ChatGPT answers, unedited

If your goal is specifically “I have a course idea and want to test whether strangers will actually buy it before investing heavily in production,” I’d choose Udemy.

Best options

Why Udemy wins

Udemy is unusually well suited to the “is there demand for this?” experiment:

• You can create and host courses without an upfront fee. support.udemy.comsupport.udemy.com
• It has a large existing learner marketplace—Udemy currently reports 80M students and 1.1B enrollments. www.udemy.com
• Its Marketplace Insights tool gives creators data on student demand, search volume and revenue for potential topics. support.udemy.com
• You can test a relatively small version of the idea rather than producing a gigantic course first. Udemy requires at least 30 minutes of video and 5 lectures/modules for a course. support.udemy.comsupport.udemy.com
• You get a particularly useful validation signal: people who don't know you choosing to enroll.

The big downside is economics. For sales generated through your own promotion, Udemy says instructors receive 97% of revenue; for sales without an instructor promotion, the share is 37%. support.udemy.com So I wouldn't necessarily use Udemy as the final home for a successful premium course.

The strategy I'd use

Don't build the full course first.

1. Pick a narrowly defined problem:

“How to automate X for Y” rather than “Everything about X.”

2. Research the topic in Udemy Marketplace Insights.
3. Look at competing courses, enrollment/review counts, pricing and positioning.
4. Build the minimum viable course—perhaps 60–120 minutes initially.
5. Publish it.
6. See whether people who don't already know you enroll, finish lessons, leave reviews, and ask for more.
7. If the signal is strong, turn the validated idea into a higher-priced course/cohort/community on your own platform.

One important distinction: if by “test” you mean “will people pay $500–$2,000 for this?”, Udemy isn't the ideal experiment because its marketplace economics and pricing are geared toward much lower-priced courses. In that case, Maven is more interesting because it is designed around curated, higher-priced cohort courses. www.mightynetworks.com

So my shorthand is:

No audience + want to test demand → Udemy
Creative/design course → Skillshare
Premium live/cohort concept → Maven
Already have an audience → Teachable/Thinkific/etc.

If you tell me what kind of course you're considering, I can also tell you which marketplace is most likely to give you a meaningful validation signal.

If your goal is specifically “I have a course idea and want to test whether strangers will actually buy it before building a whole course business”, I’d start with Udemy.

Best options

Why Udemy: it explicitly provides a Marketplace Insights tool showing demand and competition for course topics, and courses are discoverable through its marketplace. Udemy currently reports 84M learners, 90K instructors and 290K+ courses. teach.udemy.com

That makes it unusually useful for an experiment like:

“If I put X course in front of people who don't know me, will they pay for it?”

You can create a relatively lean version, put it on the marketplace, and use enrollments, conversion, reviews and learner questions as market feedback rather than relying entirely on friends or your existing social following. Udemy also says instructors retain rights to their content. support.udemy.com

When I'd choose Skillshare instead

If the idea is about design, illustration, photography, video, creativity, freelancing, productivity, etc., I'd seriously consider Skillshare Teach. Skillshare says its community has hundreds of thousands of learners, and its search, browse and recommendation systems can surface classes to members. help.skillshare.com

The catch is that Skillshare currently requires approval for first-time teachers, and its economics are based primarily on engagement/royalties rather than a straightforward “customer pays $X for my course” transaction. help.skillshare.com

My recommendation

For a general creator trying to validate a course idea: Udemy.

I'd actually treat the marketplace as a demand-testing instrument, not necessarily the eventual home of the business:

Idea → small course → Udemy → measure organic demand → improve based on feedback → then build your own higher-priced version.

If you tell me what kind of course you’re thinking about, I can also compare the best 3–5 marketplaces specifically for that topic and tell you which gives the strongest validation signal.

If your goal is specifically “I have a course idea and want to test whether strangers will actually buy/watch it before building a whole business around it,” I’d rank the options:

1. Udemy — best overall for validation

• It has a large built-in learner marketplace; Udemy currently says it has 80M students and 1.1B enrollments. Udemy
• Its Marketplace Insights tool gives you data on search demand, competition, and revenue for potential topics. Udemy Support Teach Udemy
• You can even launch a free course specifically to test demand and teaching approach before charging. Udemy Support
• Best experiment: publish a focused, minimum-viable course → see enrollments, reviews, completion/engagement → then decide whether to build the full premium version.
• Skillshare — best for creative courses

• It has a large existing creative-learning community and actively promotes classes through search, recommendations, curation, and homepage features. Skillshare Help Center Skillshare
• Skillshare also publishes current in-demand topic/search data, which is useful for deciding what to test. Skillshare Help Center
• Publishing is free, although new teachers currently need approval. Skillshare Help Center Skillshare
• The catch: the monetization model is primarily based on member engagement/watch time rather than conventional course purchases. Skillshare Help Center
• Teachable / Thinkific / Kajabi — better after validation

• These are excellent if you already have an audience because you control your storefront, pricing, and customer relationship.
• But they don't solve the core problem you're describing: getting an existing marketplace audience to discover an unproven idea.
• You're essentially responsible for bringing the traffic yourself.

My pick

Start with Udemy. It's unusually well suited to the experiment you're describing because you can validate both the topic and actual learner demand without first building an audience. Its own documentation explicitly positions free courses as a way to test demand. Udemy Support

A useful validation sequence would be:

Idea → Marketplace Insights → 60–90 minute MVP course → marketplace exposure → enrollments/engagement/reviews → decide whether to build the $100+ version.

If the course is primarily creative (design, photography, illustration, video, etc.), I'd seriously consider Skillshare instead because its audience is more specifically aligned with those subjects. Skillshare

udemy.com · teach.udemy.com · skillshare.com

If your goal is specifically “I have a course idea and want to validate whether strangers will pay for it, using a marketplace that already has learners”, I’d rank the options:

🥇 My pick: Udemy

For pure idea validation, Udemy is probably the closest match to what you're describing.

You can create and host courses for free, and you don't need prior approval to get started. Udemy also has a marketplace where students can discover courses independently of your own audience. support.udemy.comsupport.udemy.com

The particularly useful part is that Udemy's marketplace gives you a fairly clean experiment:

Course idea → course listing → strangers discover it → strangers pay

That's much more meaningful than putting up a landing page and asking people whether they'd be interested.

The downside is economics: Udemy gives instructors 37% of net revenue on sales that Udemy generates, but 97% when the student purchases using your instructor promotion/coupon/referral link. support.udemy.comsupport.udemy.com

So I'd use Udemy less as the eventual home of the business and more as a demand-testing laboratory.

🥈 Skillshare — excellent for creative topics

If the course is about design, photography, illustration, video, animation, freelancing, or other creative skills, Skillshare is worth considering. Its audience is specifically oriented toward creative learning. www.skillshare.com

But the validation mechanism is different: teachers earn primarily based on member watch time and engagement, rather than someone buying your individual course. support.udemy.comwww.skillshare.comhelp.skillshare.com

That makes it better for testing:

“Do people actually want to consume this content?”

rather than:

“Will someone pay $X for this specific course?”

Also, Skillshare changed its teacher payout requirements in 2026, so I'd be less inclined to choose it purely as a quick validation hack. help.skillshare.com

🥉 Maven — better for a serious/high-ticket idea

Maven is interesting if you're talking about something like:

• AI for marketers
• Product management
• Career advancement
• Entrepreneurship
• Data/engineering
• Leadership
• Professional skills

Maven has marketplace discovery, personalized emails, and trending placements. But there's an important catch: you don't simply upload an unproven course and immediately get marketplace distribution. You generally need 100 waitlist leads or 2 paid enrollments before Maven will review the course for marketplace listing. help.maven.com

That's actually a good validation mechanism, but it means Maven is more:

“Validate → launch → get marketplace amplification”

than:

“Put an idea on a marketplace and see whether strangers buy it.”

The distinction I'd use

If you're evaluating software for a creator product, I'd think about the platforms this way:

Want to test whether an idea has demand? → Udemy

Want to test whether creative content gets consumed? → Skillshare

Want to validate a premium professional cohort? → Maven

Already know there's demand and want to build an owned business? → Teachable/Kajabi/Thinkific

The key distinction is marketplace demand vs. audience demand. Platforms such as Teachable and Kajabi are primarily infrastructure for selling to your audience; Udemy and Skillshare actually give you access to an existing learner marketplace. creatorstackclub.com

If you're actually evaluating this as a product opportunity (e.g. you're thinking about building software for creators to test course ideas), I can also give you a competitive landscape of the “course validation” tools and the gap none of these platforms currently fills.

If your goal is specifically “I have a course idea and want to put up a lightweight version where an existing audience can discover it and tell me whether they actually want it,” I’d rank the options:

🥇 I'd start with Udemy

Udemy is unusually well suited to testing demand before investing heavily in a course. Its Marketplace Insights tool gives instructors data on search volume, learner demand, competition, and revenue for prospective topics. You can also publish without paying an upfront instructor fee. support.udemy.com

More importantly, Udemy actually has marketplace scale: its 2025 filing says it had 90,000+ instructors, and instructors collectively earned $168 million in 2025. www.sec.gov

The catch is that you're trading some economics and control for that distribution. If your goal is validation, that's often a good trade.

Udemy Marketplace Insights

🥈 Skillshare if the course is creative

I'd choose Skillshare over Udemy for things like:

• illustration
• photography
• video
• design
• animation
• creative career
• creative workflows
• AI for creatives

Skillshare says it has hundreds of thousands of learners, doesn't charge to publish a class, and pays teachers based largely on member engagement/watch time. www.skillshare.com

There's one important 2026 caveat: Skillshare is currently selective about which categories new teachers can enter. New classes are being accepted in areas including AI & Innovation, Art & Illustration, Design, Film & Video, Photography, Creative Career, and others, while categories such as Marketing & Business and Productivity are currently closed to new teachers. help.skillshare.com

Skillshare — Teach

The validation strategy I'd actually use

Don't build a polished 8-hour course first.

Instead:

1. Use Udemy Marketplace Insights to find 2–3 versions of your idea with existing demand.
2. Create a small, genuinely useful version—perhaps 60–120 minutes.
3. Put it on the marketplace.
4. Watch enrollment, conversion, reviews, completion/engagement, and organic discovery.
5. Look at what students actually ask for.
6. If the signal is strong, build the comprehensive $100–$300+ version elsewhere, where you control pricing and the customer relationship.

That's the key distinction: use a marketplace as a validation laboratory, not necessarily as the permanent home of your business.

If you tell me what kind of course you're considering, I can also compare Udemy vs. Skillshare vs. Maven vs. Gumroad vs. a waitlist/pre-sale specifically for validating that idea.

If your goal is specifically “I have a course idea and want to test whether strangers will pay for it before building a whole business around it,” I’d rank the options:

My #1: Maven

Maven is unusually well suited to testing a course before investing heavily in it. It has a marketplace, built-in discovery, waitlist/interest-survey tools, and lightweight products such as Lightning Lessons and one-day workshops specifically intended to test demand. maven.comhelp.maven.comabout.udemy.com

The important caveat: Maven isn't truly “post an idea and let the marketplace validate it for you.” In 2026, you generally need either 100 waitlist leads or 2 paid enrollments before your course qualifies for marketplace listing. Maven explicitly describes its marketplace as an accelerant, not a replacement for initial distribution. maven.comhelp.maven.comabout.udemy.com

That's actually a pretty good validation mechanism: can you get two strangers to pay?

Maven is particularly attractive if your course is about things like:

• AI
• marketing
• business
• career development
• leadership
• product
• design
• data/engineering

Its audience skews toward professional/business learners, and its current course pricing is much higher than typical mass-market course marketplaces. maven.com

If you want maximum built-in demand: Udemy

If your hypothesis is more like “Will people buy a $20–$100 self-paced course on this topic?”, I'd test it on Udemy instead.

The current Coursera–Udemy combination gives the broader platform access to 290M+ learners, so the potential audience is vastly larger than Maven's. about.udemy.com

The downside is that Udemy is a very different business model. You're competing in a huge marketplace where courses are often discounted heavily, so selling on Udemy validates demand for the topic at Udemy economics, not necessarily whether people will pay your eventual premium price.

Skillshare

I'd choose Skillshare if the course is aimed at creative/consumer skills—illustration, photography, design, video, productivity, writing, etc. First-time teachers currently have to apply and get approved before publishing. help.skillshare.com

It's less useful if your real hypothesis is “Can I sell this as a $500–$2,000 transformation?”

The strategy I'd use

Don't build the full course first.

Test → sell → teach → expand.

For example:

1. Create a very specific course promise.
2. Put up a landing page.
3. Offer a $50–$200 beta workshop or a small paid cohort.
4. Try to get 5–10 people to pay.
5. Deliver it live.
6. Watch where students struggle and what they actually value.
7. Turn the validated material into the full course.

For a professional/premium idea, I'd use Maven. For a broad, self-paced consumer topic, I'd use Udemy.

If you tell me the course idea you're considering, I can tell you which marketplace I'd test it on and what I'd price the initial validation offer at.

If your goal is specifically “I have a course idea and want to put it in front of an existing audience to see if strangers will actually pay for it,” I’d rank the options differently from the usual “best online course platforms” lists.

My picks

1. Maven — probably the closest match

Maven is particularly interesting because it was designed around expert-led, cohort-based education, rather than simply hosting videos.

More importantly for your use case, Maven actually has a marketplace/discovery mechanism. Students can discover courses through browsing, search, personalized emails, and trending placements. help.maven.comhelp.maven.com

There's a catch: you don't immediately get marketplace distribution. Maven currently requires either 100 waitlist leads or 2 paid enrollments before a course qualifies for marketplace listing. help.maven.comhelp.maven.com

That makes Maven somewhat unusual: it's not quite “list an idea and see what happens.” It's more:

Create a lightweight offer → get initial evidence of demand → Maven amplifies it through its marketplace.

Maven itself explicitly positions Lightning Lessons and workshops as ways to validate demand before building the full course. maven.com

Best if: your idea is professional/business/AI/marketing/design/career-oriented and you can sell a live or cohort experience for hundreds of dollars.

2. Udemy — best if you want the biggest “stranger validation” experiment

Udemy is arguably the more obvious choice if what you're really asking is:

“Can I create a course around X, put it in an established marketplace, and see whether people who don't know me buy it?”

That's much closer to Udemy's fundamental model.

The tradeoff is that Udemy tends toward high-volume, lower-priced, self-paced courses, whereas Maven is oriented toward premium expert instruction.

So I'd use:

• Udemy → “Will people buy this information/productized skill?”
• Maven → “Will professionals pay significant money for this transformation?”

3. Skillshare — particularly good for creative topics

Skillshare makes sense for illustration, design, photography, video, writing, productivity and other creator-oriented subjects.

It has an existing membership audience, although there's an approval process for first-time teachers before they can publish their first class. help.skillshare.com

I'd choose it over Udemy if the proposed course feels more like a creative class than a conventional professional-development course.

The important distinction

If you're doing idea validation, don't optimize for the platform with the easiest course-building tools.

Optimize for the platform that lets you answer:

“Will someone who doesn't know me give me money for this specific outcome?”

That makes the hierarchy roughly:

Maven → strongest signal for premium professional education
Udemy → strongest signal for mass-market self-paced education
Skillshare → strongest signal for creative education

And I'd not start with Teachable/Gumroad/etc. if your primary objective is testing whether there is existing marketplace demand. Those are primarily distribution/checkout tools—you generally have to bring the audience yourself.

If you tell me what kind of course you're considering (e.g. AI, fitness, photography, business, parenting, software, writing), I can narrow this down to the 2–3 marketplaces where you could realistically test it with the least upfront work.

If your goal is specifically “I have a course idea, I want to put it in front of an existing audience, and see whether strangers will actually buy/watch it before I invest heavily”, I’d rank the options:

🥇 I'd start with Udemy

Udemy is unusually well suited to this experiment because you're effectively renting access to an established marketplace rather than having to build your own audience first.

As of its latest filing, Udemy reported nearly 84 million learners, with more than 290,000 courses in its consumer marketplace. www.sec.gov

More importantly, you can publish courses without paying a hosting fee. If a student discovers your course organically through Udemy's marketplace, you currently receive 37% of the net sale; if the purchase comes through your own instructor promotion/referral, the share is 97%. support.udemy.com

That makes it particularly useful for answering:

“Will people who don't know me pay for this?”

That's a much stronger validation signal than asking your Twitter/LinkedIn/email audience whether they'd be interested.

Udemy for Instructors

Skillshare is interesting—but tests a different thing

Skillshare makes more sense if the course is creative: design, illustration, photography, writing, animation, productivity, etc.

The platform pays teachers based on member engagement/watch time rather than simply giving you a purchase price for each student. help.skillshare.comcreatorstackclub.com

However, its 2026 economics have become less attractive for a brand-new teacher. Skillshare introduced follower/watch-time requirements for royalties, and in July 2026 further tightened eligibility. help.skillshare.com

So I'd use Skillshare to test:

“Do people actually consume and engage with this educational content?”

rather than:

“Will people pay $X for this course?”

One important distinction

If you're trying to validate a business idea, don't build the whole 8-hour course first.

I'd make a small, complete version—perhaps 60–120 minutes covering the core promised transformation—and put it on Udemy.

Then watch:

1. Impressions → clicks = Is the topic/title interesting?
2. Clicks → enrollments = Does the promise convert?
3. Completion/watch time = Does the course actually deliver?
4. Reviews/questions = What do learners actually want?
5. Organic sales = Is there genuine marketplace demand?

If you get traction, then build the premium version on something like Teachable, Kajabi, Thinkific, etc., where you have much more control over pricing, branding, and the customer relationship. Marketplace platforms trade some of that control for discoverability. creatorstackclub.com

Bottom line: for the exact use case you described, I'd pick Udemy first. It's probably the closest thing to a “marketplace smoke test” for a course idea.

If your goal is specifically “I have a course idea and want to test whether strangers will actually buy it by putting it in front of an existing audience,” I’d rank the options:

My pick: Maven

For testing a course idea, Maven is unusually well aligned with what you're describing.

Maven has an actual course marketplace where students browse by topic, search, and see trending courses. More importantly, its current system is explicitly designed around course-market fit: you can validate with an interest list or paid enrollments before being promoted into marketplace discovery. You need either 100 waitlist leads or 2 paid enrollments to qualify for marketplace listing. help.maven.comhelp.maven.com

That creates a useful validation funnel:

Idea → landing page → interest/waitlist → 2 paid customers → marketplace exposure → more customers

And Maven's marketplace currently has categories specifically including Creators, Marketing & Sales, Business & Finance, AI, Design, Data & Engineering, Leadership & Career, etc. maven.com

The catch: Maven isn't a pure “post anything and immediately get marketplace traffic” platform. It deliberately requires some initial traction. Maven itself describes its marketplace as an accelerant, not a replacement for distribution. help.maven.comhelp.maven.com

When I'd choose Udemy instead

Choose Udemy if your hypothesis is something like:

“Will people who don't know me pay for a straightforward, self-paced course about X?”

That's arguably the cleanest marketplace experiment because you're testing against a huge existing learning marketplace rather than primarily your own audience.

It's particularly good for topics where people already search for a concrete solution—software, business skills, technical skills, certifications, productivity, etc.

When Skillshare wins

If you're teaching creative skills, I'd seriously consider Skillshare. It says its community includes hundreds of thousands of learners, with classes spanning creative skills and personal creative development. www.skillshare.com

The important distinction is that Skillshare is more naturally suited to classes/content consumed by members, whereas Maven is better if you're testing whether people will pay a meaningful amount for a transformation/outcome.

The key distinction

I'd actually frame the choice around what you're trying to validate:

• “Do people want to learn this?” → Skillshare/Udemy
• “Will people pay $500–$2,000+ for me to help them achieve this?” → Maven
• “Can I build a scalable course business around my own audience?” → Teachable/Kajabi
• “I have no audience and want strangers to discover my course” → Udemy
• “I have some audience, but want marketplace discovery to amplify it” → Maven

For a creator testing a genuinely new course/business idea, I'd start with Maven if the course can be delivered live/cohort-style, and Udemy if it makes sense as self-paced content.

One especially useful feature of Maven is that you don't actually have to build the whole course first—you can validate the concept, collect interest, and get paid enrollments before investing heavily in course production. help.maven.com

If your goal is specifically “I have a course idea and want to validate demand by putting it in front of an existing audience”, I’d rank the options differently than if you were simply looking for the best course-hosting software.

My picks

1. Udemy — best if you want marketplace-driven validation

If you want to answer:

“Will strangers who don't know me actually buy this course?”

I'd start here.

Udemy's marketplace is enormous and built around search/discovery, so you can test topic + title + positioning + price + curriculum without having to manufacture the entire audience yourself.

The downside is that Udemy tends to work best for practical, searchable, self-paced topics and its pricing/discounting environment isn't representative of what you could necessarily charge independently.

Good test: create a deliberately narrow, useful 60–120 minute version of your proposed course and see whether people enroll, finish it, and leave reviews.

2. Skillshare — particularly good for creative/knowledge topics

Skillshare is attractive if the course is about things like design, illustration, photography, video, writing, productivity, freelancing, etc.

It has an established member base, and Skillshare says it promotes selected classes through search, recommendations, homepage placements and curated features. help.skillshare.com

There's also an approval process for first-time teachers, so you can't simply throw anything onto the platform immediately. help.skillshare.com

I'd use Skillshare when audience interest and engagement are more important than proving that people will pay a high standalone price.

3. Maven — my favorite for validating a premium course idea

This is the interesting one if by "course" you mean something more like:

“I can teach professionals a transformation and charge $500–$2,000+ for it.”

Maven is specifically built around cohort-based courses, workshops and live learning. Its marketplace currently has categories ranging from AI and marketing to leadership, career and business. maven.com

More importantly, Maven has an unusually useful validation mechanism: you need either 100 waitlist leads or 2 paid enrollments to qualify for marketplace listing. Once listed, courses can be discovered through browsing, search, personalized emails and algorithmic trending placements. help.maven.com

That makes it less of a pure "upload it and see what happens" marketplace than Udemy—but arguably a better test of whether you have a commercially valuable course idea.

The key distinction

I'd think about it this way:

Want to test:

“Do people want to learn this?”

→ Udemy / Skillshare

Want to test:

“Will people pay meaningful money for this transformation?”

→ Maven

Want to test:

“Can I build a sustainable course business around my own audience?”

→ Teachable / Kajabi, but after validation.

If I were doing this myself

I'd actually use Maven first if the intended product is premium.

I'd create a small paid workshop, not the full course. Get people to buy it, teach it live, observe what questions they ask and what outcome they actually want, then turn the successful version into the larger course.

Maven itself essentially encourages this path: its marketplace currently includes short 1-day workshops and even free “Lightning Lessons” alongside multi-week cohorts. maven.com

So my short answer:

• Best marketplace test: Udemy
• Best creative-course test: Skillshare
• Best premium-course validation: Maven
• Best eventual owned platform: Teachable/Kajabi

If you tell me the course idea + who it's for + roughly what you'd want to charge, I can tell you which marketplace I'd test it on and exactly how I'd structure the validation experiment.

If your goal is “I have a course idea and want to test whether strangers will actually pay for it”, I’d rank the options:

🥇 Best overall: Udemy

For your specific use case, Udemy is probably the cleanest experiment.

You can create and publish a paid course without paying a hosting fee, and Udemy itself can generate sales through its marketplace. When Udemy drives the sale, instructors currently receive 37% of the net amount; sales generated through your own coupon/referral link pay 97%. support.udemy.com

That makes it useful for answering:

“Will people who don't already know me buy this?”

You don't need to build an email list first. You can put up a narrowly positioned course, see whether it gets impressions → clicks → enrollments → reviews, and iterate.

Caveat: Udemy's marketplace tends to favor relatively inexpensive, highly searchable courses. So it's excellent for validating topic demand, but less useful for validating whether people will pay $500–$2,000 for your eventual premium course.

🥈 Best for premium-course validation: Maven

Maven is more interesting if you're testing a serious, high-ticket course rather than a $20–$50 information product.

It has a marketplace/discovery system, but there's an important catch: you don't simply upload a course and immediately get marketplace distribution. Maven currently requires 100 waitlist leads or 2 paid enrollments before a course qualifies for marketplace listing. Once listed, students can discover courses through browsing, personalized emails and trending placements. help.maven.com

That's actually a pretty good validation mechanism.

Maven explicitly supports 1-day workshops and free Lightning Lessons as ways to test an idea before committing to a full cohort course. maven.com

So I'd use Maven if your hypothesis is something like:

“Will professionals pay $500–$2,000 to learn this outcome from me?”

rather than:

“Will people buy a $19 video course about this topic?”

Skillshare: good, but a different experiment

Skillshare has a substantial built-in learning audience and is particularly attractive for design, illustration, photography, video, creativity and similar subjects.

But its economics are engagement/royalty based rather than straightforward “customer pays $X for my course.” And as of July 16, 2026, Skillshare has tightened its royalty eligibility requirements. help.skillshare.com

So I'd use it to test:

“Do people want to consume content about this topic?”

rather than:

“Will people pay $X for this specific transformation?”

What I'd actually do

If you're starting with an unproven course idea, I'd run a two-stage experiment:

Stage 1 — Validate the topic cheaply

Create a very narrow Udemy course around the idea.

Don't build a 10-hour masterpiece. Make perhaps 60–120 minutes of genuinely useful material, with a very specific promise.

Measure:

Impressions → landing-page clicks → enrollments → completion → reviews

If nobody clicks, your positioning/topic is probably wrong.

If people click but don't enroll, your promise/price may be wrong.

If people enroll and complete it enthusiastically, you've got something worth investigating.

Stage 2 — Validate the business

Take the winning concept to Maven and sell a live workshop/cohort at a substantially higher price.

That's where you find out whether:

“People like this topic”

turns into:

“People will pay me meaningful money to solve this problem.”

Bottom line

If you want one answer: start with Udemy.

If you're building a premium expert-led course: start with Maven.

And I wouldn't use Teachable/Kajabi/Thinkific for the initial experiment unless you already have an audience—they're excellent course infrastructure, but they don't solve the distribution/marketplace-validation problem. creatorstackclub.com

If you tell me the course idea + target customer + approximate price, I can also tell you which marketplace is likely to be the strongest validation channel and what I'd test first.

If your goal is “I have a course idea; I want to put it in front of people who already browse for courses and see whether they’ll buy it”, I’d rank the options:

🥇 Udemy — best if validation is the priority

Udemy is probably the closest match to what you're describing. You can create and host courses without an upfront fee, and students can discover courses through the Udemy marketplace rather than you having to generate all the traffic yourself. support.udemy.comsupport.udemy.com

The particularly useful thing for validation is that Udemy has Marketplace Insights, which lets instructors research demand for topics before building. support.udemy.comsupport.udemy.com

The downside: Udemy is heavily price/promotional driven, so a course selling for $15–30 there doesn't necessarily prove that people would pay $500+ for the same knowledge elsewhere.

Udemy

🥈 Maven — best if you want to validate a business, not just a topic

Maven is more interesting if your eventual course is something like:

“I'll teach X to Y people and help them achieve Z outcome in 4 weeks.”

It's a marketplace for cohort-based courses, and its discovery system surfaces courses to people browsing Maven, through personalized emails, and through trending placements. help.maven.com

There's an important catch: you don't simply list a brand-new idea and immediately get marketplace distribution. Maven currently requires either 100 waitlist leads or 2 paid enrollments, followed by review, before a course is publicly listed. help.maven.com

That's actually pretty good for validation: two strangers paying you is a much stronger signal than 100 people clicking “I'm interested.”

Maven courses are also positioned at substantially higher prices—the platform says courses commonly range from $800–$2,500, with $200 as the minimum. help.maven.com

Maven course marketplace

🥉 Skillshare — particularly good for creator/creative topics

If the course is about illustration, photography, video, design, writing, productivity, freelancing, or other creative skills, Skillshare is worth considering. It has an established member base, but first-time teachers currently need to apply and be approved before publishing. help.skillshare.com

Skillshare for teachers

What I'd choose

If you're testing “Will anyone pay for this topic?” → Udemy.

If you're testing “Will people pay serious money for this specific transformation?” → Maven.

If you're testing a creative/skills class → Skillshare.

And I wouldn't start with Teachable, Kajabi, Podia, etc. for this particular experiment. They're excellent course businesses, but they're primarily infrastructure for selling to your own audience. They don't solve the “I need an existing pool of potential students” problem nearly as well.

A particularly strong validation sequence would be:

Idea → Udemy/Maven listing → real purchases → teach a small version → observe questions/results → refine → build the full course.

That lets you avoid spending months recording a course that nobody actually wants.

If your goal is specifically “I have a course idea and want to test whether strangers will actually buy/watch it before investing heavily in building a business around it,” I’d rank the options:

🥇 I'd start with Udemy

Udemy is unusually well suited to course-market validation because it has both an existing learner marketplace and a tool specifically designed to investigate demand.

Its Marketplace Insights tool provides data on student demand, search volume, competition, and revenue for course topics. Udemy explicitly positions it as a way to validate or refine an idea before creating the course. support.udemy.com

Even better, you don't necessarily have to start by making a polished $200 course. Udemy says that offering a free course can be used to build an audience and test demand for a topic while getting feedback on your teaching. support.udemy.com

Udemy Marketplace Insights / Instructor resources

The experiment I'd run:

1. Search 3–5 versions of your course idea in Udemy Marketplace Insights.
2. Pick the narrowest version with meaningful demand but manageable competition.
3. Create a small, genuinely useful version rather than a 10-hour mega-course.
4. Put it on Udemy.
5. Watch organic enrollments, conversion, reviews, questions, and completion/engagement.
6. If strangers consistently respond to it, then consider turning it into a premium standalone course.

The important distinction is that a sale from someone who doesn't already know you is much stronger validation than getting 20 friends to say they'd buy it.

🥈 Skillshare is particularly interesting for creator/creative topics

Skillshare has a substantial built-in learning community, and its discovery system includes search, browsing, recommendations, and editorial promotion. help.skillshare.com

It also publishes in-demand topic data, which is useful for figuring out whether your proposed class aligns with what members are searching for. help.skillshare.com

The downside for validation is that Skillshare isn't really a conventional “does someone pay $X for this course?” experiment. Teachers earn based largely on member engagement/watch time and related programs, rather than each student buying your course individually. help.skillshare.com

So I'd use Skillshare to answer:

“Do people want to consume this?”

and Udemy to answer:

“Will people actually enroll in this?”

What I would not use initially

I'd avoid starting with Teachable, Thinkific, Kajabi, Podia, etc. if the specific objective is marketplace validation. They're excellent once you have demand, but you're generally responsible for bringing the audience yourself. A marketplace is valuable precisely because it gives you access to people who weren't already following you. www.ruzuku.com

My recommendation

For a general creator: start with Udemy.

For photography, design, illustration, writing, productivity, creativity, etc.: test Skillshare as well.

For a $500–$2,000+ cohort-based course: consider Maven, but that's a different validation model—you'll be testing willingness to commit to a live, premium experience rather than passive course demand.

If you tell me what the course idea is, I can also research the current marketplaces and tell you where I'd test it, what competing courses exist, approximate demand, and how I'd structure the smallest possible validation experiment.

If your goal is specifically “I have a course idea and want to test whether strangers will actually want it, using a marketplace that already has learners”, I’d rank the options:

🥇 Udemy is probably what you're looking for

Udemy is unusually well suited to course-market validation because its Marketplace Insights tool gives instructors data on student demand, search volume, competition, and revenue for potential topics. You can also publish without paying an instructor fee, and Udemy says instructors retain ownership of their course content. support.udemy.com

That gives you a useful validation loop:

Idea → research demand → make a relatively small course → list it → see whether marketplace learners enroll/review/watch → decide whether to build the larger version.

The important caveat is that Udemy's economics are designed around the marketplace: you're trading some revenue and control for access to Udemy's audience. That's actually a feature rather than a bug when your goal is validation.

Udemy instructor resources

🥈 Skillshare if you're a creative

Skillshare is particularly attractive for design, illustration, photography, video, animation, creative careers, etc. It explicitly positions itself around a large community of creative learners. www.skillshare.com

The catch in 2026 is that Skillshare has tightened its teacher economics: as of July 16, 2026, teachers need at least 50 followers plus additional watch-time/publishing requirements to qualify for monthly royalties. help.skillshare.com

So I'd choose Skillshare when your subject naturally fits its creative audience—not simply because it has an audience.

The distinction I'd use

If you're asking:

“Will people pay to learn this particular thing?”

→ Udemy

If you're asking:

“Will people engage with and complete a class about this creative skill?”

→ Skillshare

If you're asking:

“Can I build a profitable course business around my existing audience?”

→ Teachable/Kajabi/etc.

In other words, don't start with Teachable or Kajabi if audience acquisition is part of the experiment. They're primarily infrastructure for selling to an audience you already have, whereas Udemy and Skillshare can provide marketplace discovery. creatorstackclub.com

If you tell me what kind of course you want to test (e.g. AI, fitness, business, photography, career skills), I can tell you which marketplace is likely to give you the cleanest validation signal and what I'd put up as the minimum viable course.