I Enrolled in a Udemy Course Taught by Someone Who Learned the Topic Last Month
I found this out halfway through the course. The instructor's explanation of database normalization was so off that I paused the video and Googled it myself. Turns out the "expert" had published a blog post just five weeks earlier titled "My Journey Learning SQL." Not teaching SQL. Learning SQL.
That was the moment I started paying closer attention to who's actually teaching on Udemy — and honestly, what I found was unsettling.
Udemy has over 75,000 instructors and more than 220,000 courses as of 2026. It's the biggest online course marketplace on the planet. But here's the thing — big doesn't mean good. And the platform's greatest strength (anyone can teach) is also its most dangerous weakness.
The Open Door Policy That Lets Anyone In
Udemy's instructor onboarding process is shockingly minimal. You need a camera, a microphone, and a pulse. That's basically it.
There's no credential check. No portfolio review. No test lecture evaluated by peers. You record your videos, upload them, write a description, and you're live. Compare that to Coursera, where every course is backed by a university or major company. Or edX, where instructors are professors at institutions like MIT and Harvard.
I'm not saying credentials are everything. Some of the best teachers I've encountered online never set foot in a university lecture hall. But zero vetting? That's a problem. It's like opening a restaurant where the health department never inspects the kitchen. Sure, some chefs will be amazing. Others will give you food poisoning.
What This Actually Looks Like in Practice
Here's what I've run into browsing Udemy courses over the past year:
- A "Python masterclass" where the instructor couldn't explain the difference between a list and a tuple correctly
- A "complete web development" course that still taught jQuery as if React and Vue didn't exist
- A data science course where the instructor read directly from documentation — no original explanation, no real-world examples
- A photography course with worse image quality than my phone's front camera
Not gonna lie, this isn't just a few bad apples. The sheer volume of low-effort content on Udemy makes finding quality courses feel like mining for gold in a landfill.
And Udemy knows this is a problem. They introduced a "Quality Checklist" in 2023, but it focuses almost entirely on production quality — audio levels, video resolution, minimum course length. Nothing about whether the instructor actually knows what they're talking about.
The Rating System Is Broken (and Udemy Knows It)
"But courses have ratings!" Sure. And those ratings are deeply flawed.
Most Udemy ratings cluster between 4.0 and 4.7. That's not because most courses are great — it's because of how the rating system works. Students who complete a course and enjoyed it leave reviews. Students who drop out because the course was terrible usually don't bother. This creates a massive survivorship bias.
Look, a 4.5-star course with 200 reviews might sound solid. But if 2,000 people enrolled and only 200 reviewed it, what happened to the other 1,800? Many of them likely bounced after the first few lectures. Udemy's own data shows that average course completion rates hover around 15-20%. That's abysmal. And the rating system doesn't account for any of those dropouts.
I'd recommend checking the review distribution, not just the average. A course with 4.5 stars but a significant chunk of 1-star reviews telling a consistent story ("instructor doesn't explain well," "outdated material") is very different from a 4.3-star course with almost no low ratings.
The Fake Review Problem
Then there's the review manipulation issue. I've seen instructors offer free enrollment in exchange for 5-star reviews. Some use social media groups to coordinate review swaps. Udemy has policies against this, but enforcement is inconsistent at best.
Platform Comparison: Instructor Vetting Standards
| Criteria | Udemy | Coursera | edX | LinkedIn Learning |
|---|---|---|---|---|
| Instructor Vetting | None | University/company partnership required | University affiliation required | Internal review + professional credentials |
| Credential Verification | No | Yes (institutional) | Yes (institutional) | Yes (professional) |
| Content Review Before Publishing | Technical check only | Full academic review | Full academic review | Editorial review |
| Avg. Course Rating | 4.0–4.7 | 4.5–4.8 | 4.3–4.7 | 4.4–4.7 |
| Avg. Completion Rate | ~15% | ~40% | ~35% | ~30% |
| Pricing Model | $9.99–$199 (frequent sales) | $49–$79/month (Plus) | Free audit / $50–$300 verified | $29.99/month |
| Winner | — | Instructor quality | Academic rigor | Professional relevance |
The pattern is clear. Every major competitor has some form of instructor vetting. Udemy has effectively none.
Why Udemy Won't Fix This
Real talk — Udemy's business model depends on volume. They take a cut of every course sale. More courses means more potential revenue. Implementing strict instructor vetting would shrink their catalog dramatically, and their investor pitch has always been about scale.
This isn't speculation. Udemy went public in 2021 and has consistently emphasized course count and instructor count as key metrics in their quarterly reports. Quality metrics? Barely mentioned. When your KPIs are about quantity, quality becomes an afterthought.
There's also the revenue split to consider. Udemy takes up to 63% of organic sales revenue. High-quality instructors who can attract their own audience often leave for platforms with better splits or create their own course sites using tools like Teachable or Kajabi. This creates a brain drain — the best instructors have the least incentive to stay.
The Instructors Who Are Actually Good
I'll be real — Udemy does have genuinely excellent instructors. People like Angela Yu for web development, Jose Portilla for Python, and Maximilian Schwarzmüller for React have built reputations that speak for themselves. Their courses are well-structured, regularly updated, and backed by years of teaching experience.
But these top-tier instructors represent maybe 2-3% of Udemy's instructor base. The platform's marketing often showcases them as representative of the Udemy experience. They're not. They're the exception that makes the rule harder to see.
Finding them requires work. You need to cross-reference instructor profiles, read negative reviews carefully, check update logs, and verify credentials externally. That's a lot of homework for a platform that's supposed to make learning easier.
How to Protect Yourself: A Practical Filter
If you're going to use Udemy (and there are valid reasons to — the sales pricing is unbeatable), here's what I'd suggest:
- Check the instructor's external presence. Do they have a LinkedIn with relevant experience? A personal website? Conference talks? If they exist only on Udemy, be cautious.
- Read the 1-star and 3-star reviews. Skip the 5-star ones. The middle and low-end reviews tell you about actual problems — outdated content, poor explanations, unresponsive instructor.
- Look at the "Last Updated" date. A programming course last updated in 2023 is already outdated. Technology moves fast. If the instructor isn't maintaining the course, they've moved on.
- Use the 30-day refund policy aggressively. Watch the first 3-4 sections. If the instructor isn't clicking, refund immediately. Don't fall for the sunk cost trap.
- Compare with free alternatives first. YouTube, freeCodeCamp, and MIT OpenCourseWare cover many of the same topics. If a paid Udemy course doesn't offer significantly more than a free resource, it's not worth even $12.99.
I wrote about the hidden costs of free courses in The Free Course Trap — When $0 Costs You More Than You Think, and honestly, the flip side is also true — paying doesn't guarantee quality either. It's a mess on both ends.
Should You Avoid Udemy Entirely?
No. But you should stop treating it like a curated learning platform. It's not. It's a marketplace. Think of it like a flea market for education — there are genuine treasures buried in there, but you're going to wade through a lot of junk to find them.
If you want curated quality and don't mind paying more, Coursera or edX are better choices for structured learning. I compared them in detail in Coursera vs Udemy in 2026: Which Platform Actually Delivers? — spoiler alert, the answer depends on what you're optimizing for.
For certification prep specifically, platforms with institutional backing win every time. From what I've seen, the AWS certification path and the Google Data Analytics certificate both benefit from structured curricula that Udemy's open model just can't replicate consistently.
The Fix Udemy Should Implement (But Probably Won't)
Honestly, the solution isn't complicated:
- Tiered instructor badges — Verified credentials, years of professional experience, teaching history
- Mandatory peer review — Have subject matter experts review course content before publishing
- Completion-weighted ratings — Factor in how many students actually finish the course, not just who bothered to rate it
- Transparent instructor metrics — Show completion rates, refund rates, and student engagement data publicly
Will any of this happen? Probably not. Not while the current business model keeps printing money. But as a student, you deserve to know what you're walking into. Worth it? Depends on how much digging you're willing to do.
Frequently Asked Questions
Q: Does Udemy verify its instructors' credentials?
No. Udemy operates as an open marketplace where anyone can create and publish a course without credential verification. There is no background check, no teaching certification requirement, and no peer review before a course goes live. The platform relies on student ratings and reviews as its primary quality filter.
Q: How can you tell if a Udemy instructor is actually qualified?
Check the instructor's profile for verifiable credentials like a LinkedIn page, professional portfolio, or company affiliation. Look at the student count and average rating across multiple courses, not just one. Read several 1-star and 3-star reviews — they tend to be more informative than 5-star ones. If the instructor has no external footprint beyond Udemy, that is a red flag.
Q: Are Coursera and edX instructors more qualified than Udemy instructors?
Generally, yes. Coursera and edX partner with accredited universities and established companies, so their instructors are typically professors or industry professionals with verified expertise. This does not guarantee a better teaching experience, but it does guarantee a baseline of subject knowledge that Udemy's open model cannot match.