Udemy launched in 2010 as an open marketplace where anyone with expertise could create and sell a course. Over fifteen years it has grown to host over 250,000 courses in 75 languages, taught by more than 75,000 instructors. The marketplace model means course quality varies widely, but it also means that working professionals with current, applied knowledge can publish directly — without the institutional gatekeeping that characterises university-backed platforms.
The pricing model is unusual. List prices range from $20 to $200 per course, but Udemy runs promotions almost continuously that bring most courses to $9.99–$19.99. The practical rule is: never pay list price. If you see a course at $89.99, adding it to your wishlist and waiting a few days will almost always result in a promotional email with a discount.
Purchases come with lifetime access. Unlike subscription platforms where content disappears if you stop paying, a Udemy course bought once is accessible indefinitely. This makes it practical for reference material you want to revisit — Python syntax, SQL queries, design fundamentals — rather than just courses you watch once.
The main limitation is credibility. Udemy certificates are not institutionally backed and carry limited recognition with employers compared to a Google or university certificate on Coursera. For pure skill acquisition — learning to build a website, master Excel, or understand digital marketing — this does not matter. For career transitions where credentials are evaluated, it matters significantly.
Udemy Business at $360/user/year gives teams access to a curated library of over 27,000 courses with admin controls and learning analytics.