Does Glitch work with Udemy's native captions?

Yes. Glitch's caption cycling controls work with Udemy's subtitle tracks.

Is there anything Glitch cannot do on Udemy?

Glitch works with the video player. It cannot interact with quizzes, exercises, or the course curriculum sidebar.

No. Udemy issues certificates based on completing the course requirements on their platform, not on your local playback speed.

Updated May 4, 20264 min read

Udemy courses can span dozens of hours. The right Chrome extension helps you get through them faster and retain more — here is what to use in 2026.

1
Step 1
Go beyond Udemy's speed limit
Udemy's player caps speed at 2×. Glitch raises that ceiling with Pro, with pitch correction on so dialogue stays natural.
SiteUdemy Featurepitch correction
2
Step 2
Let Smart Speed handle the pauses
Instructors pause, breathe, and repeat themselves. Smart Speed (Pro) skips those moments automatically so you only hear the content.
3
Step 3
Drop a bookmark every time something important is explained
Glitch's bookmark key works while the video is playing. Label each one so you can review key moments before a quiz.
Featurebookmark Featurebookmark key
4
Step 4
Write structured notes in the panel
Glitch's note field is linked to the video URL. Open the same lecture later and your notes are already there.
Featurenotes Featurenote
5
Step 5
Slow down for complex technical content
When a concept needs careful attention, drop the speed to 0.5× or step frame-by-frame through a diagram or terminal output.
6
Step 6
Check that course completion is unaffected
Glitch does not communicate with Udemy's servers. Your completion percentages and certificates are not affected.
SiteUdemy

Does Glitch work with Udemy's native captions?
Yes. Glitch's caption cycling controls work with Udemy's subtitle tracks.
Is there anything Glitch cannot do on Udemy?
Glitch works with the video player. It cannot interact with quizzes, exercises, or the course curriculum sidebar.
Will speeding through a video affect my Udemy certificate?
No. Udemy issues certificates based on completing the course requirements on their platform, not on your local playback speed.

Open the interactive demo to test karaoke, speed, filters, audio tools, and export before installing.