Dual subtitles on YouTube and Netflix, plus a lookup that does not kill the playback.
D and S on any HTML5 video, including the lecture the LMS buried in a player.
Best for re-watching a lecture at 1.75× without hunting a speed menu
Reviewed 16 September 2026 · Prices checked the same day
4.7
95K reviews
Video Speed Controller adds keyboard speed controls to almost any HTML5 video: recorded lectures, YouTube, campus players that forgot a speed button. Chrome, Firefox, and Edge. Free, open source.
It will not fix DRM exam proctoring players, and some universities block it. Do not use it to skip a live seminar you were meant to sit through; that is on you.
Pricing
free
$0
Free version
Full extension
Platforms
Chrome · Firefox · Edge
1.5× is the default that still lets you take notes. 2× is for a lecture you already heard.
Checked 2026-09-16
| Model | Free |
|---|---|
| What free actually includes | Full extension |
| Cheapest paid tier | $0 |
| Student pricing | None published |
Links from StudyApps include ref=studyapps.
Full extension Checked 16 September 2026.
Cheapest paid plan: $0. Prices checked 16 September 2026.
Re-watching a lecture at 1.75× without hunting a speed menu
No Safari listing
Dual subtitles on YouTube and Netflix, plus a lookup that does not kill the playback.
Lecture transcripts, with a student rate almost nobody prints.
A dark theme for sites that never made one, including PDFs in the tab.