Change Speed
Speed up or slow down video and audio (0.25×–4×) while keeping the pitch natural.
Video → MP4 · Audio → MP3 / M4A / WAV
Why it is safe to use
- Your file is processed on your device and is never uploaded to a server.
- Free, with no account and no sign-up.
- Installable as an app; a tool you have opened keeps working offline.
- Open source (MIT) on GitHub.