Change video or audio speed online, no pitch shift

Speed up or slow down a video or audio file — 0.25× to 4×. The audio is stretched to fit, not resampled, so it keeps its original pitch.

How it works

1. Drop in your video or audio file.
2. Pick a speed — the new duration shows live.
3. Click Apply and download the result.

Questions

Does the pitch change?

No. The audio is stretched to fit the new length instead of being resampled, so voices and music keep their original pitch — the same effect as changing the playback speed on YouTube.

Does it work on audio files?

Yes — MP3, WAV, M4A and similar work the same way, and the result downloads as an MP3.