Change video speed. Free.
Speed a video up or slow it down, from slow motion to 4× fast-forward, with the audio kept natural (no chipmunk pitch). No watermark, no signup.
Any speed
0.25× to 4×
Private
Processed on our engine
Temporary
Deleted after 1 hour
How it works
- 01
Add your video
Drop in a video, or click to browse. Uploaded privately over TLS.
- 02
Pick a speed
Speed it up (2×, 4×) or slow it down (0.5×, 0.25×) with a preset or the slider. Audio pitch is preserved.
- 03
Download
We re-time it with ffmpeg and hand it back in the same format. Deleted after 1 hour.
Related: Trim video · Change audio speed · Mute video · Convert.
Common questions
Does the audio go chipmunk?+
No. We use ffmpeg's tempo filter, which changes the speed while keeping the pitch natural, so sped-up or slowed-down speech still sounds right.
How fast or slow can I go?+
From 0.25× (quarter speed, slow motion) up to 4× (four times faster). Use the presets or drag the slider.
What formats work?+
MP4, MOV, MKV, WebM, AVI and more. The result comes back in the same format.
Is it free and private?+
Yes. No watermark, no signup. Uploaded over TLS, processed on our own engine, deleted after 1 hour.