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Video tools

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.

0.25×–4× rangePitch-preserved audioSame format backDeleted within 1 hour

Any speed

0.25× to 4×

Private

Processed on our engine

Temporary

Deleted within an hour

How it works

  1. 01

    Add your video

    Drop in a video, or click to browse. Uploaded privately over TLS.

  2. 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.

  3. 03

    Download

    We re-time it with ffmpeg and hand it back in the same format. Deleted within an 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 within an hour.