Speed up video
Free, no sign-up. your file never leaves your device
How to use
Frequently asked questions
Pick the speed in the buttons above (2x, 3x or 5x) and drop the video into the upload area. "Custom speed" lets you type any value — 1.5x for a lecture, 8x or 10x for a time-lapse. The result is an MP4 ready for WhatsApp, Instagram or YouTube.
Yes, and without the "chipmunk" effect: the audio is sped up while keeping its original pitch, so speech stays understandable at 2x and even 3x. Prefer silence? Untick "Keep the audio" to get a muted video — common for time-lapses and social posts with music on top.
Yes. Under "Custom speed", type a value below 1 — 0.5 makes the video twice as slow. The tool does not invent new frames, so slow motion looks smoothest on footage shot at 60 frames per second.
The video is re-encoded inside your browser, so it depends on its size and on your device. Short clips take seconds; long videos can take a few minutes — keep the tab open. The higher the speed, the shorter the result.
The result is an MP4 (H.264) with quality calibrated to stay sharp without bloating the file. Extra frames are dropped so the video stays at up to 30 frames per second — what every player and social network expects.
No. The whole process runs in your browser using your own device — the video never leaves your phone or computer.