Speed a clip up for a snappy montage, or slow it down for a dramatic, cinematic moment. This free video speed controller lets you change playback speed from slow-motion to fast-forward in your browser — great for tutorials, sports, reactions and social edits.
Upload your video
Click “Change speed” and let it process
Download your finished video
Upload your clip, click “Change speed”, and download the result. It works in your browser — no software to install.
Yes — Video Speed Controller is completely free, with no watermark and no sign-up required to get started.
MP4, MOV, WebM and other common formats all work. The speed controller re-times the footage and exports a standard, widely-compatible file at the original resolution.
Trim the re-timed clip to its best seconds or compress it for messaging apps — and when you want to create something new, Vivideo's AI studio generates full videos with voices and captions.
This is how to speed up or slow down a video without software: upload a clip, pick a speed from slow motion to fast-forward, and download the result. In the browser, free, no watermark on your re-timed clip.
Slow a moment down to catch the detail, or speed a long clip up into a snappy timelapse — smooth at every speed.

Whether you want dramatic slow motion or a fast-forward timelapse, this free speed controller re-times the video smoothly. Pick 0.25×, 2×, 4× or anything between — the motion stays clean, not choppy.
Choose a speed and export.
Slow motion from 0.25×
Fast-forward up to 4× and beyond
Smooth, not choppy

Slowing a clip down turns a quick action into a highlight; speeding it up turns a long recording into a shareable timelapse. One tool covers both ends of the dial.
Two effects, one control.

Change video speed online free — no watermark, no sign-up, no download. Works anywhere, keeps your file private on your own device.
Your clip stays on your device.

Anyone re-timing a clip:
Vivideo is more than a speed tool — generate, edit and translate video, all in one place.
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Trustpilot
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Capterra
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“I went from idea to a published video in under ten minutes. The avatars look unbelievably real.”
illustrative
Watch a clip slow to smooth slow-mo — then re-time yours free on Vivideo.
Speed up or slow down your clip — online, with no watermark.