Change video speed online
Speed up or slow down any video. Make slow motion clips or fast-forward long recordings. Free, runs in your browser.
Drop your video here
or click to browse: MP4, MOV, AVI, WEBM, MKV
Related tools
What this tool does
Speed up a long webinar or lecture recording to get through it faster, or slow footage down to catch details you'd otherwise miss, like a sports clip or a tutorial step. Presets range from 0.25x for dramatic slow motion up to 4x for a quick skim through long recordings.
What to do next
Frequently Asked Questions
What speed range is supported?
0.25x up to 4x, with presets in between.
Does changing speed affect the audio pitch?
Audio speed changes along with the video, so faster speeds sound higher pitched and slower speeds sound lower, the same way any simple speed change works.
Will video and audio stay in sync at different speeds?
Yes, both change together.
Can I change speed for only part of the video?
No, the selected speed applies to the whole clip.
Does speeding up reduce file size?
Often, since the duration is shorter, though the exact result depends on the content.
What formats are supported?
MP4, MOV, AVI, WEBM, and MKV.
Is there a file size limit?
500MB.
Is this good for slow-motion sports or gaming clips?
Yes, the 0.25x preset is popular for that.
Last updated: 2026-07-13