100% private — processing happens on your device, nothing is uploaded.
Works best with short clips (Reels, TikTok, Stories). Very large files may be slow on mobile.
By using this tool, you agree to our Terms of Use
0.5x for emphasis, 1.5x–2x for quick tutorials.
Pitch-corrected tempo when possible so speech stays listenable.
Speed changes run locally in your browser.
Creators use speed ramps for hooks and demos without a full editor.
Pick a factor, process on-device, download MP4.
Trim first if you only want speed on a section—export that range, then speed it.
Process only files you own or may edit.
Select a local file.
0.5x, 0.75x, 1.25x, 1.5x, or 2x.
Click Change speed and download.
Extreme slow motion looks best from higher-fps sources. Fast speech may need captions afterward.
Private browser processing only.
Changing speed shortens or lengthens duration while keeping the same frames.
We adjust audio tempo to match video speed so lipsync stays usable for moderate factors.
FAQ
Quick answers to the most common questions about this tool.
Yes—choose 0.5x or 0.75x.
Tempo is adjusted to match the new speed.
Yes—local only.
MP4.
This tool offers up to 2x and down to 0.5x.
Yes for short clips.
~200 MB recommended.
Trim the section first, then change speed.