Change Video Speed
Turn clips into timelapses (up to 8×) or smooth slow-motion (down to 0.25×). Frame timing is rewritten on the fly with hardware encoding.
0.25× – 8× range
Chips for the common speeds plus a free numeric field for anything in between.
Real retiming
Pixlane rewrites presentation timestamps and re-paces frames — not a playback trick, the exported file really is faster or slower.
Local processing
Everything happens on your device via WebCodecs.
How to change video speed
- Open the tool and add your video. Open Pixlane Change Video Speed and drop your MP4 or MOV (or choose a file). It loads instantly and is processed on your device — nothing is uploaded.
- Adjust. Pick a playback speed, from 0.25× slow motion up to 8× timelapse.
- Export and download. Click Apply speed and download the result — free, no watermark, no signup.
Frequently asked questions
What happens to the audio?
At 1× audio is kept untouched. At other speeds the audio track is removed in this version — pitch-correct audio retiming is on the roadmap.
Does slow motion interpolate new frames?
No — frames are re-paced. For 0.5× on 30 fps footage you get smooth 15 fps motion; filming at 60 fps gives the best slow-mo.
Maximum speed?
8× in one pass; run the result again for more.
Can I make a timelapse?
Yes — pick 2×–8× to compress long footage into a short timelapse; the exported file is genuinely re-timed, not just played back faster.
Does changing speed change the resolution?
No. Only frame timing is rewritten — resolution and framing stay the same.