Change Video Speed
Turn clips into timelapses (up to 8×) or slower playback (down to 0.25×). Frame timing is rewritten during export with available browser encoding.
0.25× – 8× range
Choose a common speed chip or enter a supported value within the displayed range.
Exported retiming
Pixlane rewrites presentation timestamps and re-paces available frames so output duration follows the selected speed. Encoder and audio support vary by browser and input.
Scoped local processing
Compatible retiming runs on your device through available WebCodecs capabilities. Supported video contents are not uploaded for processing.
How to change video speed
- Open the tool and add your video Select a compatible file for Change Video Speed.
- Review and adjust Pick a playback speed, from 0.25× slow motion up to 8× timelapse.
- Export and download Review the exported result from Change Video Speed, then download it.
Frequently asked questions
What happens to the audio?
Compatible AAC audio can be kept and timestamp-retimed in MP4 output. Other codecs, containers, or browser encoder paths can omit audio, so check the exported file for your input.
Does slow motion interpolate new frames?
No new motion frames are synthesized. The export re-times available source frames, so apparent smoothness depends on the source frame rate, chosen speed, browser encoder, and playback device.
Maximum speed?
8× in one pass; run the result again for more.
Can I make a timelapse?
Yes — pick 2×–8× to shorten the output duration by re-timing available source frames. Apparent smoothness and audio support depend on the input and browser path.
Does changing speed change the resolution?
When no resize or crop operation is added, the tool targets the source display dimensions, rounded as required by the encoder. Check the exported file metadata for your input.