Video Speed Changer

Preview at the selected rate; export applies the speed change (12 formats).

Open or drop a video to start

Click or drop a local video here (processed in browser, not uploaded)

Video Speed Tool: Slow Motion and Fast Forward

An online video speed tool with nine speed steps from 0.25x to 4x. The speed is adjusted locally on your device while keeping audio and video perfectly in sync, and 12 output formats are supported - ideal for slow-motion and fast-forward effects.

Key features

Nine speed steps: 0.25x / 0.5x / 0.75x / 1x / 1.25x / 1.5x / 2x / 3x / 4x
Video and audio speed up or slow down together, staying in sync
All processed locally, fast with controllable quality

Use cases

Slow-motion close-ups, fast-forward recaps, and tuning the pacing of Douyin/Bilibili shorts.