Change Video Speed

How to Change Video Speed Online

1. 1

   Select your video

   Drop your video file or click to browse. MP4, WebM, MOV, AVI, and MKV are all supported.

2. 2

   Choose a speed

   Pick a preset (0.25x–4x) or drag the slider for a custom value between 0.25x and 4x in 0.05x increments.

3. 3

   Click "Change Speed"

   Processing happens entirely in your browser. Audio pitch and duration are adjusted automatically to stay in sync.

4. 4

   Preview and download

   Preview the speed-adjusted result and download your video. Nothing leaves your device.

Speed Presets Explained

Slow motion (0.25x–0.75x) stretches each frame in time, making fast action easier to follow. The output video will be longer than the original.

Speed up (1.5x–4x) compresses the video duration. A 10-minute video at 2x becomes 5 minutes. Great for time-lapses, tutorials, and long recordings you want to watch faster.

Custom speed lets you dial in any value between 0.25x and 4x in 0.05x increments using the slider. Useful when a preset doesn't match your exact needs.

Frequently Asked Questions

Is my video uploaded to a server when changing speed?

No. Clipiv processes your video entirely in your browser. Your files never leave your device — no upload, no server, complete privacy.

What speed range is supported?

You can slow down your video to 0.25x (quarter speed) or speed it up to 4x (four times faster). Use the preset buttons for common speeds or the slider for fine-tuned control. If you only need to change the speed of a specific segment, trim the clip first for faster processing.

Does changing speed affect the audio track?

Yes. The audio pitch and duration are adjusted to match the new speed. At 2x speed, audio plays twice as fast; at 0.5x, it plays at half speed. This keeps the video and audio in sync.