All prebuilt tools CHANGE VIDEO SPEED API

Change Video Speed

Speed video up or slow it down from 0.25x to 4x with pitch-corrected audio. Run the preset directly on this page or call the same agent-ready endpoint from your product.

LIVE TOOL
Run change video speed
Upload a file or paste a media URL, choose your settings and download the result here.
or

Paste a public HTTP(S) URL. KinoPipe deletes direct uploads after one day.

This preset has no required options.

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BEFORE / AFTER

See what the tool changes.

A real example: the after side is the unedited output of a KinoPipe job. Run the live form above to generate the same result from your own media.

BeforeOriginal pace
00:09 · 1×
AfterSped up
Ready
00:04.5 · 2×

Demo footage: public-domain timelapses (Bureau of Land Management, Oregon · NASA SVS). Processed by the same pipeline the API and MCP tools call.

BUILT FOR AUTOMATION

Useful defaults, typed options.

The tool slug stays stable while your agent supplies named media inputs and a narrow set of documented options.

  • 0.25x to 4x range
  • Audio stays natural
  • One typed request
What this preset does
  1. 01Retime video frames
  2. 02Stretch audio with pitch correction
  3. 03Keep A/V in sync
  4. 04Encode a delivery-ready MP4
Stable endpointPOST /api/v1/tools/change-video-speed
Live API request
{
  "inputs": [{ "id": "main", "url": "https://example.com/video.mp4" }],
  "options": { "factor": 2 }
}
Successful output example
{
  "result": {
    "output": {
      "filename": "change-video-speed-output.mp4",
      "contentType": "video/mp4",
      "byteSize": 437021,
      "downloadUrl": "https://cdn.kinopipe.com/…"
    }
  }
}
CONSTRAINTS

Know the boundaries before you run.

Factor is bounded between 0.25 and 4
FAQ

About change speed

Does the audio pitch change?

No. The audio is stretched with pitch correction, so voices stay natural at any supported factor.

Can I slow a video down?

Yes. A factor below 1 slows the video; 0.5 doubles its duration.

KEEP BUILDING

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