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All prebuilt tools CROP VIDEO API

Crop Video to Any Social Aspect Ratio

Remove unwanted edges without stretching or upscaling the source video. Run the preset directly on this page or call the same agent-ready endpoint from your product.

Run this tool View API recipe
LIVE TOOL
Run crop video
Paste a public media URL, choose your settings and download the result here.

The URL must be reachable without a login and remain available while the job runs.

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BEFORE / AFTER

See what the tool changes.

A visual guide to the transformation. Run the live form above to generate and download the real result from your own media.

BeforeLandscape source
16:9 · full frame
AfterFocused crop
Ready
4:5 · top focus
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.

  • No stretching
  • Four social aspect ratios
  • Five focus anchors
What this preset does
  1. 01Read the source dimensions
  2. 02Calculate the largest matching crop
  3. 03Anchor the crop to the selected focus area
  4. 04Encode an even-sized MP4
Stable endpointPOST /api/v1/tools/crop-video
Live API request
{
  "inputs": [{ "id": "main", "url": "https://example.com/video.mp4" }],
  "options": { "aspect_ratio": "4:5", "focus": "top" }
}
Successful output example
{
  "result": {
    "output": {
      "filename": "output.mp4",
      "contentType": "video/mp4",
      "downloadUrl": "https://storage.googleapis.com/…"
    }
  }
}
CONSTRAINTS

Know the boundaries before you run.

Supported ratios are 9:16, 1:1, 4:5 and 16:9.
Crop removes pixels; it does not add padding.
The output never exceeds the source dimensions.
FAQ

About crop video

What is the difference between crop and resize?

Crop removes edges while preserving native detail. Resize scales to exact dimensions and can optionally add padding.

Can I keep a subject near the top of the frame?

Yes. Choose top focus to anchor the crop to the top edge.

Will the tool stretch the video?

No. It calculates a crop window that matches the requested ratio without distorting the source.

KEEP BUILDING

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