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Free tools · Images

Resize image

Set the longest side. Proportions are kept, nothing is stretched, nothing is enlarged.

Free · no sign-up · JPG, PNG and WebP are processed on your device · other formats are uploaded, deleted after 24 hours.

How to resize image

  1. Drop the image.
  2. Type the largest width and height it may have.
  3. Press Resize and download.

What happens to your file

The image is scaled down so it fits inside the box you gave, keeping its proportions — a 4000 × 3000 photo with max 1600 × 1600 becomes 1600 × 1200.

It is never enlarged: upscaling invents detail that is not there, and every viewer’s zoom does the same job without pretending. If your image is already smaller, you get it back unchanged and the page says so.

JPG, PNG and WebP are resized on your device; other formats take the cloud path on this page.

Questions

How do I resize to exact dimensions?

Give both a width and a height in the same ratio as the image. To force a different ratio you need a crop — use Crop image.

Which size for a profile picture?

800 × 800 is more than any service displays; 400 × 400 is typical. Larger only wastes bytes.

Why is the file not much smaller?

Fewer pixels help, but the encoder quality decides more. Run Compress image afterwards with a size target.

Do this in code

curl -X POST https://api.fylane.dev/v1/jobs \
  -H "Authorization: Bearer $FYLANE_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "file_id": "<file id>",
    "operation": "image.resize",
    "options": {}
  }'

The same operation, image.resize — Resize to your dimensions — inside, cover or fill; never enlarged. Answers WebP unless `format` says otherwise. Upload first with the quickstart; every option is on the operations page. 500 free credits a month, then $5 per thousand.