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Compress image

Try to reduce an image file size by adjusting format and quality.

Processing happens in your browser; we do not upload your file.

ActiveImageFree
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About this tool

Compress image tries to reduce an image file size with browser canvas by changing format and quality without uploading the file.

How to use

  1. Select a PNG, JPG/JPEG or WebP image.
  2. Review the original size and dimensions.
  3. Choose JPG, WebP if available, or PNG when you need to preserve sharpness/transparency.
  4. Adjust quality for JPG or WebP.
  5. Compress the image and check whether it reduced or increased before downloading.

Use cases

  • Lower the weight of a photo before sharing it.
  • Try WebP for website images.
  • Generate a lighter JPG version when transparency is not needed.

Limits

  • Reduction is not guaranteed: it depends on the original format, content and browser.
  • It does not resize images; original dimensions are preserved.
  • Maximum image size: 15 MB.

Privacy

Processing happens in your browser — we don't upload your files.

Common errors

  • A damaged image or one the browser cannot decode.
  • The final file can be larger when the chosen format is not suitable for that image.
  • WebP may be unavailable as output in some browsers.

Technical notes

  • Export uses canvas.toBlob.
  • PNG has no quality control and may not reduce file size.

Related tools

Technical details
ID
image-compressor
Slug
/en/tools/compress-image
Backend
Not required
AI
Not required
API
Planned