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Image Compressor

Compress JPEG and WebP images locally

Runs locally in your browser

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Image is processed locally — nothing is uploaded to the server.

How it works

Compresses JPEG and WebP images in the browser using the Canvas API—reduce file size for web uploads without sending photos to a server.

Who it's for: Web designers, bloggers, and developers optimizing images for PageSpeed and email attachments

Adjusts quality and output format while showing before-and-after file size.

Keeps processing local—private photos never leave your device.

Supports download of the compressed file when you are satisfied with the preview.

How to use

  1. Upload a PNG, JPEG, or WebP image.
  2. Set quality (lower = smaller file, more artifacts) and choose output format (JPEG or WebP).
  3. Compare the preview and reported file sizes against the original.
  4. Click Download to save the compressed image, or recompress after tweaking settings.

Good to know

  • WebP often yields smaller files than JPEG at similar visual quality—test both for hero images.
  • PNG transparency is flattened when converting to JPEG—verify the preview if alpha matters.
  • Very large images may hit browser memory limits; resize dimensions first if compression fails.

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