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Image Compressor

Compress JPEG, PNG, and WebP images entirely in your browser — no upload, no server, 100% private.

Drop an image here or click to browse

Supports JPEG, PNG, WebP

How It Works

Your image is loaded into an HTML Canvas element entirely in your browser. The canvas re-encodes the image at your chosen quality level using the browser's built-in codec — no data ever leaves your device. The result is a new file that is smaller but visually similar to the original.

Tips for Best Results

  • JPEG / WebP: Quality 70–80% gives the best size-to-quality balance for photos.
  • PNG: PNG is lossless — the quality slider does not apply. Use WebP or JPEG to reduce PNG file sizes.
  • WebP: WebP consistently outperforms JPEG and PNG for both quality and file size.
  • Transparency: Only PNG and WebP preserve transparency. Converting to JPEG will fill transparent areas with white.
  • 100% free — no account needed
  • Runs in your browser
  • Nothing is uploaded

Frequently asked questions

Is Image Compressor really free?

Yes. Image Compressor is completely free on PureBrowser — every feature, with no account, no trial, and no credit card.

Does Image Compressor upload my data?

No. Image Compressor runs entirely inside your browser, so anything you type, paste, or open stays on your own device.

Do I need to sign up or install anything?

Neither. There is no account and nothing to download — open the page and Image Compressor is ready to use on desktop or mobile.

Does Image Compressor work offline?

Once the page has loaded, yes. All of the processing happens locally in your browser, so it keeps working without a connection.

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