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Image Compressor

Compress images online for free. Reduce file size while maintaining quality. Supports PNG, JPG, WebP. No upload to server — 100% client-side.

Live·100% in your browser — no upload
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Drop images here or click to upload
PNG, JPG, WebP — multiple files supported

What is Image Compressor

The Image Compressor reduces the size of JPG, PNG and WebP images right in your browser, using the Canvas API to re-compress files while keeping high visual quality. You can upload several images at once, adjust the quality and download the lighter versions.

Images are never uploaded to a server: they stay on your device throughout, which matters when you compress personal or private photos.

How it works

  1. Drag one or more images into the upload area (or click to select them).
  2. Adjust the quality slider to balance size and sharpness.
  3. Press Compress All and compare the original size with the compressed one.
  4. Download the lighter images.

Frequently Asked Questions

Are my images uploaded online?
No. Compression happens entirely in the browser with the Canvas API: files never leave your device.
How much can I reduce the size without ruining quality?
It depends on the image, but for photos a quality around 70-80% often halves the size or more with minimal visible difference.
Which formats can I compress?
JPG, PNG and WebP. You can upload multiple files and compress them all together.

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