Image Compressor
Compress and resize images locally in your browser — no upload, no quality leak.
How to use the Image Compressor
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Drop in an image.
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Set quality and size.
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Download the compressed file.
Compress images privately
Large images slow down pages. This compressor re-encodes JPG, PNG and WebP at a quality you choose and can resize them down, shrinking file size dramatically. Because it runs on the HTML canvas in your browser, your images never leave your device.
Key features
- Adjustable quality & max dimensions
- JPG, PNG and WebP
- Before/after size comparison
- 100% local — nothing uploaded
Frequently asked questions
Are my images uploaded to a server?
No — compression happens entirely in your browser using the canvas API.
Which formats can I output?
JPEG, PNG and WebP. WebP usually gives the smallest size at good quality.
Will it reduce dimensions too?
Yes — set a max width/height and the image is scaled down proportionally.