Image Compressor
Compress and resize images locally in your browser — no upload, no quality leak.
How to use the Image Compressor
Drop in an image.
Set quality and size.
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.