Compress images
Smaller JPG, PNG and WebP with a live before/after comparison.
Runs on your device — never uploaded
Drop files here or click to browse
Accepts .jpg, .jpeg, .png, .webp, .avif, .gif, .bmp, .heic, .heif. Nothing is uploaded.
How to compress images
- Add images
Drop JPG, PNG or WebP files, as many as you want.
- Set the quality
Slide between smaller files and higher fidelity. The preview and size update as you go.
- Download
Save the compressed images or a ZIP of all of them.
Frequently asked questions
How much smaller will they get?
Typically 40–80% for JPG at quality 75–80, and 10–40% for PNG (lossless). Results depend on the source.
Is PNG compression lossless?
Yes. PNGs are optimised with Oxipng, which changes nothing about the pixels.
Is it really offline?
Yes. After the page loads, you can disconnect and keep compressing.