ZipnifyFast image tools. Zero uploads.Compress images online
Make JPG, PNG and WebP files much smaller while keeping them sharp. Choose quality and size, then download.
- 100% private
- Free, no sign-up
- No file limits
- Instant results
Your files are processed on your device. Nothing is uploaded to any server.
How to use it
- Drop your images in the box above.
- Adjust the quality slider and, if you want, the maximum width.
- Download each compressed image. The tool shows how much space you saved.
How image compression works
Photos usually contain far more detail than a screen or an email needs. Compression removes information your eyes barely notice, and resizing very large pictures saves even more space. A quality of 70 to 80 percent normally looks identical to the original at a fraction of the size.
Need an exact size?
If a form asks for a photo under 100 KB or 200 KB, use compress to an exact size: you type the limit and the tool finds the best quality that fits.
Frequently asked questions
Is it really free and private?
Yes. Compression runs in your browser, so your images are not uploaded anywhere.
Does compressing reduce quality?
A little, by design. At 75 to 80 percent the difference is usually invisible.
Is there a file limit?
Files up to 40 MB each. You can process several at the same time.