How to compress an image without visible loss
A phone photo can weigh 4 or 5 MB, which is too much for an email, a web form or a page that has to load fast. This tool re-encodes your image at the quality you choose and, if you want, scales it down to a sensible maximum size. The image is never uploaded to a server: everything happens in your own browser.
- Drag in one or more images (or paste them with Ctrl+V).
- Set the quality: 70–80 is usually invisible on photos.
- If needed, cap the maximum side (1920 px is plenty for full screen).
- Download each file or grab everything in one ZIP.
Which format should you pick?
JPG is the best default for photographs. WebP is usually noticeably smaller than JPG at similar quality and every current browser supports it. PNG keeps logos and screenshots crisp and transparent; to slim it down the tool can reduce its colors to a palette, which saves a lot for a small loss. Need a different format? Use Image Converter; to change dimensions, use Resize Image.
Tips for the best result
- Always compress from the original: recompressing an already compressed image degrades it further.
- Reducing dimensions saves more weight than lowering quality, and for the web you rarely need more than 2000 px of width.
- If the result is the same size or larger, the tool keeps your original and tells you it was already optimized.
Frequently Asked Questions
Are my images uploaded to a server?
No. Compression runs in your browser on your own device; no file ever leaves it.
How much quality can I lose without noticing?
For photographs, 70–80% quality is usually invisible to the naked eye and cuts the size to less than half. Try it and compare with the original.
Why does my PNG barely get smaller?
PNG is a lossless format. Turn on “Reduce PNG colors” or convert it to WebP or JPG if you don't need transparency.
Can I compress several images at once?
Yes. Add as many as you like and download them together as a ZIP.