Compress tools
8 free tools, all running in your browser. Make images and documents smaller — by quality, or to an exact size limit.
- Compress imageSmaller files, same look. Everything runs in your browser — images are never uploaded.
- Compress JPEGShrink JPG photos without visible quality loss. Processed locally — never uploaded.
- Compress PNGSmart palette compression keeps transparency and cuts file size. Runs entirely in your browser.
- Compress image to 20 KBAt 20 KB dimensions matter more than quality — the tool balances both so the result stays legible.
- Compress image to 50 KBThe usual limit for application photos: 50 KB holds a clear portrait if the framing is right.
- Compress image to 100 KBThe web's default upload cap. 100 KB is enough for a detailed photo if you start from the original.
- Compress image to 200 KBRoom for a genuinely detailed photo: 200 KB keeps product and listing images sharp at full width.
- Compress image to 500 KBA web-friendly budget: 500 KB carries a full-width page image with no visible compression.
About these compress tools
Compression tools exist because upload forms and web pages both have limits, and the two want different things. A form wants a file under a specific number of kilobytes and does not care how it looks; a web page wants the smallest file that still looks right at the size it is displayed. The tools here cover both: pick a quality level when you are optimising, or set a target size when a form is enforcing one.
Everything runs in your browser, which matters more for compression than for most tasks. The files people compress are photographs of themselves, scanned identity documents and screenshots full of account details — precisely the files worth not handing to a server. It also means there are no size limits or daily quotas, because the work happens on your own machine.