🔒 100% Private — Files Never Leave Your Device
Image Compressor
Shrink JPG and PNG files with a quality slider. See before and after sizes for every image.
✓ Unlimited files ✓ No size limit ✓ Works offline ✓ No watermarks
Drop JPG or PNG files here or click to browse
PNG files are output as compressed JPG (transparency → white)
80%
Need server-side compression for WordPress?
ShortPixel optimizes images in bulk on your site with minimal quality loss.
Frequently Asked Questions
Is this compressor really free?
Yes. No limits, accounts, or watermarks. Your CPU does the work in the browser.
Are my photos private?
Yes. Files never leave your device, so we cannot access them.
What does before / after mean?
Before is the original file size. After is the new JPEG size at your chosen quality — shown on each row.
Why JPG output for PNG uploads?
JPEG gives strong size control via the quality slider. PNG lossless compression in-browser rarely shrinks photos much.
Will I ruin print quality?
At high quality (90–100%) changes are usually invisible on screen. For print, keep quality high or keep originals.