Compress images without uploading them
Cut image size by up to 80% with no visible difference — compress, convert and resize. Everything runs in your browser, so your files never leave your device and there is no upload to wait for.
or drop them anywhere here
JPG · PNG · WebP · AVIF · GIF · up to 25 MB per image
How this image compressor works
LeanPix compresses images entirely inside your browser — no server upload, no waiting, no daily limit. Drop your images above and they're processed locally on your device, then downloaded straight to your disk.
Most compressors upload your file to their server first. LeanPix skips that step entirely: there is no server that receives your images, so you can disconnect from the internet after the page loads and keep working.
It's free with no sign-up, no watermark, and no card required. The only limits — 25 MB per image, 30 per batch — are your browser's memory, not a service cap.
Tools
Why LeanPix
Files stay on your device
All processing happens in-browser via Web Workers.
Instant results
No upload, no server queue.
Big batches
Compress up to 30 images and download one ZIP.
Convert and resize
Between JPG, PNG, WebP and AVIF, with resizing.