Image compressor
Shrink any photo's file size without leaving your browser. Pick the output format and quality level, see the savings live, and download — your photo is never uploaded to a server.
100% in your browser · nothing uploaded · no signup
Drop a JPG, PNG or WebP here
Why this image compressor
- Output as JPG, WebP or PNG — pick what fits your destination
- Quality slider with live preview of the result
- Shows the exact percentage saved
- Runs in your browser — no upload, no watermark, no signup
- Works on every major browser and on mobile
How it works
01
Drop a photo
JPG, PNG or WebP. Tap to pick a file or drag-and-drop.
02
Pick quality + format
Move the slider and choose the output format. The preview re-renders instantly.
03
Download
One click, one file. The original stays untouched.
Frequently asked questions
What quality level should I use?
0.7–0.8 is the sweet spot for photos — most viewers can't tell the difference, but the file is often 50–70% smaller. For web-only use, 0.6 with WebP is even smaller.
WebP, JPG or PNG — which should I pick?
WebP is smallest and modern browsers all support it — pick WebP for web. JPG is the safest fallback for emailing photos or printing. PNG keeps perfect quality but is much larger; use it only when you need transparency or pixel-perfect graphics.
Is my photo uploaded?
No. The compressor runs entirely in your browser. Nothing is sent to our server, nothing is stored.
Why does compression sometimes make a PNG bigger?
PNG uses lossless compression, so re-encoding can't shrink already-compressed pixels. If your file is small to begin with, compressing it further may not help.
Does this work for batch?
The current version handles one photo at a time. If you have hundreds of guest photos, Galeira compresses every upload automatically — try Galeira for batch.