Compress JPEG images
Photos straight from a camera carry far more data than a screen can show — shrink them on your own device and keep the look.
Drop your image here
or
JPG, PNG, WebP — any size, no upload
🔒 Files never leave your device — everything runs in your browser.
JPEGs from phones and cameras are encoded generously — great for editing headroom, wasteful for everything else. A 4 MB photo posted to a website, attached to an email, or uploaded to a form does the same visual job at 600 KB. The difference is pure transfer time, storage, and failed "file too large" checks.
ConvertUno re-encodes your JPEG at the quality you choose — or to an exact KB budget with our guaranteed-fit search — and strips the metadata (camera model, GPS location, timestamps) that inflates files and leaks privacy. Nothing uploads; photo after photo compresses as fast as your device can crunch them.
How it works
- Drop your file
Any common format, any size. Nothing is uploaded — the tool runs in your browser.
- Choose quality or size
Pick a quality preset, set an exact KB target, or switch the output format — tuned for compress jpeg.
- Download
Your converted file is ready on your device — nothing to wait for, nothing to delete from a server.
Frequently asked questions
What quality setting should I pick?
Balanced is the sweet spot for photos going on the web or into chats — typically 60–75% smaller with differences you need a magnifier to find. Use High for prints and portfolios, Smallest when the recipient matters more than the pixels.
My upload form says "max 500 KB" — can I hit that exactly?
Yes — type 500 into the target field and the result is engineered to land under it, first by tuning encode quality, and only reducing dimensions if the target is very aggressive. No more trial and error.
Does compressing remove my photo's location data?
Yes, automatically — the re-encode strips EXIF metadata including GPS coordinates. Smaller file, and the coffee shop you photographed your breakfast in stays your business.
Is my file uploaded to a server?
No. ConvertUno runs entirely in your browser on your own device. Your file never leaves your computer or phone — there is no upload at all.
Is it really free, with no watermark?
Yes. Processing happens on your device, so serving you costs us almost nothing — no watermark, no account, no file-size limit, no daily quota.