Compress image to 1 MB
Get any photo under 1 MB at the best quality that fits. 100% private: it never leaves your device.
- Processed on your device
- No upload, no sign-up
About this tool
A frequent upload cap for forms, job sites and support tickets. This tool finds the best quality that fits under 1 MB, and makes the image smaller in pixels only when quality alone isn't enough. It runs in your browser, so the photo is never uploaded anywhere.
Always at or under 1 MB
The result is never over the limit: it's at or under 1,000,000 bytes, or the tool tells you it can't get that small. Counting a KB as 1,000 bytes keeps it under the limit on sites that count 1,024 too.
What 1 MB looks like
- A 12-megapixel phone-size photo (4.2 MB) became 995.7 KB (995,711 bytes), 2728 × 2046 pixels.
- A 2400 × 957 photo (1.1 MB) became 991.9 KB (991,926 bytes), 2400 × 957 pixels, every original pixel kept.
- Both are detailed landscapes, the hardest kind to shrink. Portraits, documents and plain backgrounds keep more pixels at the same size.
Tips for 1 MB
- At 1 MB photos are hard to tell from the original on screen.
- Many phone photos are 3 to 5 MB: 1 MB is a big saving with little visible difference.
- Need it printed? Keep the original, and send the 1 MB copy only where the limit applies.
100% private
Most image compressors upload your photo to their servers. This one works inside your browser tab: the photo, which is often an ID photo or a signature, is never uploaded to Krisox or anyone else. Location data (EXIF) is removed along the way.
Questions
Will my photo be clear at 1 MB?
See the measurements above: at 1 MB the 12-megapixel test photo kept 2728 × 2046 pixels. Download it and zoom in before you submit.
Is 1 MB counted as 1,000,000 or 1,024,000 bytes?
Sites differ. The tool aims under the smaller figure, 1,000,000 bytes, so the result fits either way.
Which formats can I use?
JPG, PNG, WebP and iPhone HEIC photos. The result is a JPG (accepted almost everywhere) or a WebP.