Compress image to 500 KB
Get any photo under 500 KB 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
Common for email attachments, marketplaces and website uploads with a half-megabyte cap. This tool finds the best quality that fits under 500 KB, 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 500 KB
The result is never over the limit: it's at or under 500,000 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 500 KB looks like
- A 12-megapixel phone-size photo (4.2 MB) became 497.4 KB (497,434 bytes), 1929 × 1447 pixels.
- A 2400 × 957 photo (1.1 MB) became 494.8 KB (494,769 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 500 KB
- At 500 KB most photos keep enough detail for a full screen.
- Smaller photos may fit without shrinking at all: the 2400-pixel test photo kept every pixel.
- For several photos in one email, compress each one: the limit usually applies to the total.
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 500 KB?
See the measurements above: at 500 KB the 12-megapixel test photo kept 1929 × 1447 pixels. Download it and zoom in before you submit.
Is 500 KB counted as 500,000 or 512,000 bytes?
Sites differ. The tool aims under the smaller figure, 500,000 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.