Compress Image to 50 KB
Compress an image to 50 KB or less — the limit on many job portals, government application forms and document-upload systems. The tool automatically finds the highest quality that fits under 50 KB, entirely in your browser.
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Popular targets: 20 KB · 100 KB · 200 KB · custom size
How compress-to-size works
Upload forms set hard limits in kilobytes, but image editors only offer a quality slider — so hitting "under 100 KB" becomes trial and error. This tool does the search for you: it re-encodes the photo at several quality levels, measures each result, and keeps the highest quality that fits your target. If even strong compression can't reach it, the image is scaled down just enough and the search runs again.
Everything happens in your browser — the photo is decoded and re-encoded locally and never uploaded. Output is JPG for maximum compatibility or WebP for smaller files at the same quality. If your image is already under the target, it's passed through untouched.
Frequently asked questions
- How do I compress an image to a given size without losing quality?
- Strictly speaking, lossless isn't possible — reaching a fixed size means lossy compression. What the tool guarantees is the least loss that fits: it searches for the highest quality under your target. For a modest target the difference is usually invisible; for an aggressive one the tool also scales dimensions down to protect visual quality.
- Why did my image come out with smaller dimensions?
- If the target can't be reached at acceptable quality, quality alone isn't enough — a 12-megapixel photo simply doesn't fit in 20 KB. The tool then scales the image down just enough to hit the target, and tells you the new dimensions on the result.
- Should I choose JPG or WebP output?
- JPG opens everywhere — the safe choice for forms, portals and email. WebP is roughly a third smaller at the same quality and every modern browser renders it, which means higher quality within the same KB budget. If the upload form accepts WebP, take WebP.
- Are my photos uploaded during compression?
- Never. Decoding, the quality search and re-encoding all run in your browser; the tool works offline once the page is loaded. You can verify in the browser's network tab that no image data leaves your device.