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Set any target file size in KB and compress your image to match it. 100% free, no uploads, works entirely in your browser.
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This tool compresses your image to a specific target file size — most commonly 50KB — directly in your browser. Unlike standard image compressors that only offer a quality percentage slider, this tool runs an intelligent binary search algorithm: it tries different quality levels automatically until the output file size is as close as possible to your target. The entire process runs on your device. No file is ever sent to a server.
You can set any target between 5KB and 5000KB. The tool gets within approximately 10% of your target — so for a 50KB target you will typically receive an output between 45KB and 55KB, which is accepted by virtually all form upload portals.
Many online forms, government portals, and job sites enforce strict upload size limits. Indian government portals including SSC, UPSC, railway recruitment boards, and state PSC applications commonly require photos under 50KB and signatures under 20KB. Visa application portals, university admissions forms, and HR onboarding systems have the same constraints. This tool lets you hit that exact target without guessing at quality settings.
Can I compress an image to exactly 50KB?
The tool gets as close as possible — typically within 10% of your target. Exact byte-perfect compression is not possible because JPEG encoding has inherent variability, but for virtually all form upload requirements the result will be accepted.
Will the image quality be bad at 50KB?
It depends on the original image dimensions. A 400×400 portrait compressed to 50KB looks fine. A 4000×3000 photo compressed to 50KB will show artifacts. For best results, use the Resize Image tool first to reduce dimensions, then compress to your target size.
What formats are supported?
JPG, PNG, and WebP inputs are supported. The output is always JPEG since JPEG compression is the most effective for hitting specific file size targets. If you need format conversion, use the JPG to PNG or WebP Converter tools.
Is my image uploaded to a server?
No. Everything runs inside your browser tab. Your image is never transmitted anywhere. You can disconnect from the internet after the page loads and the tool will still work.
Why is my output larger than the target?
If your image is already smaller than the target, it is returned as-is without any compression applied. If you set a very low target on a large high-resolution image, resize the dimensions first using the Resize Image tool then try again.
Need to compress without a size target? Use the Compress Image tool with the quality slider. Need to reduce dimensions first? Try Resize Image. Converting formats? WebP Converter produces smaller files than JPG for the same quality.