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Compress Image to 25 KB

Hit a 25 KB limit exactly — highest quality that still fits. Free, private, in your browser.

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JPG · PNG · WebP · HEIC · HEIF — processed privately in your browser

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Quick targets:

Your compressed images appear here. Nothing is uploaded — everything runs on your device.

Quick answer

To compress an image to 25 KB, upload your file above and FitToKB binary-searches the encoder quality to land at or just under 25 KB — never over. It runs entirely in your browser, free, with no signup and no upload.

25 KB is typically enough for a passport-style photo or a compact web image. FitToKB guarantees the result never exceeds 25 KB, so your upload form will accept it.

Nearby targets

TargetGood forGo
20 KBa small profile photo, exam thumbnail or signature scanCompress to 20 KB
25 KBa passport-style photo or a compact web imageThis page
30 KBa passport-style photo or a compact web imageCompress to 30 KB
← 20 KB 30 KB →

Frequently asked questions

How do I compress an image to 25 KB?
Upload your file to the tool above, keep the target at 25 KB, and download. FitToKB automatically finds the highest quality that stays at or below 25 KB.
Will the file go over 25 KB?
No. The engine only returns a result at or below 25 KB. If 25 KB is very small for the image, it lowers quality and, where allowed, resolution, and tells you if the target can’t be reached.
Does compressing to 25 KB reduce quality?
Some quality is traded for size, but FitToKB always uses the highest quality that fits 25 KB, so the loss is the minimum required to meet your target.
Is my image uploaded to a server?
No. Everything runs in your browser. Your file never leaves your device and nothing is stored.

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Compress your first image now

Free forever. No signup, no watermark, no upload. Everything runs on your device.

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