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JPG Compressor

Compress JPG and JPEG photos to an exact KB target — highest quality that still fits. Free, private, in your browser.

No upload Free forever No signup

Drag & drop images, or browse

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

Format
Quick targets:

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

Quick answer

To compress a JPG, upload it above and set a target size in KB (or just download a smaller version). FitToKB binary-searches the JPEG quality to hit your target without exceeding it — free, in your browser, no upload, no signup.

Popular JPG targets

JPG to 20 KBJPG to 50 KBJPG to 100 KBJPG to 200 KBJPG to 300 KB

Frequently asked questions

How do I compress a JPG to a specific KB size?
Upload your JPG, type the target in KB, and FitToKB finds the highest quality that fits — for example exactly under 50 KB.
Is the JPG uploaded anywhere?
No. Compression runs entirely in your browser; the file never leaves your device.
Will my JPG lose quality?
JPG is lossy, but FitToKB always uses the highest quality that meets your target, so loss is minimal.
Can I compress many JPGs at once?
Yes — add multiple files and download them together as a ZIP.

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JPG to WebP

Modern WebP output for the smallest files at the same quality.

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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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