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PNG Compressor

Shrink PNG files in your browser. For small KB targets, FitToKB intelligently switches photos to WebP or JPG so the target is actually reachable.

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 PNG, upload it above. Because PNG is lossless, the browser ignores quality — so to hit small KB targets FitToKB intelligently switches photos to WebP/JPG and resizes graphics. Everything runs in your browser, free, with no upload.

Popular PNG targets

PNG to 20 KBPNG to 50 KBPNG to 100 KBPNG to 200 KBPNG to 500 KB

Frequently asked questions

Why can’t a PNG reach very small KB sizes?
PNG is lossless: the browser’s encoder ignores quality settings, so the only way to shrink a PNG is to reduce its dimensions. For photos, converting to WebP or JPG compresses far more — which FitToKB does automatically when you set a small target.
Does FitToKB keep PNG transparency?
Yes. When transparency is detected and a small target is needed, it converts to lossy WebP (which supports transparency) rather than JPG.
Is my PNG uploaded?
No. All processing happens in your browser; the file never leaves your device.
Can I compress many PNGs at once?
Yes — add multiple files and download them together as a ZIP.

Related tools

More free, private image tools from FitToKB.

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Hit any target size + dimensions + format in one click, with a pass/fail check.

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PNG Compressor

Shrink PNG files in your browser, or convert to a smaller format.

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JPG Compressor

Reduce JPG/JPEG photos to an exact KB target without visible loss.

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HEIC to JPG

Convert iPhone HEIC/HEIF photos to JPG — and resize to a size limit.

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PNG to JPG

Convert PNG to JPG with a white background and optional size cap.

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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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