Compress PNG to 100 KB

Reduce any PNG image to 100 KB or less, free and private — no sign-up, no watermark.

This tool runs entirely in your browser. Your file never leaves your device — nothing is uploaded to our servers, so confidential documents and photos stay private.

Compress PNG to 100 KB online — free and exact

Need a PNG image under 100 KB? This free tool automatically reduces your PNG until it fits within 100 KB, then lets you download it — tuning quality and dimensions in your browser to give you the sharpest image that still meets your 100 KB target. 100 KB is a common ceiling for profile photos, KYC document images, scholarship forms and admission portals. Compress your PNG to 100 KB here and upload it without the form bouncing it back.

How to compress png to 100 kb

1
Drop your PNG into the box above (or click to browse). It is processed entirely in your browser — nothing is uploaded.
2
Press "Compress to 100 KB". The tool tunes quality and size automatically to fit within 100 KB.
3
Check the achieved size shown once compression finishes.
4
Download your compressed PNG and upload it to your form, profile or listing.

Frequently asked questions

How do I compress a PNG to 100 KB?+

Upload your image above and click "Compress to 100 KB". The tool automatically reduces the dimensions of your PNG until it fits within 100 KB, then offers it for download — all in your browser, nothing uploaded.

Is compressing PNG to 100 KB free?+

Yes — completely free, no watermark, no sign-up and no daily limit.

Will the image quality drop at 100 KB?+

PNG is lossless, so to reach 100 KB the tool reduces the pixel dimensions rather than adding artefacts. The image stays crisp at its new size. For smaller files at full resolution, try the JPG or WebP version of this tool.

Is it safe to compress private photos to 100 KB here?+

Yes. Everything runs in your browser — your PNG never leaves your device and is never sent to any server, so ID and passport photos stay private.

What if my PNG can't reach 100 KB?+

Very large or detailed images may not reach 100 KB while staying usable. The tool then produces the smallest usable version and shows the achieved size — crop the image or pick a slightly larger target to get under 100 KB.