Compress image to 50KB
The passport-photo and ID-upload standard — hit exactly, on your own device, with the best quality 50KB can carry.
Drop your image here
or
JPG, PNG, WebP, HEIC, SVG — any size, no upload
🔒 Files never leave your device — everything runs in your browser.
50KB is the signature limit of official portals: passport and visa photo uploads, exam registrations, banking KYC forms, and government services across South Asia and beyond. It is small enough that naive compression turns faces into smudges — and a face that fails verification means the whole application bounces. This tool searches quality levels first and reduces dimensions only as a last resort, so a portrait keeps the sharpness the reviewer needs.
Privacy matters double at this size, because what gets compressed to 50KB is almost always an identity document or a face. Nothing here is uploaded — the compression runs entirely in your browser, and the result lands straight back on your device with your file's original name.
How it works
- Drop your file
Any common format, any size. Nothing is uploaded — the tool runs in your browser.
- Choose quality or size
Pick a quality preset, set an exact KB target, or switch the output format — tuned for compress image to 50kb.
- Download
Your converted file is ready on your device — nothing to wait for, nothing to delete from a server.
Frequently asked questions
Is 50KB enough for a passport or ID photo?
Yes — portals set that limit around their own display sizes, which are typically 200 to 600 pixels. At those dimensions 50KB holds a clear, sharp portrait; the tool finds the best quality that fits before reducing size, so faces stay recognizable.
My portal also demands specific pixel dimensions — does this help?
This tool guarantees the file SIZE; it reduces dimensions only when needed to fit. If your portal demands exact pixels (like 350×450), crop or resize to those dimensions first in any editor, then compress here — the result keeps your dimensions if 50KB allows it.
Is my ID photo uploaded anywhere?
No. The entire compression happens in your browser on your own device — there is no server that could receive, log, or store your documents. That is the point of this site.
Is my file uploaded to a server?
No. ConvertUno runs entirely in your browser on your own device. Your file never leaves your computer or phone — there is no upload at all.
Is it really free, with no watermark?
Yes. Processing happens on your device, so serving you costs us almost nothing — no watermark, no account, no file-size limit, no daily quota.