Compress an image to 50 KB

The 50 KB target is already set. This is a severe budget, so expect a smaller image — that is the trade that keeps it looking clean.

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JPG, PNG, WebP and HEIC. Your file is processed on your device.

Your limit

Aiming for 50 KB or less.

How do I compress an image to 50 KB?

Add your photo below — the 50 KB target is already set — and download the result. Expect a smaller image, typically 600 to 900 pixels on the long edge: at this budget there is no setting that keeps a full-resolution photograph intact, and a clean small image beats a large damaged one. Crop to your subject first if you can; it is the single most effective step at this size.

Where the 50 KB limit comes from

Fifty kilobytes is almost always an official form. Examination boards, licensing bodies, visa and identity systems and public-sector recruitment portals commonly specify a photograph in the region of 20 to 50 KB and a signature at 10 to 20 KB. These numbers were chosen when storage was expensive and a form might be filled in over a dial-up connection, and they have stayed put because changing them means changing a system nobody wants to touch.

The saving grace is that these images are tiny when displayed. A form photograph is printed at postage-stamp size or shown in a small box next to your record. Nobody will ever view it at 4000 pixels wide, so the resolution you have to give up costs you nothing real.

Expect a smaller image, and that is correct

At 50 KB there is no combination of settings that keeps a full-resolution photograph intact. Anyone claiming otherwise is showing you a thumbnail. FileBelow will typically return something in the region of 600 to 900 pixels on the long edge, encoded at a quality that looks clean, rather than a large image that has been destroyed to fit.

This is the right call for the destination. A clean 800-pixel photograph reproduces perfectly well at the size these forms use it. A 4000-pixel photograph reduced to 50 KB shows visible blocking even in the small box, because the artefacts survive being scaled down.

Crop, then compress

At this budget cropping is not a refinement, it is the main event. Every part of the frame consumes bytes. If the form wants your face, crop to your face first — the background is costing you a substantial share of a very small budget, and removing it hands that budget back to the part that matters.

The same applies to a scanned signature, which is the other thing people are usually compressing at this size. Crop tightly to the ink. A signature scanned as a full A4 page is mostly empty paper, and empty paper is not free.

Mind the floor

Forms in this range frequently specify a minimum as well: a photograph between 20 KB and 50 KB, a signature between 10 KB and 20 KB. A file below the floor is rejected just as firmly as one above the ceiling, and people who have been told their file is too big often overshoot straight past it.

FileBelow aims as close to the ceiling as it can rather than as low as possible, which naturally keeps you inside a range like this. If your destination is one of the ones we have verified, pick it on the Destination tab and the floor appears as its own line in the checklist.

If it still will not fit

A PNG will not reach 50 KB at any useful size unless it is a simple graphic; convert it. If the form demands both 50 KB and a large minimum dimension, those requirements may genuinely conflict — FileBelow will say so and show you the dimensions that do work, so you can take that back to whoever set the rule.