Compress an image to 50 KB
A common limit for ID photos, exam forms and lightweight web pages.
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How it works
Add your images
Drag and drop, paste, or pick files. They upload over an encrypted connection.
Pick a quality or a target size
Use the quality slider, or tell it exactly how many KB or MB you need.
Download
Save each file, or grab them all at once as a ZIP.
50 KB gives a bit more room than the tightest limits, so most ordinary photos reach it with only a moderate quality reduction and little to no resizing. This tool tries quality first, and only shrinks the image's dimensions if quality alone can't get small enough.
If you're preparing a photo for a specific form, check whether it also sets a minimum file size, a required pixel size, or a particular background. This tool controls file size and, optionally, pixel dimensions, but it doesn't check against any one organisation's exact rules.
No sign-up is needed and the results are deleted within one hour, so you can try different crops or settings as many times as needed. If the result still looks soft, check whether the source photo itself is already heavily compressed; recompressing an already-compressed JPEG rarely improves on the original. It's worth checking the result at actual size rather than zoomed in, since minor softness that's visible up close often disappears entirely at normal viewing size.
What a 50 KB picture can look like
50 KB is enough for a clean JPEG of around 600 by 800 pixels, or somewhat more if the picture is calm. That covers a profile photo, a product thumbnail, a small blog illustration and nearly every photo an application form asks for. A phone photo at full size is a different matter. It will be scaled down to fit, and the output dimensions are shown next to the result so you know what you are getting.
A file-size limit and a pixel size are separate rules
Many forms set both: a maximum of 50 KB and, for example, a width of 200 pixels and a height of 230. A file can pass one rule and fail the other. Enter the pixel size in Resize first, with the fit on Fill and crop if the shape of your photo differs from the shape the form wants. The target size is applied after that, to the picture at its final dimensions.
Some forms also set a floor, such as between 20 and 50 KB. A small, plain photo can come out under that floor. If it does, raise the pixel dimensions slightly or pick a larger target, and the file grows with them.
Scans and screenshots: use the right format
A scanned certificate or a screenshot of a receipt is mostly flat background with sharp text. JPEG handles that badly at small sizes and leaves grey smudges around the letters. Set the format to PNG or WebP before compressing and the text stays crisp at the same 50 KB. For a scan that will only ever be read, switch it to black and white in the editor as well. With no colour to store, more of the 50 KB goes to the text itself.
Frequently asked questions
Why is my 50 KB target not being reached?
Very large or highly detailed originals sometimes need resizing as well as a lower quality. The row shows the smallest size actually reached.
Does this work for scanned documents?
Yes, though text-heavy scans compress better as PNG than JPEG since they have large flat areas.
Can I set a minimum as well as a maximum size?
Not in this release; this tool only limits the maximum size.
What's the fastest way to get under 50 KB?
Crop out anything not needed first, then compress; a smaller photo needs less compression to hit the same size.
Is 50 KB enough for a passport-style photo?
Yes, with room to spare. A head-and-shoulders photo at the dimensions forms normally ask for sits comfortably under 50 KB at high quality.
Why did my photo come out well under 50 KB?
The target is a ceiling. The search stops at quality 92, because going above that adds bytes you cannot see, so a small or plain picture may finish below the limit.