50KB is the most common photo ceiling on online application forms — university admissions, job portals like India's SSC (which allows 20–50KB), bank recruitment systems, and countless registration sites. It's a comfortable target: almost any passport-style photo can fit in 50KB with barely visible quality loss, as long as the compressor is precise about it.
Precision is the point of this tool. Instead of a single quality slider you'd have to guess at, PixKB runs an automatic search across quality levels and returns the largest, sharpest file that still lands at or under 50KB — usually within a few hundred bytes of the limit, which is exactly what you want when quality matters.
or drop it anywhere in this box
JPG, PNG, WebP · processed locally on your device
Custom target, 2–10240 KB
Match the portal's rule
Converting PNG with transparency to JPG fills the background white.
One tap applies the exact dimensions, format, and file-size rule for the form. Verified presets are checked against the official source.
0 KB— KB
ORIGINAL—
RESULT—
Everything runs in your browser using the HTML5 Canvas — your photo is never uploaded to any server.
AD SLOT — BELOW TOOL
50KB targets with minimums
Watch for forms that state a range rather than a ceiling — "20KB to 50KB" is typical. A file that's too small gets rejected just like one that's too large. If your compressed result comes out below the form's minimum, switch the size rule to "At least target" and PixKB will pad the file safely with invisible JPEG metadata so it clears the lower bound without altering the image.
Frequently asked questions
My form says 20KB–50KB. Which do I aim for?
Aim near the top of the range — around 45–50KB — because more bytes means more image quality. PixKB's 'at or under' mode gets you as close to 50KB as possible without crossing it.
Does compressing to 50KB change my photo's dimensions?
Not unless it has to. Quality reduction comes first; dimensions only shrink if the target is impossible at the original size — and the tool tells you when that happens.
Which formats can I compress?
JPG, PNG and WebP input. Output is JPEG, which is what application portals expect at this size.