Image converters · OnDevice
Compress a photo to 20 KB without uploading
Use this page when a form or profile field only accepts a very small image — 20 KB. The tool lowers JPEG quality first, then resizes the picture if it still will not fit. That is enough for a simple thumbnail; a detailed photo will look softer.
No upload. Files never leave your device.
Drop images here
JPEG, PNG, WebP, AVIF, GIF, BMP, and TIFF are welcome. Multiple files are fine. Output is always JPEG so the size cap can be met.
Results
No files yet. Nothing is sent to a server when you add them.
When a 20 KB cap comes up
Twenty kilobytes is a tight cap. A recent phone photo is often several megabytes, so this page will usually shrink the pixel dimensions, not only the quality setting. If you can crop to the face or the subject first, you will generally get a clearer result than sending a full-resolution frame through the compressor.
This is the kind of limit you see on older application forms, some account icons, and other fields that expect a thumbnail rather than a print-quality picture. Sites do not all use the same figure, so this page does not speak for a particular organization — it simply keeps going until the file is under 20 KB. Work stays in the browser; nothing is uploaded.
Frequently asked questions
Does this upload my photo?
No. Compression runs in a Web Worker on your device. Nothing is sent to a conversion server.
Why does a 20 KB photo look softer than the original?
Because 20 KB is a small budget for a detailed picture. The page first searches JPEG quality, then reduces the width and height if a high-compression JPEG is still too large. The result is meant to fit a thumbnail-sized field, not to match a full-size print.
Should I crop the photo before I compress it?
Yes, if the form wants a headshot or a small icon. Cropping away extra background leaves more of the 20 KB budget for the subject, which usually looks clearer than shrinking the entire original frame.
Is the output always JPEG?
Yes. JPEG is the practical format when you need a file this small. A PNG of the same picture is often larger than 20 KB.
Can I compress many files at once?
Yes. Add a batch, compress, then download a ZIP. Each file is brought under 20 KB on its own.