Resize image to 20 KB
For strict upload portals, exam forms, and profile documents.
Resize an image to exact KB
Upload images, choose target size, and download files ready for forms.
No signup
No watermark
Files stay on your device
Popular upload fixes
Built for forms that reject your file.
Start with image and signature limits. PDF tools are on the way.
Signature resize
Fit scanned signatures into common 10 KB, 20 KB, and 50 KB limits.
ID photo background
Best for simple white backgrounds that need a quick color change.
More free tools
More tools. All browser-side.
Every tool runs locally in your browser. No files leave your device.
Image Compressor
Compress JPG, PNG, and WebP files with target KB presets.
Bulk Compress
Upload multiple images and download optimized files one by one.
Format Converter
Convert images between JPG, PNG, and WebP using browser Canvas.
Resize Image
Scale to exact pixel dimensions for forms, profiles, and IDs.
JPG to PDF
Turn one or many images into a PDF without uploading files.
PDF Compressor
Compress image-heavy PDFs in-browser after the image tools rank.
Privacy first
Your file stays in your browser.
No upload queue
Images are processed locally, so there is no server waiting line.
Instant preview
See file size, output dimensions, and a preview before downloading.
Clear limits
Browser memory still matters, so very large files may need a smaller target.
FAQ
Common questions.
Is my file uploaded to a server?
No. All processing happens in your browser using the Canvas API. Your file never leaves your device and is never sent to any server.
Can I compress a PNG to an exact KB size?
PNG is a lossless format, so quality cannot be reduced like JPG. We reduce the file size by scaling down dimensions. The result will be close to the target, but exact size is not guaranteed. For pixel-perfect size control, use JPG or WebP output instead.
Why does the compressed image look different?
Aggressive compression reduces quality. If the result looks too degraded, raise the target KB or increase the quality slider before downloading.
Is there a file size limit?
There is no server-side limit. Files are processed entirely in your browser. Very large files (over 20 MB) may slow down processing. For large batches, process in smaller groups.
Does the background tool use AI?
No. The background tool uses a color threshold to replace near-white pixels. It works best on clean studio photos with a plain white or light background. Complex backgrounds or soft shadows may not be fully replaced.
Keep it free
Support UploadReady
If this tool saved your time, you can buy us a coffee. It helps keep free tools fast, private, and available for everyone.
Buy us a coffee