What this tool does
Reduce an image toward 50KB without uploading it. Compare the closest result before downloading.
Practical guidance
For profile photos and forms, try a longest edge between 600 and 1000 pixels before lowering quality. Transparent PNG graphics may need WebP or a solid JPG background to approach 50KB.
Three simple steps
- Add an image from your device.
- Let the browser adjust quality toward 50KB.
- Review and download the closest result.
Private by design
Your images are processed in this browser. They are not sent to our server.
Browser processing limits
A target size is a best effort. Complex images may need lower quality or smaller dimensions.
Frequently asked questions
Can the result be exactly 50KB?
Sometimes, but encoded file sizes change in steps. The tool chooses the closest practical result.
Are transparent PNG files supported?
Yes, but transparency and complex graphics can make a 50KB target difficult without resizing.
Concrete input and output example
Input a 1600×1200 application photo at 740KB and target 50KB. A 48KB download leaves room for forms that round file size differently; compare facial edges before submission.
Browser compatibility notes
Reviewed against the implementation and required web APIs on 2026-08-12. Use a current browser where these APIs are available and verify important output on your device.
- Chrome / Edge (current desktop)
- Requires local decode, canvas, encoding, Blob download, and enough memory; verify the downloaded image.
- Firefox (current desktop)
- Uses the same standard local APIs; color rendering can differ slightly from Chromium.
- Safari (current desktop)
- Uses canvas and Blob downloads; available memory and codec behavior remain WebKit-controlled.
A tool-specific question
Should I lower quality or dimensions first?
For a severe target, moderate dimension reduction often preserves recognizable detail better than keeping a huge canvas at extremely low quality.