How to get an image under 50 KB
Choose your image, keep the 50 KB limit, then select Prepare Image. Add width and height if your upload form asks for them. The download is checked against 50,000 bytes, a conservative decimal KB limit.
Compress Image to 50KB
Meet a 50 KB upload limit with automatic quality optimisation. Your image stays on your device.
Prepare My Image
100% on your deviceChoose an image or drag it here
Resize, convert or compress it in your browser.
JPG, PNG, WebP, HEIC or AVIF · up to 30 MBStill images: up to 24 MP; supported tiled HEIC/HEIF up to 50 MPProcessed on your deviceNo signupNo watermark
Your image never leaves your device. No uploads, no waiting in a queue.
Make a tight limit work
At 50 KB, detailed photographs may need smaller dimensions. Crop away unnecessary space first. Text and small logos can look clearer as PNG, but a PNG may not fit without reducing resolution.
What happens to image quality?
For ordinary-size JPG and WebP output, UploadMint tests several quality levels and keeps the highest tested quality that fits. Full-resolution large HEIC-to-JPG output keeps your selected quality and may stop if it cannot meet the cap. PNG is lossless, so a smaller PNG may require fewer pixels.
What if 50 KB is too small?
If you allow smaller dimensions, UploadMint searches for a usable resolution while respecting its quality and resolution safeguards. If dimensions must stay exact, it explains when the limit cannot be reached. Increase the limit or choose another format.
Your image stays with you
UploadMint processes supported images in your browser. Your image is not uploaded to a processing server, and no account is needed. Closing the page clears the working image.