Compress one image or a whole batch to 40 KB each. Handy for passport photos, ID uploads and form photos. The tool sets the JPEG quality automatically to hit the size you need, then lets you save each file or all of them as a ZIP. Nothing leaves your device.
or drop images here or paste
This free tool reduces your pictures to 40 KB each, right inside the browser. Plenty of websites, government portals and application forms cap uploads at a fixed size, and a file that is even a little too large gets rejected. Instead of guessing with a quality slider, you add your photos and every one is brought to 40 KB at the best quality that still fits.
A 40 KB limit gives a photo more room than the tight 20 KB and 30 KB caps. Some recruitment and admission forms set it for the main photo while keeping the signature smaller.
40 KB is small enough for strict forms yet large enough to keep a face clear and easy to recognise. Most portrait sized images reach 40 KB with only modest quality loss, and the original width and height are usually kept. For an even smaller file, try compress to 30 KB. For higher quality with more room, use compress to 50 KB.
Add a single picture or a whole batch and each one is compressed to 40 KB on its own. Every file keeps its name with the size added, so they stay easy to tell apart. Download any image with its own button, or use the download button to save them all together in a ZIP when you have more than one. It works the same on a phone and a computer.
What is 40 KB good for? A clear application or ID photo that must stay under a moderate limit. The extra room over 20 to 30 KB shows in sharper detail.
Will 40 KB change my photo dimensions? Usually not. It tends to keep the original width and height and only sets the quality to fit 40 KB.
Need a different limit? You can also 5 KB, 10 KB, 15 KB, 20 KB, 20 to 50 KB, 25 KB, 30 KB, 50 KB, 100 KB, 150 KB, 200 KB, 300 KB, 500 KB, 1 MB and 2 MB. For any custom size, use the image size reducer.
Everything happens in your browser using your own device. Your images are never uploaded to a server, there is no account or sign up, and no watermark is added. Close the tab and nothing is left behind, which makes this a safe way to prepare photos, signatures and documents for upload.