Compress an image to 40KB
Some application portals and profile uploads set a 40 KB limit. Drop your photo here and the compressor finds the highest JPG quality that stays under 40 KB, scaling the picture down only when it has to. Nothing is uploaded.
How to use the Image Compressor
- 1Drop one or more images (JPG, PNG, WebP or AVIF) onto the box, or tap it to choose files.
- 2Choose Quality to set the level yourself, or Target size to enter the file size you need, such as 100 KB.
- 3Pick the output format and, if you like, a maximum width. WebP usually gives the smallest file.
- 4Download each image, or all of them as one ZIP file. Everything happens on your device.
Frequently asked questions
How do I reduce a photo to 40KB without losing the face detail?
Crop to the face and shoulders first, so the pixels go where they matter, then compress. This page keeps up to 1,000 pixels of width and lowers quality step by step until the file fits.
Why is my 40KB image a few KB smaller than 40?
JPG quality changes in steps, so the tool picks the highest step that stays under 40 KB. Most portals accept anything up to the limit, so that's fine.
Can I get a 40KB image in PNG format?
Usually not for photos: PNG is lossless and can't lower its quality. If the portal accepts JPG, keep JPG; if it insists on PNG, the tool shrinks the dimensions instead.
Related free tools
All tools- Image CompressorShrink JPG, PNG and WebP files, or hit an exact size like 100 KB.
- Compress image to 20KBCompress an image to 20KB
- Compress image to 50KBCompress an image to 50KB
- Compress image to 100KBCompress an image to 100KB
- Compress image to 200KBCompress an image to 200KB
- Compress image to 1MBCompress an image to 1MB
- Compress JPGCompress JPG images online
- Compress image to 30KBCompress an image to 30KB
- Compress image to 150KBCompress an image to 150KB for websites
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