Compress Image to 40 KB
Shrink any photo to under 40 KB, right in your browser.
or browse filesdrop images here or paste · see all compressors
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Shrink any photo to under 40 KB, right in your browser.
or browse filesdrop images here or paste · see all compressors
Open your picture and it is compressed to less than 40 KB, at or under the cap, automatically. The tool finds the highest quality that stays below the cap and reduces the dimensions only when a very large photo cannot fit otherwise. The size card shows the original size, the new size and the saving, and the preview is the actually compressed picture, so there are no surprises after download.
Application forms, ID picture fields and job portals set the photo limit anywhere between 20 and 50 KB, and 40 KB is a common choice. It is a comfortable number: at the dimensions those forms expect, a 40 KB JPG keeps a face sharp, clothing detail visible and skin tones natural. A phone photo of several megabytes comes out as a clean, portal ready file under the limit.
Searches say "resize image to 40 KB", and this page does both. It first lowers the JPG quality, which usually reaches 40 KB on its own; only when that is not enough does it scale the dimensions, and only as much as needed. You always get the largest picture that fits.
If your form names another number, compress image to 25 KB, 30 KB, 50 KB or 100 KB instead; each page opens with its target set, and the presets carry the picture across. Any custom cap can be typed into the target box, a file that is too SMALL for a form is grown by the increase image size in KB tool, and the full compressor collection shows every size side by side.
Your photo never leaves your device. Compression, preview and saving all happen in your browser, with no upload, no server and no account.
Open the image and the tool automatically finds the highest quality that fits under 40 KB, scaling the dimensions only when the photo is too large to fit otherwise. Check the preview and download; the size shown is the real encoded size.
Drop the JPG here. If it is already under 40 KB it is handed back untouched; otherwise it is recompressed to fit, and the download is a JPG again.
Around 400 to 640 pixels on the long side for a normal face photo, which is more than the photo fields on most forms display.
No. Everything runs in your browser and the compressed file saves straight back to your device. No server ever sees the image.