Compress Image to 10 KB

A 10 KB limit is one of the strictest you will meet online. It usually applies to a scanned signature, a thumb impression or a very small ID-style photo in an application form. This page is preset to 10 KB: drop your image and it comes back as a JPG just under 10 KB, at the best quality that still fits.

Where a 10 KB limit shows up

• Signature uploads in exam and recruitment forms with a 10 KB or 12 KB cap
• Left-thumb impressions for bank and railway recruitment applications
• Small photos for older e-governance and scholarship portals
• Tiny avatars for forums, intranet directories and chat profiles

How to compress a photo to 10 KB

1. Drop your photos on the upload box, click to choose files, or paste an image with Ctrl+V. The target is already set to 10 KB.
2. If the form also fixes the pixel size (for example 140 × 60 px for a signature), open Resize, choose Exact and enter it. Otherwise leave Keep selected.
3. Each image is compressed automatically; the file list shows the new size next to the original.
4. Drag the before/after slider to check the quality. The result line shows the new dimensions, the file size and the JPG quality that was used.
5. Click Download, or Download all (ZIP) when you compressed several images.

What fits in 10 KB

At 10 KB a JPG holds roughly 40,000 to 60,000 pixels of a normal photo with decent detail, so think about 200 × 230 px for a face. A signature can be much wider, because the white paper around the ink costs almost nothing: a cropped 300 × 100 px signature often ends up at only 4 to 6 KB. A full 12-megapixel phone photo cannot stay sharp at 10 KB, so the tool shrinks it to a few hundred pixels. Keep the output as JPG: almost every form with a 10 KB limit accepts only JPG/JPEG, and PNG is far larger for photos.

Behind the scenes the tool does not guess. If your photo is over 10 KB, it runs a quick search for the highest JPG quality (up to 80%) that still lands under the limit, keeping about 1.5% headroom so the portal's own byte count never tips it over. Only when even 35% quality is too big does it scale the width and height down, step by step, and search again. If you set an exact pixel size under Resize, the dimensions are never changed: the quality may go lower instead, and a warning appears if 10 KB cannot be reached at that size.

Tips for the best result at 10 KB

• Crop tightly first. A signature photographed on a full A4 sheet wastes most of the 10 KB on empty paper.
• Sign with a black or dark-blue pen on plain white paper and shoot in daylight: shadows and grey paper texture eat bytes.
• If the form asks for a range such as 4 to 12 KB, stay close to the upper limit; a 9 KB file looks clearly better than a 3 KB one.

Private, free and unlimited

Everything runs in your browser. Your photos are never uploaded, camera and location data (EXIF) are removed from every result, and there is no sign-up, no watermark and no daily limit.

Need to create the signature first? Draw or type one with the signature generator, trim the edges with the image cropper, and if your photo slot allows more, use compress to 20 KB for visibly better quality.