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Compress image
to 100KB.

Turn large photos and scanned documents into a JPG under 100 KB — clear enough to read, small enough to upload.

Output: JPG under 100 KB — change it after upload

Drop images here  or  browse files

Paste Ctrl+V to compress screenshots instantly

PNG JPEG WebP GIF BMP AVIF
No server uploads Unlimited files & sizes MozJPEG · oxipng · libwebp

# File size tools

Reduce image size to 100KB

100 KB is a common cap for scanned documents, ID proofs, photos on university and scholarship portals, and profile pictures on job sites. It is enough room for a clear, readable image — if the compression is done well.

This tool keeps text and faces sharp by choosing the highest JPEG quality that fits under 100 KB, and only downsizing as much as the limit requires.

  • Readable documents

    At 100 KB, scanned text and certificates stay legible.

  • Size-accurate

    Guaranteed under 100,000 bytes, whichever way the portal counts KB.

  • Unlimited

    Compress as many files as you need; no daily cap or watermark.

How to compress an image to 100KB

  1. 1

    Drop your photo or scanned document into the box above.

  2. 2

    It is compressed to a JPG under 100 KB automatically.

  3. 3

    Download it — or change “Max size” if your form needs a different limit.

Typical 100KB upload uses

Scanned ID proof / certificate (image) JPG, up to about 100–300 KB
Photo on admission / scholarship portals JPG, up to about 100 KB
Profile photo on job sites Often up to 100 KB–2 MB

Limits differ between exams and change between years — always follow the exact size, dimensions and format in your official notification.

# FAQ

Compress to 100KB: common questions

How do I reduce image size to 100KB?

Drop the image here. The highest quality that fits under 100 KB is found automatically; very large images are also scaled down to a sensible resolution.

Will text in my scanned document stay readable?

At 100 KB, yes for a normal A4 page. Crop away empty margins before compressing for the sharpest text.

Can I compress a PDF to 100KB?

This tool works on images (JPG, PNG, WebP). Scan or export your document as an image first.

Can I keep the PNG format?

Yes — switch Format to PNG after uploading. JPG is usually better for photos and gets closer to the limit with higher quality.