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GivenTool

Compress an image to under 100 KB

Shrink a photo to under 100 KB for online forms, job portals and ID uploads.

Drop a file here or click to browse

Accepts JPG, JPEG, PNG, WEBP, HEIC, HEIF, GIF, BMP, AVIF. Up to 50.0 MB per file.

100 KB is the most common photo limit on online application forms: university admissions, job portals, e-visa systems and many banking KYC uploads use it. The limit exists because those systems store millions of applicant photos and only display them at small sizes.

A modern phone photo is 3 to 8 MB, so it needs a 30 to 80 times reduction. At 100 KB a JPG can still be around 1000 px wide at decent quality, which is more than enough for an ID photo. The tool finds the highest quality that fits and only reduces dimensions when it has to.

How to use it

  1. Drop the photo on the upload area or click to browse. JPG, PNG, WebP, HEIC and GIF are accepted.
  2. The target is already set to 100 KB. Adjust it only if your form quotes a different number.
  3. Keep JPG as the output unless the destination explicitly accepts WebP.
  4. Click Compress and wait a second or two; the result card shows the exact output size.
  5. Click Download. The compressed file is saved next to your original, which is not changed.

Frequently asked questions

Will a 100 KB photo be sharp enough for an ID or visa form?

Yes. Most portals display or print the photo at 35 x 45 mm or smaller. A 600 x 800 px JPG at 75% quality is around 80 KB and looks crisp at that size.

My form says "maximum 100 KB" but rejects a 100 KB file. Why?

Some systems count 100 KB as 100,000 bytes rather than 102,400. Set the target to 95 KB to be safe.

Does the result stay under the limit exactly?

Yes. The output is always at or below the number shown, measured in kilobytes of 1024 bytes, which is also how Windows, macOS and most upload forms measure files. The final size is displayed before you download.

Will my photo look bad?

Quality is only reduced as far as needed. The tool starts from 95% quality and searches downwards; dimensions are only reduced if quality alone cannot reach the target. Photos for forms are usually viewed small, so even aggressive targets look fine on screen.

Is the image uploaded to a server?

No. Decoding and encoding happen in a Web Worker inside your browser. The site never receives the file.

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