Compress Image to 100 KB
One hundred kilobytes is the most common photo limit on Indonesian job and civil-service style portals — CPNS and BUMN application uploads, university registrations, and HR systems routinely demand a photo under 100 KB. This tool gets your portrait or document photo to 100 KB or smaller while protecting the dimensions those portals ask for.
Generate a file to view the result summary.
How to use Compress Image to 100 KB
- Choose or drop a JPEG, PNG, or WebP image.
- Pick the output format: JPG for the smallest files, WebP to keep transparency.
- Process the image. Quality is reduced first, then dimensions, until the file is 100 KB or smaller.
- Compare the result size, then download the generated file.
Supported behavior
- The target is 100 KB or smaller. The result panel always shows the real output size.
- The search runs locally: encoding quality steps down first, then the dimensions shrink in steps.
- JPG usually reaches small targets at better quality; WebP keeps transparency when the browser supports it.
Best for
- CPNS and government job-portal photo uploads.
- HR and recruitment system attachments under 100 KB.
- Email attachments that must stay light for slow connections.
Limits
- Reaching a very small target can visibly soften detail, especially in photos with lots of texture.
- If even the smallest sensible export stays above the target, the tool says so and hands you that smallest file instead of faking success.
- The target counts bytes the way upload forms do: 100 KB means 102,400 bytes.
Privacy notes
- Selected files stay on your device during processing; nothing is uploaded to a server.
- Object URLs are revoked when previews or results are replaced.
Related tools
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Compress Image to 100 KB FAQ
The portal also requires a specific photo size. Can I keep my dimensions?
The tool shrinks dimensions only as a last resort, after quality reduction. If your photo starts at the required size, it usually fits under 100 KB on quality alone — the result panel shows the final dimensions so you can verify.
Is 100 KB the same as 100,000 bytes?
Portals usually mean 100 × 1024 = 102,400 bytes, which is what this tool targets. The result panel shows the exact byte-based size in KB so you can compare with the form's wording.
My result is 98 KB but looks soft. What can I do?
Start from the sharpest, least noisy original you have, and crop out background before compressing. Less background detail means more of the 100 KB budget goes to your face or document.