How to compress an image to 100KB
- Drop your photo in — JPG, PNG, WebP, even iPhone HEIC.
- The tool automatically finds the highest quality that fits under 100KB, shrinking dimensions only if it must.
- Download — the size next to each file confirms it's under the limit.
Why "compress to 100KB" beats a quality slider
When a form says "maximum file size: 100KB", a normal compressor makes you guess: pick a quality, check the size, try again. This tool inverts the problem — you name the size, it does a binary search over quality levels (and gently reduces dimensions only when a photo can't fit otherwise) to deliver the best-looking image that passes the check on the first try. Passport photo uploads, government portals, job applications, exam registrations: drop, download, done.
Frequently asked questions
How does the tool get my image under 100KB?
It automatically searches for the highest JPEG quality that fits under 100KB. If even the lowest reasonable quality is too big, it gently reduces the dimensions and tries again — so you always get the best-looking image that fits.
Why do so many forms require images under 100KB?
Government portals, job applications, visa systems and exam registrations cap upload sizes to keep storage and bandwidth costs down. 100KB is one of the most common limits worldwide.
Will my photo still look good at 100KB?
Usually yes — 100KB is plenty for a portrait or document photo at typical form dimensions. The tool sacrifices as little quality as possible.
Is my photo uploaded during compression?
No. Everything runs in your browser — important for ID photos and personal documents, which never leave your device.