Compress Image to 100KB
Compress a JPG, PNG or WebP to exactly 100KB online — free, fast and 100% on your device. Reduce photo size to 100KB without uploading.
Processed on your device — nothing is uploaded
Need a photo at exactly 100KB? Toolzo compresses any JPG, PNG or WebP down to 100KB (or just under) right in your browser — perfect for exam forms and portals that cap uploads at 100KB. Nothing is uploaded.
How it works
Frequently asked questions
How do I compress an image to 100KB?
Upload your photo, the 100KB target is already selected, then press process — the tool adjusts quality to hit 100KB.
Will quality stay good?
It keeps the highest quality that fits 100KB.
Does it work on mobile?
Yes — it runs in any mobile browser (Android & iPhone), no app needed.
Is it free and private?
Yes — free, no signup, and it runs in your browser so your file is never uploaded.