Compress an Image to an Exact KB Size
Set a kilobyte limit and this tool finds the highest quality that still fits under it — for one photo or a whole batch. Perfect for upload forms with strict size caps, and nothing is uploaded to us.
Updated September 2026 · Free · Works entirely in your browser
More options · 200 KB · max 1920 px · JPG
Common size limits worth knowing
- Website images — aim for 100–200 KB so pages stay fast and Core Web Vitals stay green.
- Email attachments — Gmail caps a whole message at 25 MB, but keep individual photos under 1 MB.
- Passport and visa portals — most accept 240 KB or less; some go as low as 100 KB.
- Marketplace listings — Etsy, eBay and Amazon all prefer large dimensions with moderate compression.
Want to know the size before you compress? Try the image file size estimator, or read the image compression guide.
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Frequently Asked Questions
Everything you need to know about image conversion.