Need an image under 100KB? This tool compresses any JPG, PNG or WebP to 100 kilobytes or less — guaranteed — entirely in your browser. Drop the image, download the result, upload it where it was rejected. 100KB suits job portals, resume photos, visa documents and fast-loading website images.
Why the 100KB limit exists
100KB is the comfortable middle ground: strict enough for portals and email systems, generous enough that photos keep near-original sharpness on screen. It is also the sweet spot for web images — a 100KB hero image loads fast enough to keep Core Web Vitals happy while looking crisp on most displays. Many visa and immigration document systems also cap uploads at 100KB.
How to compress an image to 100KB
- Drop your image above — or click to browse, or paste with Ctrl+V. Multiple files work at once.
- The 100 KB target is pre-selected, with JPG output for the most quality per kilobyte.
- Download your file. The size badge confirms it is at or under 100KB.
Tips for the best result at 100KB
- Use JPG for photos — PNG is lossless and struggles to hit small targets without heavy downsizing.
- Crop away empty background first — quality goes where the pixels are.
- For websites: pair the 100KB target with WebP output — near-lossless results at a fraction of the weight.
- Other limits: 10KB · 20KB · 50KB · 100KB · 200KB · custom size.
Frequently asked questions
Will quality survive at 100KB?
Almost always — at 100KB most photos are visually indistinguishable from the original at normal screen sizes.
Is my image uploaded anywhere?
No — compression runs 100% in your browser. Documents and ID photos stay on your device.
Can I compress several images at once?
Yes. Drop a batch and every file is individually compressed to 100KB, then use Download all.
Is it free?
Completely — no sign-up, no watermark, no limits. See all our free daily tools and the complete compression guide.