Compress JPEG to 100 KB — Free Online Tool
Compressing a JPEG to 100 KB is a common requirement for online visa applications, e-commerce product uploads, and social media verification forms. ToolFlow iteratively adjusts the JPEG quality factor using a binary search algorithm, converging on the optimal quality setting that produces a file at or below 100 KB while maximising visual fidelity.
Compress your JPEG to 100KB in 3 steps:
- 1. Open the Image Compressor
- 2. Upload your JPEG file
- 3. Adjust the quality slider until the output is ≤ 100KB and download
How to Compress JPEG to 100KB
Binary Search Algorithm Explained
The compressor starts at quality 50 and checks the output size. If the result is above 100 KB, it tries quality 25. If below, it tries quality 75. This process repeats 6–8 times, converging on the highest quality setting that still produces a file at or below 100 KB.
Privacy
All compression runs entirely in your browser using WebAssembly. Your JPEG is never uploaded to any server.
When You Need to Compress a JPEG to 100KB
- Online visa and travel permit applications
- E-commerce product image upload requirements
- Social media verification and profile photos
- Online banking and KYC document photo uploads
- Government job application portal photo limits