ImageJ.JS — ImageJ in Your Browser

ImageJ.JS brings ImageJ — one of the most widely used scientific image-analysis tools — into the web browser. Powered by WebAssembly (via CheerpJ), it runs the full Java application with no installation: open it from any link, keep plugin support, work directly with local files, and get AI assistance for analysis. It serves 1,000–1,500 unique users every day — researchers and educators worldwide.

By removing the installation barrier, ImageJ.JS makes image analysis instantly shareable — ideal for teaching, reproducible workflows, and embedding interactive analysis in websites and notebooks. It integrates with the lab’s broader web-computing ecosystem around ImJoy and Hypha.