Wubular is a modern re-imagining of Rubular, built with Ruby compiled to WebAssembly.
It lets you compose and test Ruby regular expressions directly in your browser — no backend server required.
Because browsers block WASM loading over file://, you’ll need to serve it over HTTP.
The simplest way is to use Ruby’s built-in HTTP server:
ruby -run -e httpd . -p 1234Then open:
http://localhost:1234/
That’s it — you now have Wubular running in your browser. 🚀
Append ?run_test to the URL and open the browser console.
You’ll see the full Minitest suite running natively inside your browser.
Example:
http://localhost:1234/?run_test