wide

The Web IDE

Setting the page up registering its service worker
Opening the project
Starting the runtime

The runtime and the demo project are downloaded once and then kept in this browser, so the next visit starts with neither.

Starting…

…

Projects

A project lives in this browser's storage and is still there on the next visit. Opening a different one reloads this tab, because a project is a whole filesystem and the shell is already running on one.

Open one you have

Start a new one

The demo project A front controller, SQLite notes, and PHPUnit in vendor/. Laravel The framework, migrated and ready, served from public/. Around 9 MB — it arrives when you ask for it. Python A WSGI application with SQLite notes, both from the standard library. Switches this tab to CPython — about 6 MB, once. Flask A framework and its dependency tree, in a .venv/ that travels with the project — pure-Python wheels installed where the page was built, because there is no network here to install from. Also CPython — about 8 MB, once. JavaScript An HTTP server and its notes, both from the standard library. Downloads no interpreter at all — the engine is the one this page is already made of. Express The same notes on a framework, with its dependency tree travelling in the project — so it runs before you install anything. Still no interpreter: about 1 MB, once. An archive of your own A .zip whose entries are the project's files — what Export writes.

PHP compiled to WebAssembly by phasm, in a shell from wasi-sh.