Pterocos - Free browser-based editor for Python, Ruby, SQL, Lua, and web code

[aminkheddache-dotcom]

I built Pterocos (https://pterocos.eu.org) - a free online editor that runs entirely in your browser. No installation, no account required.

What it supports:

• Python
• Ruby
• SQL (SQLite and DuckDB)
• Lua
• HTML/CSS/JS

Why I built it: I wanted a single place to quickly test code across multiple languages without switching between local environments or paid tools.

What makes it different:

• Runs client-side (your code never leaves your browser)
• No tracking, no analytics, free forever
• Persistent storage via localStorage
• Perfect for learning, quick prototyping, and sharing runnable examples

Try it: https://pterocos.eu.org

Would love to get feedback from the community! What Python, Ruby, or SQL features would make this more useful for your workflow?

Thanks for checking it out.