Pterocos

Pterocos – Free Online Code Editor for Python, Rust, PHP, SQL, Java, C#, Ruby, Lua & More

Pterocos is a free, open-source, browser-based code editor that supports 10+ programming languages including Python, Rust, PHP, SQL (SQLite & DuckDB), Java, C#, Ruby, Lua, and frontend tools like HTML/CSS/JS with SCSS and TypeScript support. Powered by the Monaco Editor (the engine behind VS Code), it features syntax highlighting, intelligent autocomplete, and a built-in AI assistant for debugging and code generation.

Key Features:

Instant Sharing – Create permanent, shareable links to your code for bug reports, code reviews, and teaching

AI Assistant – Built-in AI chat for debugging help, code suggestions, and explanations

No Account Required – Just open the editor and start coding instantly

Privacy-First – All code processing happens client-side; your code never leaves your browser

Runs in the Browser – No installation, no local setup, no toolchain needed

Free & Open Source – Completely free forever with no hidden costs

Perfect for developers, students, and educators who need a fast, secure, and accessible online code editor for testing snippets, prototyping ideas, or sharing runnable examples with teammates. Whether you're debugging a Python script, testing a Rust function, or prototyping an SQL query, Pterocos makes coding frictionless.

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