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AiTechWorlds
AiTechWorlds
Run Python, JavaScript, TypeScript, SQL, Rust, Go, C, C++, PHP, Ruby, Lua and more — no installation, no account, completely free. Powered by WebAssembly and official playground APIs.
Run Python 3 in your browser using Pyodide WebAssembly. Perfect for data science, ML, and scripting.
Execute JavaScript instantly using native browser engine. ES6+, async/await, console.log all supported.
Write TypeScript with full type checking. Transpiled via Babel to run immediately in browser.
Build React components with JSX and see the live rendering in an iframe. No setup needed.
Write and execute SQL queries using SQLite WASM. Create tables, run SELECT, JOIN, GROUP BY.
Mix HTML, CSS and JS freely. Auto-detects pure CSS and wraps it in a full HTML page for instant preview.
Validate and format JSON. Syntax errors are highlighted and output is beautifully pretty-printed.
Write Markdown and see rendered HTML preview. Supports headers, lists, bold, italic, links.
Test regular expressions against multiple strings. See match count and captured groups clearly.
Run C code in the browser using JSCPP. Supports stdio.h, printf, loops, functions. Educational use.
Run C++ code using JSCPP. Supports iostream, cout, cin, vectors, classes. Great for learning.
Compile and run Rust using the official Rust Playground API. Full std lib, stable channel.
Run Go programs using the official Go Playground API. Full standard library available.
Execute Lua scripts using Fengari — a Lua 5.3 WASM runtime. print(), tables, functions all work.
Run Ruby using Opal — a Ruby-to-JavaScript compiler. puts, arrays, hashes, classes all supported.
Execute PHP scripts using WebAssembly runtime. echo, arrays, functions, string manipulation.
Note: Rust and Go use official free playground APIs (internet required). C/C++ use an educational interpreter (limited stdlib). PHP/Ruby load a WebAssembly runtime on first use (~10–30s).
Syntax Highlighting
Full CodeMirror 6 syntax highlighting for all 18 languages.
Line Numbers
Numbered gutter with code folding and active line highlight.
Share via URL
Encode your code into a shareable link — no server needed.
Save Snippets
Save your code snippets locally in your browser.
Search & Replace
Ctrl+F to search, Ctrl+H to replace within the editor.
Fullscreen Mode
Expand the editor to fill the entire screen.
Split View
See code and output side-by-side on desktop.
stdin Input
Provide input() values for Python scripts.
4 Themes
VS Code Dark, Dracula, Monokai, GitHub Light.
Open / Download
Open local files and download your code as a file.
Yes. The AiTechWorlds code editor is completely free with no signup. You can write and run code in 18+ languages — Python, JavaScript, TypeScript, SQL, C, C++, Java, Rust, Go, PHP, Ruby, and more — directly in your browser.
No. Everything runs in the browser, so there is nothing to install or configure. Pick a language, write your code, and run it instantly.
Python, JavaScript, TypeScript, SQL, HTML, CSS, React, JSON, Markdown, Regex, Lua, C, C++, PHP, Ruby, Rust, and Go each have a dedicated editor with examples.
Test and debug regular expressions with live match highlighting.
Format, validate, and minify JSON instantly in your browser.
Curated DSA, system-design, and behavioral questions by category.
Test your programming and AI knowledge with free timed quizzes.
Last reviewed on June 13, 2026 by the AiTechWorlds Engineering Team. Free to use — no signup required.