CodeCompile is a free online tool that lets you compile, run, and share JavaScript code in real time inside your web browser. It features a Monaco Editor interface with autocomplete suggestions and an output console, eliminating the need to configure Node.js or download an IDE locally.
Your JavaScript code is sent securely to a secure, sandboxed execution environment. The code is executed in a isolated Docker-like instance with custom restrictions to ensure safety, and the output (standard output logs, warnings, or compilation errors) is returned to your browser console window in milliseconds.
Yes! CodeCompile uses Monaco Editor, the core editing engine behind Microsoft Visual Studio Code. It provides intelligent context-aware autocomplete suggestions, type parameters, error highlights, and documentation tooltips for standard JavaScript APIs as you type.
Yes, CodeCompile is 100% free and open-source for developers, students, and educators. There are no paid tiers or subscription models. You can execute code, write files, and generate share links completely free of charge.
When you click 'Share' in the header, your code is saved securely in our database, and a unique sharing link is generated (e.g., /s/some-unique-id). You can choose to generate a 'View Only' link to prevent others from modifying your original code, or an 'Editable' link which allows anyone with the link to fork or edit a copy of the editor workspace.
To prevent abuse and maintain performance for all users, our execution engine has a few standard safeguards: a maximum execution timeout of 4 seconds (to prevent infinite loops), a maximum code file size of 50KB, and no direct outbound networking access inside the execution sandboxes.
- Ctrl + Enter: Run the current JavaScript code immediately.
- Ctrl + L: Clear all output logs and console history.
- Ctrl + S: Download your editor content as a local
main.jsfile.
Currently, CodeCompile supports core ECMAScript standards and JavaScript runtime globals (such as console, Math, Date, Map, Set, Promises, and Array methods). Importing external custom npm packages is not supported directly in the online compiler at this time, though we are actively researching modular imports.