© 2026 Zig-Zag

FREE · NO LOGIN · 40+ LANGUAGES

Code in Any Language,
Run it Instantly

A professional, browser-based environment for writing and executing code instantly. Fast, free, and secure.

1

Instant Execution

Code runs via our global cloud network. JS and Python execute instantly in-browser for zero latency.

2

Broad Support

Compatible with over 40 programming languages including C, Java, Go, Rust, and many more.

3

Input Handling

Full support for standard input, allowing you to test programs that require user data.

4

Curated Snippets

Dozens of ready-to-use examples for common algorithms and data structures.

5

Professional Editor

Features include syntax space, line numbers, and a customizable split-pane layout.

6

Resource Metrics

Detailed statistics for every run, including execution time and memory usage metrics.

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Collections

Snippets

Ready-to-use boilerplate and algorithms. Select an item to load it instantly.

Resources

Documentation

Professional technical guides and interactive shortcut references.

Topics

Getting Started

Zig-Zag is a high-performance, professional-grade online IDE designed for rapid development across 40+ programming languages. No setup or login is required - just open and code.

Basic Workflow

  • Select Language: Use the dropdown in the sidebar to pick your preferred environment.
  • Development: Write code in the Monaco-powered editor. Syntax highlighting and IntelliSense are standard.
  • Execution: Click Run or press Ctrl + Enter.
  • Output: View logs and performance metrics in the tabbed terminal panel.

Environments

Zig-Zag utilizes a hybrid execution model to maximize performance and security.

1. Local Sandbox (Instant)

Languages: JavaScript (Node.js), Python 3.

Execution: Runs directly in your browser via optimized Workers. Zero latency.

2. Cloud Engine (Isolated)

Languages: C++, Rust, Go, Java, and 30+ others.

Execution: Powered by high-speed Linux containers in a secure cloud network.

Keyboard Shortcuts

Enhance your productivity with professional-grade keyboard interaction.

Ctrl + Enter Execute code (Run)
Ctrl + S Save file to local VFS
Ctrl + F Find / Replace in editor
Ctrl + \ Toggle Sidebar visibility
Tab Indent / Next suggestion

Stdin / Interactive Input

Programs requiring standard input (Stdin) are fully supported. Use the Stdin field located below the code editor.

Handling Multiple Inputs

For programs that expect multiple lines of input (e.g., reading T cases), enter each value on a new line in the Stdin field before clicking Run.

Metrics & Performance

Switch to the Metrics tab in the terminal to view detailed execution statistics for every run.

  • Time Taken: Actual execution time recorded.
  • Estimated Ideal: A target benchmark based on optimal algorithmic complexity for the given task.
  • Optimality: A rating (Optimal, Sub-optimal, etc.) based on AI analysis of your code structure.
  • Memory (RSS): Resident Set Size - the portion of memory occupied by the process.
  • Zig-Zag Insight: Direct feedback on your algorithmic choices and potential optimizations.

Tips & Best Practices

  • Auto-save: Zig-Zag persists your current session buffer to LocalStorage automatically.
  • Offline Mode: JavaScript and Python execution remains available even without an active internet connection.
  • Pro Typing: Use JetBrains Mono for a superior, ligature-supported coding experience.