# Rust Playground

> website to play with Rust code online

**Wikidata**: [Q114970423](https://www.wikidata.org/wiki/Q114970423)  
**Source**: https://4ort.xyz/entity/rust-playground

## Summary
Rust Playground is a web application and official demo website that allows users to write, compile, and execute Rust code online. Accessible primarily via the URL play.rust-lang.org, it functions as a browser-based interface for experimenting with the Rust programming language without requiring local installation.

## Key Facts
- **Official URLs:** https://play.rust-lang.org/ and https://play.integer32.com/
- **Nature:** Classified as a web application and an official demo website.
- **License:** Licensed under the Apache Software License 2.0.
- **Editors:** Depends on the Ace and Monaco Editor software components.
- **Source Code:** Hosted on GitHub at https://github.com/integer32llc/rust-playground.
- **Function:** Specifically supports the Rust programming language (Wikidata ID Q575650).
- **Alias:** Also known by the domain alias "play.rust-lang.org".

## FAQs
### Q: What is the primary purpose of Rust Playground?
A: It serves as an online environment for users to test and share Rust code snippets directly within a web browser, eliminating the need for a local development setup.

### Q: Is the Rust Playground open source?
A: Yes, the project is licensed under the Apache Software License 2.0, and its source code is publicly available on GitHub.

### Q: What code editors are used in the Rust Playground interface?
A: The application depends on the Ace and Monaco Editor software to provide its code editing capabilities.

## Why It Matters
Rust Playground plays a critical role in the Rust ecosystem by significantly lowering the barrier to entry for new users. It provides an immediate, zero-configuration environment for learning and experimentation, which is essential for a systems programming language that often requires complex setup and tooling. By offering an "official demo website," it creates a standardized, shareable way for developers to reproduce bugs, demonstrate features, and collaborate on code snippets.

Its implementation as a web application utilizing components like Monaco Editor (the same engine powering VS Code) offers a familiar and robust user experience. This accessibility helps drive adoption and fosters community interaction by making Rust code portable and instantly executable.

## Notable For
- **Official Demo Site:** It is recognized as the official demonstration website for the Rust programming language.
- **Zero-Setup Access:** Allows users to run code in a browser without installing the Rust toolchain.
- **Multiple Editor Backends:** Uniquely supports dependencies on both Ace and Monaco Editor for the user interface.
- **Open Source Transparency:** Fully open-source with a repository hosted by Integer 32 LLC.

## Body
### Technical Architecture
Rust Playground is constructed as a web application designed to run code within a browser client. It is not merely a static site but a dynamic environment backed by specific software dependencies.

### Access and Hosting
The primary access point is the canonical URL `https://play.rust-lang.org/`. An alternative URL, `https://play.integer32.com/`, is also designated for the project. The project is aliased as "play.rust-lang.org" in knowledge bases.

### Development and Licensing
The platform is developed and maintained under the entity Integer 32 LLC. The entire codebase is open to the public, hosted in the GitHub repository `integer32llc/rust-playground`. The project operates under the Apache Software License 2.0, a permissive free software license.

### User Interface Components
To provide a rich coding experience, the application integrates established text editor technologies. The platform depends on **Ace** (Ajax.org Cloud9 Editor) and **Monaco Editor**. These components provide syntax highlighting and code editing functionality within the browser window.

## References

1. [Source](https://api.github.com/repos/integer32llc/rust-playground)