# rust-lang/rust-playground

The Rust Playground

Repository: https://github.com/rust-lang/rust-playground
Canonical: https://ross.abutalabs.com/products/rust-playground
Homepage: https://play.rust-lang.org/
Language: Rust
License: Apache-2.0
License Family: permissive
Topics: rust, rust-playground
Last push: 2026-08-25T01:26:47+00:00

## Health v2 (maintenance only)
Score: 77/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 99, release rhythm 35, longevity 100
- inputs: {"age_days": 3722, "days_push": 9, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1426, forks 268 (observed 2026-08-28T04:04:41.676787+00:00)

## What it is
The Rust Playground is a web service that lets users write, compile, and run Rust code in the browser without installing anything. It supports stable/beta/nightly toolchains, popular crates, rustfmt and Clippy, sharing via GitHub Gists, and viewing LLVM IR, assembly, or MIR output.

## Use cases
- try out Rust code without installing the compiler
- share a Rust code snippet with a friend via a link
- test whether a snippet compiles on stable, beta, or nightly Rust
- run rustfmt or Clippy on a small piece of Rust code
- inspect the LLVM IR, assembly, or MIR generated from Rust source
- experiment with popular crates like those in the Rust Cookbook
- reproduce a compiler error or ICE to report an issue

## When to choose
- you want to quickly experiment with or demo Rust code in a browser
- you need a sandboxed environment to run untrusted Rust snippets
- you want to share runnable Rust examples linked to Gists
- you need to compare compiler output across Rust toolchain channels

## When to avoid
- you need network access from the compiled program, since the sandbox has none
- you need long-running or resource-heavy programs beyond the time and memory limits
- you need crates outside the top 100 plus Cookbook set and their dependencies
- you need persistent disk storage, which the sandbox does not limit or provide

## Facets
- artifact type: service
- maturity: active
- function: compiler, editor, developer-tools, web-framework, http-server
- domain: developer-tools, programming-languages, web-development, education
- platform: rust, self-hosted
- tags: rust-playground, online-compiler, code-sharing, sandboxed-execution, react-frontend, axum-backend, sandbox, web-server, docker, javascript

## Member repositories
- rust-lang/rust-playground (main) score 77

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:04:41.676787+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T04:37:28.461196+00:00, confidence not recorded.
  - readme: https://github.com/rust-lang/rust-playground (fetched 2026-08-28T04:04:41.676787+00:00, sha c64909957191)
  - homepage: https://play.rust-lang.org/ (fetched 2026-08-29T11:49:15.409730+00:00, sha 635272ade4ff)
- Data as of 2026-08-30T08:39:29.467469+00:00.