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Compiler Explorer

godbolt.org

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Spec score 8.1 #13 of 58 in Code Playground Software

Spec sheet

What it does
Compiler Explorer lets you edit code in a browser and inspect the compiled output, including assembly.Read 9 Oct 2026 · github.com
Free plan
YesRead 20 Sep 2026 · godbolt.org
API
The README says a simple REST API can compile code to assembly and list compilers.Read 9 Oct 2026 · github.com
Integrations
The interface links to CppInsights and Quick-bench as companion tools.Read 9 Oct 2026 · godbolt.org
Support
The project lists Discord, a public mailing list, GitHub issues, and email to Matt as ways to get help.Read 9 Oct 2026 · github.com
Founded
2012Read 28 Sep 2026 · godbolt.org
AI feature privacy
The site says Claude Explain sends source code and compilation output to Anthropic, and that Anthropic does not collect or use the data to train its model.Read 9 Oct 2026 · godbolt.org
AI opt-out
The site says it will not process code with AI when it finds the string "no-ai" in the source or included libraries.Read 9 Oct 2026 · godbolt.org
Code execution
The interface includes controls to link and execute compiled code.Read 9 Oct 2026 · godbolt.org
Compilation views
The interface offers compiler output alongside tools and views such as LLVM IR, Rust MIR, AST, and control-flow graphs.Read 9 Oct 2026 · godbolt.org
Languages and compilers
The project README says it supports 30+ programming languages and multiple compilers for each language.Read 9 Oct 2026 · github.com
Libraries
Libraries can be searched and added by version, and the site says they are installed using the Conan package manager.Read 9 Oct 2026 · godbolt.org
Library limitation
The site says Windows-based compilers currently do not support libraries.Read 9 Oct 2026 · godbolt.org
Security isolation
A 2025 article by the creator says compilation and execution run in nsjail sandboxes with Linux namespaces, resource limits, and filesystem isolation.Read 9 Oct 2026 · xania.org
Self-hosting
The project README links to instructions for running a local instance and using local compilers.Read 9 Oct 2026 · github.com
Sharing and saving
Users can share code by URL and save or load editor text using browser storage or local files.Read 9 Oct 2026 · godbolt.org
Who it serves
The project describes an interactive compiler exploration website for seeing how code looks after compilation.Read 9 Oct 2026 · github.com

Plans and prices

Warm fuzzy glow $1 a month Patreon supporter membership Read 9 Oct 2026 · patreon.com
Coder Karma $5 a month Patreon supporter membership Read 9 Oct 2026 · patreon.com
Super supporter $10 a month Patreon supporter membership Read 9 Oct 2026 · patreon.com
Legendary supporter $50 a month Patreon supporter membership · Limited (20 remaining) Read 9 Oct 2026 · patreon.com

Every Compiler Explorer plan and price →

Where Specifiction places it

Alternatives to Compiler ExplorerAll alternatives →