Compiler Explorer compiles code online and displays the generated assembly for multiple languages.
Compiler Explorer
Compiler Explorer compiles code online and displays the resulting assembly for several programming languages.
About Compiler Explorer
Compiler Explorer is an interactive online compiler that shows assembly output for C++, Rust, Go and other code. It provides a source editor with execution using stdin and arguments, intermediate views such as LLVM IR, AST and preprocessor output, assembly filters, and a control flow graph with PNG and SVG export.
Some tools do not work with every language or compiler, and some languages have no libraries configured. The optional Claude Explain feature sends source code and compilation output to Anthropic, and does not run when the code contains a no-ai directive.
Key features
- Shows assembly output for C++, Rust, Go and more
- Executes code with custom arguments and stdin input
- Displays intermediate outputs like LLVM IR, AST and preprocessor
- Filters assembly by directives, comments, labels and library functions
- Shows control flow graph with PNG and SVG export
- Saves and loads code via browser storage, files and examples
Best for: Developers and students examining assembly output for C++, Rust, Go and other supported languages.
Good for
- Covers C++, Rust, Go and additional languages in one interface
- Provides multiple inspection views beyond assembly, including LLVM IR and AST
- Allows local saving and loading through browser storage and files
Watch out for
- Some tools are unavailable for certain languages or compilers
- Some languages have no libraries configured
- Optional Claude Explain sends source and output to Anthropic
Compiler Explorer at a glance
- Website
- godbolt.org
- Category
- Development › Code Editors & IDEs
- Type
- Online tool
- Pricing
- Not confirmed. Check the site
- Platforms
- Web
- Open source
- Not stated
- Language
- English
- Last checked
- Oct 5, 2026 · Online when checked
- Listed
- Oct 5, 2026
Compiler Explorer alternatives
Tools and sites you could use instead, ranked by how closely they match.
CodingGround provides online programming editors and compilers for languages including C, Java, Python, and PHP.
Ideone compiles and runs code online across C, C++, Java, Python, and many other languages.
OneCompiler lets users write, run, and share code online in more than 110 programming languages.
Freemium
22 alternativesRun, save, and share code snippets in dozens of programming languages with the glot.io online playground.
An AI IDE with a built-in programming assistant and support for more than 100 languages is available through Trae.
Popular in Code Editors & IDEs
Well-known listings from the same topic.
Notebooks.azurevisualstudio.microsoft.com/vs/features/noteboo…Replayreplay.ioVim Bootstrapvim-bootstrap.commyCompilermycompiler.ioDevPoddevpod.shCompetitive Editorcpeditor.org
Compiler Explorer FAQ
Does Claude Explain share my code?
Yes. It sends source code and compilation output to Anthropic, a third party, for explanation. The text states the data is not used to train their model and is covered by the Privacy Policy.
Why is AI explanation unavailable for my code?
If the source or included libraries contain the string no-ai, Compiler Explorer will not process it with AI.
Are my settings included in shared URLs?
No. Settings are not preserved as part of shared URLs and are persisted locally using browser local storage.
Is something wrong or out of date?
Tell us and an editor will check it.
Own this website?
Claim this listing
Claim the listing and suggest updates yourself. An editor checks every claim first.