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godbolt.org favicon

View assembly output from your code in real time

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Compile and explore C++, Rust, Go, and more online, instantly seeing the generated assembly code and comparing outputs across multiple compilers.

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See code compile to assembly in real time

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Try code online and instantly see assembly output for C++, Rust, Go, and more. Explore how your code compiles and learn from real-time results.

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See real-time assembly output as you code

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Compiler Explorer lets you write code in languages like Rust, C++, and Go, and instantly see the compiled assembly output online for learning or analysis.

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Visualize code execution and get instant AI help

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Python Tutor lets you write, run, and debug Python, Java, C, C++, and JavaScript code online with visual step-by-step help and AI-powered tutoring.

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Run Jupyter notebooks right inside Visual Studio

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Explore integrated Jupyter notebook features in Visual Studio and GitHub tools, making coding, data analysis, and learning more interactive and seamless.

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Run PHP code in 250+ versions online instantly

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Test and compare your PHP code online across 250+ PHP versions. Instantly see output, stats, and compatibility for any script, right in your browser.

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Run Python code instantly in your browser

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Write, run, and share Python code instantly in your browser with this easy-to-use online IDE—no installation or local setup required.

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Run and test .NET code instantly

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LINQPad lets you write, test, and run C#, F#, and VB code instantly. Explore databases, experiment with code, and debug in a quick, flexible workspace.

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Run and share code in 70+ languages online

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Ideone.com lets you write, compile, and run code in 70+ programming languages online—test ideas, debug, and share code easily from your browser.

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Collaborate on code in real time with AI support

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Zed is a fast, next-gen code editor with multiplayer features and AI assistance, built for seamless coding and real-time collaboration.

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Debug C/C++ code instantly in your browser

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Write, compile, run, and debug C/C++ code online with an easy-to-use browser-based editor and debugger—no downloads or setup needed.

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Code faster with AI-powered editing

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Cursor is an AI-powered code editor that helps you write, edit, and manage code efficiently, offering smart features to boost your productivity.

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Pair program with AI right in your terminal

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Aider brings AI pair programming to your terminal, helping you start new projects or enhance existing codebases with smart coding assistance.

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Windsurf is an AI-powered code editor and assistant designed to help developers write, edit, and manage code faster and more efficiently.

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Write and test Python code interactively

37%

IPython offers an interactive computing environment for Python, making it easy to write, test, and visualize code for data analysis and research.

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Develop PHP and web apps across multiple platforms

36%

CodeLobster is a free, portable cross-platform IDE for PHP, HTML, CSS, JavaScript, and more, supporting popular frameworks and CMS tools.

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Code in a playful, game-inspired editor

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Phoenix Code is a text editor that makes coding feel playful and intuitive, designed for web developers, designers, and students who want a fun experience.

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Interactive Python coding with smart features

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bpython offers an enhanced Python interpreter with an easy-to-use interface, code completion, and helpful features for interactive Python coding.

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Write and test JavaScript with instant results

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RunJS is a desktop app that lets you write, run, and experiment with JavaScript and Node.js code, offering live feedback and helpful code suggestions.

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Write and run code instantly in your browser

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Trinket lets you write and run code right in your browser, making it easy to learn, teach, and share coding projects on any device.

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Code and simulate micro:bit projects online

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Create and test code for the BBC micro:bit using an easy blocks or JavaScript editor—perfect for learning programming and electronics online.

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Code LEGO robots visually or with JavaScript

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Create and edit code for LEGO MINDSTORMS EV3 robots using an easy Blocks or JavaScript editor—ideal for learning programming and robotics.

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Run and share code online in multiple programming languages with Paiza.IO—an easy-to-use code editor and compiler you can access from your browser.

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Write, run, and experiment with JavaScript code instantly in your browser—perfect for learning, prototyping, and quick testing with no setup required.

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Practice SQL online with instant AI help

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Try SQL Fiddle, a free online SQL editor with AI chat to help you write, explain, and practice SQL code for multiple database systems.

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Automate Windows tasks with simple scripts

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AutoIt offers a free scripting language and tools to automate Windows tasks, featuring easy scripting, editor support, and helpful guides for all users.

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Run Scheme code instantly in your browser

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BiwaScheme lets you write and run Scheme code right in your browser, making it easy to experiment, learn, and test Scheme programming online.

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Get instant code snippets for your projects

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STCodesApp helps you quickly generate and access code snippets for various programming tasks, making coding easier and more efficient.

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Verify proofs and code interactively

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Rocq is an interactive theorem prover and dependently-typed programming language for verifying mathematics and code, supporting rigorous proofs.

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Decompile code instantly in your browser

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Easily decompile Java, Android, Python, and C# files online—just drag and drop to view or download code right from your browser.

Worldwide Onecompiler.com Alternatives

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Interactive Python IDE for all platforms

40%

Pyzo is a free, open-source Python IDE that offers an interactive editor, shell, and tools for coding with any Python interpreter on your system.

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Interactive Clojure development in Emacs

38%

CIDER is an interactive development environment for Clojure and ClojureScript, helping you write, test, and debug code efficiently within Emacs.

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Boost VS Code with Dart & Flutter tools

37%

Enhance Visual Studio Code with Dart and Flutter tools for editing, refactoring, and running Dart and Flutter mobile or web apps directly in your editor.

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Run Kotlin code instantly in your browser

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Edit, run, and share Kotlin code instantly online. Practice programming, test snippets, and learn Kotlin right in your browser—no setup needed.

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Boost your HTML & CSS coding speed

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Emmet is a toolkit plugin for web developers that speeds up HTML and CSS coding in popular text editors, making web development faster and easier.

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Run and share C# code instantly online

35%

Write, run, and share C#, VB.NET, or F# code directly in your browser with .NET Fiddle's online code editor—no installation needed.

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Learn Java with an easy beginner-friendly IDE

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BlueJ is a free Java development environment designed to help beginners learn programming with simple tools and an easy-to-use interface.

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Run Clojure scripts instantly from your terminal

31%

Babashka lets you run fast Clojure scripts directly from the command line, streamlining your workflow without switching between Clojure and bash.

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Test Ruby regex patterns instantly online

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Rubular is a simple, web-based Ruby regular expression editor and tester that lets you quickly create, test, and debug regex patterns online.

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Boost Emacs with intelligent code features

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Learn how to set up and use LSP Mode in Emacs for smarter code editing, language support, and enhanced development workflows with detailed guides.

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