Robust, scalable, and open-source online code execution system.
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Judge0 (pronounced like "judge zero") is a robust, scalable, and open-source online code execution system. You can use it to build a wide range of applications that need online code execution features. Some examples include competitive programming platforms, e-learning platforms, candidate assessment and recruitment platforms, online code editors, online IDEs, and many more.
In our research paper Robust and Scalable Online Code Execution System, we present Judge0's modern modular architecture that can be easily deployed and scaled. We study its design, comment on the various challenges in building such systems, and compare it with other available online code execution systems and online judge systems.
To see Judge0 in action, try Judge0 IDE - our free and open-source online code editor.
- Quick and easy installation
- Rich and verbose API documentation
- Scalable architecture
- Sandboxed compilation and execution
- Support for 60+ languages
- Compilation and execution of multi-file programs
- Support for additional files alongside the user's program
- Support for custom user-defined compiler options, command-line arguments, and time and memory limits
- Detailed execution results
- Webhooks (HTTP callbacks)
For more information about these and other features, please read the documentation.
Get started with Judge0 today on Sulu and get 20K Free Submissions to try it when you sign up.
You can also get started with the FREE Basic Plan on RapidAPI or host it yourself.
You can find our detailed plans and pricing here. So far our clients have run with us more than 
Our infrastructure allows you to focus on building your product and forget about the know-how of maintaining and scaling Judge0.
Let's talk. Contact us.
Judge0 comes in two flavors: Judge0 CE and Judge0 Extra CE. They differ mostly in the supported languages.
You can find the source code for Judge0 CE on the master branch, while you can find the source code for Judge0 Extra CE on the extra branch.
Judge0 Extra CE is also available on Sulu and RapidAPI.
Judge0 comes in two flavors: Judge0 CE and Judge0 Extra CE. They differ mostly in the supported languages.
Click here to expand the list
| # | Name |
|---|---|
| 1 | Assembly (NASM 2.14.02) |
| 2 | Bash (5.0.0) |
| 3 | Basic (FBC 1.07.1) |
| 4 | C (Clang 7.0.1) |
| 5 | C (GCC 7.4.0) |
| 6 | C (GCC 8.3.0) |
| 7 | C (GCC 9.2.0) |
| 8 | C# (Mono 6.6.0.161) |
| 9 | C++ (Clang 7.0.1) |
| 10 | C++ (GCC 7.4.0) |
| 11 | C++ (GCC 8.3.0) |
| 12 | C++ (GCC 9.2.0) |
| 13 | Clojure (1.10.1) |
| 14 | COBOL (GnuCOBOL 2.2) |
| 15 | Common Lisp (SBCL 2.0.0) |
| 16 | D (DMD 2.089.1) |
| 17 | Elixir (1.9.4) |
| 18 | Erlang (OTP 22.2) |
| 19 | Executable |
| 20 | F# (.NET Core SDK 3.1.202) |
| 21 | Fortran (GFortran 9.2.0) |
| 22 | Go (1.13.5) |
| 23 | Groovy (3.0.3) |
| 24 | Haskell (GHC 8.8.1) |
| 25 | Java (OpenJDK 13.0.1) |
| 26 | JavaScript (Node.js 12.14.0) |
| 27 | Kotlin (1.3.70) |
| 28 | Lua (5.3.5) |
| 29 | Objective-C (Clang 7.0.1) |
| 30 | OCaml (4.09.0) |
| 31 | Octave (5.1.0) |
| 32 | Pascal (FPC 3.0.4) |
| 33 | Perl (5.28.1) |
| 34 | PHP (7.4.1) |
| 35 | Plain Text |
| 36 | Prolog (GNU Prolog 1.4.5) |
| 37 | Python (2.7.17) |
| 38 | Python (3.8.1) |
| 39 | R (4.0.0) |
| 40 | Ruby (2.7.0) |
| 41 | Rust (1.40.0) |
| 42 | Scala (2.13.2) |
| 43 | SQL (SQLite 3.27.2) |
| 44 | Swift (5.2.3) |
| 45 | TypeScript (3.7.4) |
| 46 | Visual Basic.Net (vbnc 0.0.0.5943) |
Click here to expand the list
| # | Name |
|---|---|
| 1 | Bosque (latest) |
| 2 | C (Clang 10.0.1) |
| 3 | C (Clang 9.0.1) |
| 4 | C# (.NET Core SDK 3.1.302) |
| 5 | C# (Mono 6.10.0.104) |
| 6 | C# Test (.NET Core SDK 3.1.302, NUnit 3.12.0) |
| 7 | C++ (Clang 10.0.1) |
| 8 | C++ (Clang 9.0.1) |
| 9 | C++ Test (Clang 10.0.1, Google Test 1.8.1) |
| 10 | C++ Test (GCC 8.4.0, Google Test 1.8.1) |
| 11 | C3 (latest) |
| 12 | F# (.NET Core SDK 3.1.302) |
| 13 | Java (OpenJDK 14.0.1) |
| 14 | Java Test (OpenJDK 14.0.1, JUnit Platform Console Standalone 1.6.2) |
| 15 | MPI (OpenRTE 3.1.3) with C (GCC 8.4.0) |
| 16 | MPI (OpenRTE 3.1.3) with C++ (GCC 8.4.0) |
| 17 | MPI (OpenRTE 3.1.3) with Python (3.7.7) |
| 18 | Nim (stable) |
| 19 | Python for ML (3.7.7) |
| 20 | Visual Basic.Net (vbnc 0.0.0.5943) |
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- A Strategy Based on Technological Maps for the Identification of the State-of-the-Art Techniques in Software Development Projects: Virtual Judge Projects as a Case Study
- A comparison between online compilers: A Case Study
- ADAPTIVE MENTORING WITH IMMEDIATE FEEDBACK FOR THE DEVELOPMENT OF PROGRAMMING SKILLS
- Advanced lab analysis system using apache spark
- Analiza performansi sustava za udaljeno izvršavanje programskog kôda
- Artificial Intelligence and Computer-Supported Collaborative Learning in Programming: A Systematic Mapping Study
- Automatic Evaluation of Student Software Solutions in a Virtualized Environment
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- Canvas Coding: una piattaforma di gioco per studenti basata sulla programmazione creativa = Canvas Coding: a gaming platform for students based on creative programming
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- Computing students’ design preferences and barriers when solving short programming problems
- Dataset for Validation and Performance Testing of Online Judges
- Desarrollo de una plataforma orientada al refuerzo en la evaluación del nivel de programación
- Desenvolvimento de um software Web para auxiliar o processo de ensino-aprendizagem da disciplina de Introdução à Ciência da Computação (ICC) da UNESP - Instituto de Ciência e Tecnologia de Sorocaba
- Development of a System for Automated Testing of Program Code for the Educational Process in the Discipline "Programming Languages
- ECCO: Can We Improve Model-Generated Code Efficiency Without Sacrificing Functional Correctness?
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- MAGECODE: Machine-Generated Code Detection Method Using Large Language Models
- Modul za obavljanje korisnički definiranih programa u sustavu za automatsko ocjenjivanje programskog kôda Edgar
- Nacionalni repozitorij završnih i diplomskih radova ZIR
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- Software de retos de programación
- Thinking beyond chatbots' threat to education: Visualizations to elucidate the writing and coding process
- Usability and Security of Trusted Platform Module (TPM) Library APIs
- Voice-Enabled Intelligent IDE in Cloud
- Web aplikacija za provjeru programskog koda
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- Web-aplikacija za obavljanje i dijeljenje programskih odsječaka u različitim programskim jezicima
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- «SYNCODING» - COLLABORATIVE CODE WRITING
- Видеомессенджер для совместной работой над кодом
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- Платформа для спільної роботи викладача та студента під час іспиту
- Розробка структури та програмна реалізація інтерфейсу WEB-редактора
- Designing Online Judge or Leetcode
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- Programski jezik Go - FER 2019./2020. - Prvo predavanje
- Sudjelovanje FER-a na Smotri Sveučilišta 2019.
- Svečana 672. sjednica Fakultetskog vijeća FER-a
- USACO Guide - Running Code Online
- Web application for authoring and sharing code snippets in different programming languages
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- LitCode
- Judge0 Sandbox Escape
- Building a Leetcode clone backend
- Deployment on Google Cloud
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- Judge0 on AKS Cluster Setup
- Excellent Online Code Editors
Please cite us if you found the resources in this repository useful.
@INPROCEEDINGS{9245310,
author={Došilović, Herman Zvonimir and Mekterović, Igor},
booktitle={2020 43rd International Convention on Information, Communication and Electronic Technology (MIPRO)},
title={Robust and Scalable Online Code Execution System},
year={2020},
volume={},
number={},
pages={1627-1632},
doi={10.23919/MIPRO48935.2020.9245310}}
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Judge0 was created and is maintained by Herman Zvonimir Došilović.
Thanks a lot to all contributors for their contributions to this project.
You can find the detailed specification of changes between versions in CHANGELOG.md.
Special thanks to open-source projects without whom Judge0 probably wouldn't exist: Isolate, Docker, Ruby on Rails and others.
Judge0 is licensed under the GNU General Public License v3.0.