Open-source interpreter software
754 open-source libraries, tools and applications tagged interpreter, ranked by how closely interpreter is their primary purpose, then by adoption and maintenance health. Each entry links to a page with sources, use cases and when to choose or avoid it.
754 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| Janet programming language Janet is a dynamic functional and imperative Lisp-like programming language with its own bytecode VM, implemented in a single embeddable C … | 94 | 4463 | stable |
| libffi/libffi libffi is a portable C library providing a high-level interface to various calling conventions, allowing code to call compiled functions wh… | 90 | 4394 | stable |
| dotnet/fsharp The official open-source F# compiler, F# core library (FSharp.Core), and F# language service, including tooling integration for Visual Stud… | 74 | 4344 | stable |
| vercel-labs/just-bash just-bash is a TypeScript-implemented bash interpreter with an in-memory virtual filesystem, designed to give AI agents a secure, sandboxed… | 82 | 4338 | active |
| JonathanSalwan/Triton Triton is a dynamic binary analysis library providing dynamic symbolic execution, taint analysis, and ISA semantics for x86, x86-64, ARM32,… | 67 | 4334 | active |
| Alibaba Dragonwell Alibaba Dragonwell8 is a downstream, production-hardened distribution of OpenJDK 8 (LTS) optimized for large-scale online e-commerce, finan… | 97 | 4315 | active |
| zsh-users/zsh Zsh (the Z Shell) is a Unix shell written in C, designed for interactive use and also usable as a powerful scripting language. It is a feat… | 76 | 4305 | active |
| PyScript PyScript is an open source platform for running Python directly in the browser, built on Pyodide (CPython), MicroPython, and WebAssembly. I… | 93 | 18688 | maintenance |
| wine-mirror/wine Wine is a compatibility layer that runs Microsoft Windows programs (DOS, Win16, Win32, Win64) on Unix-like operating systems without requir… | 76 | 4227 | active |
| root-project/cling Cling is an interactive C++ interpreter built on top of Clang and LLVM, implementing a read-eval-print loop (REPL) for rapid C++ developmen… | 70 | 4195 | active |
| knownsec/aipyapp AiPy (Python-Use) is an AI desktop assistant from Knownsec that implements a 'Code is Agent' paradigm: it gives an LLM a full Python execut… | 57 | 4027 | active |
| cea-sec/miasm Miasm is a free and open source (GPLv2) reverse engineering framework written in Python for analyzing, modifying, and generating binary pro… | 66 | 3985 | active |
| scriban/scriban Scriban is a fast, lightweight, safe scripting language and text templating engine for .NET, with a compatibility mode for parsing Liquid t… | 97 | 3972 | stable |
| holzschu/a-shell a-Shell is a Unix-like terminal application for iOS and iPadOS with support for multiple windows, each with its own context, history, and a… | 68 | 3964 | active |
| NetHack/NetHack The official source repository for NetHack, a classic single-player roguelike dungeon exploration game descended from Rogue and Hack. Versi… | 79 | 3930 | active |
| jruby/jruby JRuby is an implementation of the Ruby programming language that runs on the Java Virtual Machine. It offers true parallelism without a glo… | 99 | 3923 | active |
| Mezzano Mezzano is an operating system written entirely in Common Lisp, featuring its own compiler, GUI, networking stack, and file system support.… | 67 | 3914 | active |
| nathanhoad/godot_dialogue_manager Dialogue Manager is a Godot 4 addon providing a stateless branching dialogue editor and runtime for games. It lets developers write nonline… | 96 | 3884 | active |
| misprit7/computerraria Computerraria is a fully compliant RISC-V (rv32i) computer built entirely inside the wiring system of the game Terraria, paired with a Rust… | 70 | 3861 | active |
| d5/tengo Tengo is a small, dynamic, fast scripting language implemented in pure Go, compiled to bytecode and executed on a stack-based VM. It is des… | 66 | 3840 | stable |
| ptitSeb/box86 Box86 is a Linux userspace x86 (32-bit) emulator written in C, targeted at ARM Linux devices. It uses a dynamic recompiler (dynarec) and na… | 65 | 3807 | active |
| quickjs-ng/quickjs QuickJS-NG is a small, embeddable JavaScript engine written in C that aims to support the latest ECMAScript specification. It is an activel… | 88 | 3805 | active |
| facebookincubator/MetaPython Meta's fork of the CPython runtime (historically named Cinder), maintained by Facebook Incubator. It tracks upstream Python 3.14+ and pairs… | 77 | 3793 | active |
| bigskysoftware/_hyperscript hyperscript is a small, HyperTalk-inspired scripting language for the web that lets you embed behavior directly in HTML via attributes like… | 76 | 3764 | active |
| HigherOrderCO/Kind Kind is a minimal proof language and proof checker based on dependent type theory and lambda calculus, rewritten from JavaScript to Haskell… | 23 | 3760 | active |
| olegos2/mobox Mobox is a shell-based installer and management tool that runs Windows x86/x86_64 applications on Android via Termux, using Box64/Box86 for… | 10 | 3747 | active |
| steveicarus/iverilog Icarus Verilog is an open-source Verilog HDL compilation system that compiles IEEE 1364 Verilog and a growing subset of SystemVerilog (IEEE… | 77 | 3684 | active |
| Urbit Urbit is a personal server stack built from scratch, consisting of an operating system kernel (Arvo), a virtual machine runtime (Vere), and… | 95 | 3620 | active |
| dafny-lang/dafny Dafny is a verification-aware programming language with native support for writing specifications and a built-in static verifier powered by… | 73 | 3578 | active |
| OpenGOAL OpenGOAL is a project that decompiles the Jak & Daxter PS2 games and recompiles them into native x86-64 ports, including a from-scratch imp… | 100 | 3574 | active |
| Eclipse OpenJ9 Eclipse OpenJ9 is an independent, enterprise-grade Java Virtual Machine implementation for OpenJDK, built on Eclipse OMR. It is optimized f… | 94 | 3547 | active |
| AmrDeveloper/GQL GitQL is a SQL-like query language with an in-memory query engine, implemented in Rust, that executes queries directly on .git files withou… | 72 | 3512 | active |
| scala/scala The Scala 2 programming language compiler and standard library, hosted by the Scala organization. Scala 2 is in maintenance mode, with acti… | 78 | 14562 | maintenance |
| gluon Gluon is a small, statically-typed functional programming language with type inference, implemented in Rust and designed for embedding in a… | 91 | 3451 | active |
| winevdm winevdm (otvdm) is a 16-bit Windows application emulator that lets Win16 executables (Windows 1.x through 3.1) run on 64-bit Windows. It co… | 66 | 3424 | active |
| skulpt/skulpt Skulpt is a JavaScript implementation of the Python programming language that runs entirely in the browser. It is primarily used to embed i… | 66 | 3401 | active |
| oils-for-unix/oils Oils is a Unix shell project providing OSH, a bash-compatible shell that runs existing scripts, and YSH, a modern shell language for users … | 76 | 3397 | active |
| microsoft/Power-Fx Microsoft Power Fx is a low-code general-purpose programming language based on spreadsheet-like formulas, strongly typed, declarative, and … | 66 | 3365 | active |
| waf/CSharpRepl A cross-platform command-line C# REPL distributed as a .NET global tool, built on Roslyn. It offers syntax highlighting, intellisense, NuGe… | 92 | 3352 | active |
| virtualagc/virtualagc Virtual AGC is a project providing emulators for the Apollo Guidance Computer (AGC), Abort Guidance System (AGS), and related peripherals l… | 68 | 3308 | active |
| root-project/root ROOT is a C++ data analysis framework developed at CERN for storing, processing, and visualizing large scientific datasets, with a columnar… | 96 | 3302 | stable |
| jupyter-xeus/xeus-cling xeus-cling is a Jupyter kernel for the C++ programming language, built on the Cling C++ interpreter and the native xeus implementation of t… | 51 | 3297 | active |
| BNB Smart Chain BNB Smart Chain (BSC) is an EVM-compatible blockchain client implemented as a fork of go-ethereum, using Proof of Staked Authority (PoSA) w… | 96 | 3290 | active |
| ghc/ghc The Glasgow Haskell Compiler (GHC), the state-of-the-art open-source compiler and interactive environment (GHCi) for the Haskell functional… | 77 | 3275 | active |
| jcubic/jquery.terminal jQuery Terminal is a JavaScript library (jQuery plugin) for creating web-based terminal emulators with custom command-line interpreters. It… | 99 | 3239 | stable |
| riscv-software-src/riscv-isa-sim Spike is the official RISC-V ISA simulator, providing a functional model of one or more RISC-V harts. It implements a broad range of RISC-V… | 66 | 3238 | active |
| truffleruby/truffleruby TruffleRuby is a high-performance implementation of the Ruby programming language built on GraalVM's Truffle framework. It aims for full MR… | 92 | 3227 | active |
| saghul/txiki.js txiki.js is a tiny JavaScript runtime built on the QuickJS-ng engine and libuv, targeting modern ECMAScript and WinterTC compliance. It shi… | 92 | 3207 | active |
| TypeStrong/ts-node ts-node is a TypeScript execution engine and REPL for Node.js that JIT-transforms TypeScript into JavaScript so it can be run directly with… | 23 | 13119 | maintenance |
| Tilck Tilck is a tiny educational Linux-compatible kernel written in C and assembly, targeting i386 and riscv64 with UEFI boot support. It implem… | 75 | 3132 | active |
| Common Expression Language (CEL) cel-go is a Go implementation of the Common Expression Language (CEL), a fast, portable, non-Turing complete expression language with gradu… | 96 | 3121 | stable |
| GZDoom GZDoom is a modder-friendly source port of the Doom engine supporting all Doom engine games, with modern OpenGL and Vulkan renderers and a … | 70 | 3107 | active |
| Stacks The reference Rust implementation of the Stacks blockchain, a layer-2 network secured by Bitcoin via Proof of Transfer (PoX) mining. It run… | 94 | 3061 | active |
| TinyCC/tinycc TinyCC (tcc) is a very small and fast ANSI C compiler that can compile, link, and run C code directly, including as shebang-style C scripts… | 75 | 3041 | active |
| dotnet-script/dotnet-script dotnet-script is a .NET global tool that lets you run C# scripts (.csx) directly from the .NET CLI, with inline NuGet package references an… | 78 | 3012 | active |
| chaosprint/glicol Glicol is a graph-oriented live coding language for computer music with both its language and audio DSP engine written in Rust. It compiles… | 26 | 3009 | active |
| HansKristian-Work/vkd3d-proton vkd3d-proton is a fork of WineHQ's VKD3D that implements the Direct3D 12 API on top of Vulkan. It serves as the D3D12 translation layer use… | 91 | 3005 | active |
| nickel-lang/nickel Nickel is a configuration language that generates static configuration files like JSON, YAML, and XML, essentially 'JSON with functions'. I… | 93 | 3002 | active |
| google/mangle Mangle is a deductive database programming language implemented as an embeddable Go library. It extends Datalog with aggregation, function … | 73 | 2993 | active |
| UE4SS-RE/RE-UE4SS UE4SS is an injectable Lua scripting system and C++ modding API for Unreal Engine 4/5 games, along with an SDK generator, blueprint mod loa… | 67 | 2991 | active |
| klee/klee KLEE is a dynamic symbolic execution engine and symbolic virtual machine built on LLVM, which executes programs with symbolic inputs to aut… | 88 | 2985 | active |
| ashmind/SharpLab SharpLab is a .NET code playground (source of sharplab.io) that shows intermediate steps and results of code compilation, including decompi… | 34 | 2981 | active |
| Espruino Espruino is an open-source JavaScript interpreter and firmware for microcontrollers, designed to run on devices with as little as 128kB Fla… | 77 | 2978 | active |
| scarsty/kys-cpp A completed C++ remake of the classic Chinese wuxia RPG 'Jin Yong's Heroes' (金庸群侠传), built with SDL3. It supports classic turn-based combat… | 64 | 2969 | stable |
| zeas2/Kirikiroid2 Kirikiroid2 is a cross-platform port of the Kirikiri2/KirikiriZ visual novel game engine, allowing Kirikiri-based games to run on platforms… | 23 | 2936 | active |
| Agda Agda is a dependently typed functional programming language that doubles as an interactive theorem prover based on intuitionistic type theo… | 86 | 2931 | active |
| rui314/chibicc chibicc is a small C compiler written in C that implements most of the C11 standard and can compile real-world programs like Git, SQLite, a… | 32 | 11914 | maintenance |
| terralang/terra Terra is a low-level system programming language that is embedded in and meta-programmed by the Lua programming language. It allows Lua cod… | 92 | 2914 | active |
| JuliaLang/IJulia.jl IJulia is a Jupyter kernel that lets you run the Julia language inside Jupyter Notebook, JupyterLab, and nteract. It combines Julia's compu… | 87 | 2908 | active |
| GHDL GHDL is an open-source analyzer, compiler, simulator, and experimental synthesizer for the VHDL hardware description language, supporting I… | 79 | 2907 | active |
| Solar2D Game Engine Solar2D (formerly Corona SDK) is a free, open-source, Lua-based 2D game engine for building mobile, desktop, TV, and HTML5 apps from a sing… | 99 | 2889 | active |
| mlua mlua is a Rust library providing safe, high-level bindings to Lua 5.5/5.4/5.3/5.2/5.1 (including LuaJIT) and Luau, with async/await support… | 91 | 2870 | active |
| ScummVM ScummVM is a cross-platform application that lets you play classic point-and-click adventure games, text adventures, and RPGs by replacing … | 91 | 2861 | stable |
| Yarn Spinner Yarn Spinner is the core compiler and engine-agnostic runtime for the Yarn dialogue language, a screenplay-like format for writing interact… | 82 | 2856 | stable |
| TidalCycles Strudel is a web-based environment for live coding algorithmic music patterns, offering a faithful JavaScript port of the Haskell-based Tid… | 10 | 2846 | active |
| symfony/expression-language A Symfony PHP component providing an engine that compiles and evaluates one-line expressions with a syntax similar to PHP and Twig. It acts… | 94 | 2838 | stable |
| mono/mono Mono is an open source implementation of Microsoft's .NET Framework based on the ECMA standards for C# and the Common Language Runtime, inc… | 32 | 11466 | maintenance |
| handsontable/hyperformula HyperFormula is an open-source headless spreadsheet engine written in TypeScript that parses and evaluates Excel-compatible spreadsheet for… | 95 | 2812 | active |
| IoLanguage/io Io is a small, dynamic prototype-based programming language implemented in C, inspired by Self, Smalltalk, Lisp, and Lua, where everything … | 67 | 2803 | active |
| Tencent/UnLua UnLua is a highly optimized Lua scripting plugin for Unreal Engine that lets UE programmers write gameplay logic in Lua with zero learning … | 53 | 2791 | active |
| JSPatch JSPatch is a library that bridges Objective-C and JavaScript using the Objective-C runtime, allowing JavaScript code to call any Objective-… | 32 | 11316 | maintenance |
| clasp-developers/clasp Clasp is a Common Lisp implementation that compiles to native code via LLVM and seamlessly interoperates with C++ libraries and programs. I… | 82 | 2785 | active |
| google/starlark-go Starlark in Go is a Go implementation of the Starlark interpreter, a deterministic dialect of Python designed as an embedded configuration … | 77 | 2783 | stable |
| WAVM/WAVM WAVM is a WebAssembly virtual machine designed for non-browser applications, using LLVM to JIT-compile WebAssembly to near-native machine c… | 64 | 2782 | active |
| bpython/bpython bpython is a fancy curses-based interface to the Python interactive interpreter that adds IDE-like features such as in-line syntax highligh… | 67 | 2776 | stable |
| EthereumJS A modular TypeScript monorepo of Ethereum execution-layer libraries including an EVM interpreter, transaction and block handling, Merkle Pa… | 92 | 2759 | active |
| flix/flix Flix is a statically typed, effect-oriented programming language that combines functional, imperative, and logic programming paradigms, dev… | 99 | 2758 | active |
| Fennel Fennel is a Lisp dialect that compiles to Lua with zero runtime overhead and full Lua compatibility. It supports compile-time macros, patte… | 49 | 2758 | stable |
| inkle/inky Inky is a desktop IDE for ink, inkle's narrative scripting language used for interactive branching stories in games. It lets writers edit i… | 67 | 2742 | stable |
| aardappel/lobster Lobster is a statically typed, general-purpose programming language with a Python-like indentation syntax, flow-sensitive type inference, a… | 94 | 2741 | active |
| sharkdp/numbat Numbat is a statically typed programming language for scientific computations with first-class support for physical dimensions and units, i… | 93 | 2702 | active |
| cc65 cc65 is a complete cross-development suite for 65(C)02-based systems, including a C compiler, macro assembler, linker, archiver, and simula… | 67 | 2695 | active |
| IHaskell IHaskell is a Jupyter kernel that lets you run Haskell code interactively in Jupyter frontends like the console and notebook. It supports G… | 72 | 2661 | active |
| vnmakarov/mir MIR is a lightweight JIT compiler project built around a strongly typed Medium Internal Representation, with a C11 JIT compiler and interpr… | 59 | 2661 | active |
| zhanyong-wan/dongbei dongbei is a novelty programming language whose keywords are based on Northeastern Chinese (Dongbei) dialect vocabulary, implemented on top… | 66 | 2659 | active |
| near/nearcore nearcore is the reference client implementation of the NEAR Protocol, a sharded proof-of-stake blockchain written in Rust. It runs full nod… | 97 | 2618 | active |
| mattwparas/steel Steel is an embeddable Scheme dialect interpreter implemented in Rust, running on a bytecode virtual machine with mostly R5RS compliance. I… | 86 | 2592 | active |
| hyperjumptech/grule-rule-engine Grule is a rule engine library for Go, inspired by JBoss Drools, with its own Domain-Specific Language (GRL) for defining production rules.… | 60 | 2531 | active |
| peachpiecompiler/peachpie PeachPie is an open-source PHP compiler built on Microsoft Roslyn that compiles PHP code to .NET and .NET Core, with a reimplemented PHP ru… | 70 | 2486 | active |
| lfe/lfe Lisp Flavoured Erlang (LFE) is a Lisp syntax front-end to the Erlang compiler, producing code fully compatible with normal Erlang. It inclu… | 85 | 2460 | active |