PyPy is a very fast and compliant implementation of the Python language.
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An interpreter for the Lua language, written entirely in C# for the .NET, Mono, Xamarin and Unity3D platforms, including handy remote debugger facilities.
- moonsharp
- mono
- debugger
- interpreter
A simple, lightweight, flexible, embeddable, portable and multi-paradigm dynamic programming language for developing applications, tools, and domain-specific languages
[INACTIVE] Avian is a lightweight virtual machine and class library designed to provide a useful subset of Java's features, suitable for building self-contained applications.
- java
- jit-compiler
- openjdk
- jvm
Rust virtual machine and JIT compiler for eBPF programs
- jit-compiler
- ebpf
- ebpf-programs
- rust
Gno: An interpreted, stack-based Go virtual machine to build succinct and composable apps + gno.land: a blockchain for timeless code and fair open-source.
- gno
- gnoland
- gnolang
- bft
Userspace eBPF VM
math and logic formula parser and evaluator
- formula
- calculator
- evaluate-expressions
- safeeval
Universal toplevel for OCaml
Expression evaluation in golang
- evaluate-expressions
- expression-evaluator
- gval
- expression-language
The reference P4 software switch
- p4
- bmv2
- p4lang
An OpenJDK release maintained and supported by SAP
- openjdk
- java
- open-source
- jdk
A lightweight Lua VM for the browser
QuickJS with durable execution: suspend running JS, snapshot the whole heap, resume it in another process. Native TypeScript, a REPL that survives restarts, Rust bindings.
- c
- durable-execution
- embeddable
- hibernation
A pure-Go JavaScript runtime built for running many small plugin sandboxes fast.
- golang
- javascript
- sandbox
JQuick Java: a lightweight Java-like scripting language for rule engines. Declare, parse and execute business rules at runtime via XML or inline scripts—no restart needed. Java 8+, embeddable, with LSP and IDEA plugin support.
Clinical Quality Language (CQL) is an HL7 specification for the expression of clinical knowledge that can be used within both the Clinical Decision Support (CDS) and Clinical Quality Measurement (CQM) domains. This repository contains complementary tooling in support of that specification.
- cql
- clinical-quality-language
- cds
- java
Owi: Seamless program analysis for C, C++, Go, Haskell, LLVM, Rust, Wasm and Zig.
SquirrelJME is a Java ME 8 Virtual Machine for embedded and Internet of Things devices. It has the ultimate goal of being 99.9% compatible with the Java ME standard.
- squirreljme
- java
- java-me
- iot
Runtime parser for string expressions (formulas, method calls). Builds dynamic LINQ expression tree and compiles it to lambda delegate.
- evalexpr
- evaluator
- dot-net
- dotnetcore
A best-of-breed language with a holistic approach to moving the needle
Railo is an Open Source CFML Server
A Coq specification of ECMAScript 5 (JavaScript) with verified reference interpreter
A TLA+ interpreter and model checker in TypeScript
- formal-verification
- tlaplus
- typescript