function: testing
1662 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| Q00/ouroboros Ouroboros is an 'Agent OS' that manages AI coding agent workflows through interview-gated requirement capture, staged evaluation, and a bud… | 78 | 5687 | active |
| voidzero-dev/vite-plus Vite+ (the `vp` CLI) is a unified web development toolchain that bundles Vite, Vitest, Rolldown, Oxlint, Oxfmt, and Vite Task into one zero… | 87 | 5661 | active |
| google/clusterfuzz ClusterFuzz is Google's scalable fuzzing infrastructure that finds security and stability bugs in software, serving as the backend for OSS-… | 95 | 5597 | active |
| buildbot/buildbot Buildbot is an open-source Python framework for automating software build, test, and release processes, including continuous integration an… | 78 | 5470 | stable |
| spaceandtimefdn/sxt-proof-of-sql A Rust library implementing Proof of SQL, a zero-knowledge proof protocol that allows SQL queries to be executed and cryptographically veri… | 84 | 5389 | active |
| ag2ai/faststream FastStream is an asynchronous Python framework for building event-driven applications on top of message brokers like Kafka, RabbitMQ, NATS,… | 98 | 5316 | active |
| dotnet/skills A curated collection of agent skills and custom agents from the .NET team, packaged as plugins for AI coding agents like Copilot CLI and Cl… | 64 | 5256 | active |
| mock-server/mockserver-monorepo MockServer is an open-source HTTP(S) mock server and proxy for testing that can mock APIs, record and inspect live traffic, and inject fail… | 99 | 4953 | active |
| sbt/sbt sbt is the interactive build tool for Scala and Java projects, using a Scala-based DSL (build.sbt) to define parallel task graphs. It provi… | 99 | 4940 | active |
| ProvableHQ/leo Leo is an imperative, statically-typed programming language for writing zero-knowledge applications that compile to circuits for the Aleo b… | 98 | 4821 | active |
| darrenhinde/OpenAgentsControl OpenAgentsControl (OAC) is an AI agent framework built on OpenCode that enforces plan-first development workflows with approval-based execu… | 73 | 4786 | active |
| pgcentralfoundation/pgrx pgrx is a Rust framework for developing PostgreSQL extensions, providing idiomatic and safe bindings to Postgres internals. It includes car… | 96 | 4767 | active |
| chipsalliance/chisel Chisel is an open-source hardware description language (HDL) embedded in Scala for describing digital electronics at the register-transfer … | 98 | 4763 | stable |
| Qix-/better-exceptions A Python library that automatically replaces the default exception output with pretty, colorized, and more informative tracebacks that incl… | 64 | 4720 | active |
| harbor-framework/harbor Harbor is a Python framework from the creators of Terminal-Bench for evaluating and optimizing AI agents and language models in containeriz… | 85 | 4664 | active |
| nunomaduro/collision Collision is a PHP library that provides beautiful, readable error reporting for command-line applications. Built on top of Whoops, it is b… | 75 | 4661 | active |
| phodal/auto-dev AutoDev is an AI-native multi-agent coding development platform built on Kotlin Multiplatform, distributed as an IntelliJ IDEA plugin, VS C… | 85 | 4535 | active |
| dhall-lang/dhall-lang Dhall is a programmable, non-Turing-complete configuration language with functions, types, and imports, formally specified so multiple lang… | 67 | 4475 | active |
| qinguoyi/TinyWebServer A lightweight C++ web server for Linux built with a thread pool, non-blocking sockets, epoll (ET and LT), and Reactor/simulated-Proactor ev… | 32 | 19653 | maintenance |
| ankane/strong_migrations A Ruby gem for Rails that catches unsafe database migrations in development by detecting potentially dangerous operations like removing col… | 76 | 4438 | stable |
| zio/zio ZIO is a zero-dependency Scala library for type-safe, composable asynchronous and concurrent programming, built on lightweight fibers. It p… | 89 | 4410 | stable |
| link1st/go-stress-testing A stress/load testing tool written in Go that simulates concurrent users with goroutines to measure QPS and connection capacity. It support… | 74 | 4399 | active |
| EvolvingLMMs-Lab/lmms-eval lmms-eval is a unified Python framework for evaluating large multimodal models across text, image, video, and audio tasks, with 100+ benchm… | 85 | 4377 | active |
| zenc-lang/zenc Zen C is a modern, strictly typed systems programming language that transpiles to human-readable GNU C/C11, offering type inference, patter… | 73 | 4311 | active |
| httprunner/httprunner HttpRunner (hrp) is an open-source, Go-based all-in-one testing framework for API testing (HTTP/HTTP2/WebSocket/RPC), load testing, and mul… | 48 | 4295 | active |
| JonathanSalwan/Triton Triton is a dynamic binary analysis library providing dynamic symbolic execution, taint analysis, and ISA semantics for x86, x86-64, ARM32,… | 65 | 4274 | active |
| mybatis/spring-boot-starter An official Spring Boot starter that autoconfigures MyBatis, the SQL mapping framework, for Spring Boot applications. It handles session fa… | 89 | 4249 | stable |
| kirodotdev/Kiro Kiro is an agentic IDE and CLI that helps developers go from prototype to production using spec-driven development, agent hooks, powers, an… | 63 | 4225 | active |
| idealvin/coost Coost is a lightweight, cross-platform C++11 base library similar to Boost but much smaller (~1MB static library). It bundles coroutines, a… | 33 | 4211 | active |
| cake-build/cake Cake (C# Make) is a cross-platform build automation system that lets developers write build scripts in C# using a DSL built on the Roslyn c… | 87 | 4186 | stable |
| ministackorg/ministack MiniStack is a free, MIT-licensed local AWS emulator that mimics 60+ AWS services (S3, SQS, SNS, DynamoDB, Lambda, EC2, RDS, ElastiCache, E… | 77 | 4140 | active |
| firecow/gitlab-ci-local A CLI tool that runs GitLab CI pipelines locally using shell or Docker executors, so developers can test .gitlab-ci.yml without pushing to … | 99 | 4065 | active |
| xcpretty/xcpretty xcpretty is a fast, flexible command-line formatter for xcodebuild output, written in Ruby and distributed as a gem. It pipes raw xcodebuil… | 38 | 4036 | stable |
| google/bundletool Bundletool is Google's command-line tool for building, manipulating, and testing Android App Bundles (.aab) and Android SDK Bundles. It can… | 63 | 4028 | active |
| laravel-zero/laravel-zero Laravel Zero is an unofficial micro-framework built on Laravel components, optimized for building command-line applications in PHP. It stri… | 66 | 3998 | active |
| IvanMurzak/Unity-MCP A Unity plugin, MCP server, and CLI that lets AI agents (Claude, Cursor, Copilot, Gemini, Codex, etc.) build, edit, and playtest Unity game… | 82 | 3989 | active |
| hardkoded/puppeteer-sharp PuppeteerSharp is a .NET port of the official Node.js Puppeteer API for controlling headless or headful Chrome and Firefox. It supports nav… | 99 | 3915 | active |
| InfyOmLabs/laravel-generator InfyOm Laravel Generator is a PHP/Laravel package that generates complete CRUD scaffolding—migrations, models, controllers, repositories, r… | 23 | 3823 | active |
| remorses/playwriter Playwriter is a Chrome extension plus CLI/MCP tool that lets AI agents control your real, already-logged-in Chrome browser by executing Pla… | 83 | 3818 | active |
| mailhog/MailHog MailHog is an email testing tool that runs a fake SMTP server and exposes a web UI and JSON API for inspecting outgoing messages. It can op… | 23 | 16138 | maintenance |
| reactor/reactor The Reactor Bill of Materials (BOM) is a curated set of compatible versions for Project Reactor modules such as reactor-core, reactor-netty… | 99 | 3693 | stable |
| fabric8io/kubernetes-client A Java client library providing access to the full Kubernetes and OpenShift REST APIs via a fluent DSL. It includes extensions for Knative,… | 96 | 3669 | active |
| garden-io/garden Garden is a DevOps automation CLI for developing and testing Kubernetes applications faster. It spins up production-like environments on de… | 99 | 3609 | active |
| httptoolkit/httptoolkit HTTP Toolkit is an open-source desktop application for intercepting, inspecting, and rewriting HTTP(S) traffic on Windows, Linux, and Mac. … | 62 | 3608 | active |
| lowRISC/opentitan OpenTitan is an open-source silicon Root of Trust (RoT) project providing commercial-grade, security-certified hardware IP blocks written i… | 83 | 3607 | stable |
| histoire-dev/histoire Histoire is a Vite-powered tool for building interactive component playgrounds (story books) for Vue and Svelte projects. It lets developer… | 82 | 3571 | active |
| denoland/std The official Deno Standard Library, a collection of high-quality TypeScript packages published on JSR covering assertions, async utilities,… | 96 | 3558 | stable |
| yinkaisheng/Python-UIAutomation-for-Windows A Python 3 wrapper around Microsoft's UIAutomation API for automating and inspecting Windows desktop application GUIs. It supports controls… | 70 | 3557 | active |
| okteto/okteto Okteto is an open-source CLI and platform for developing, testing, and running applications directly inside Kubernetes clusters with produc… | 98 | 3534 | active |
| truera/trulens TruLens is a Python library for evaluating and tracking LLM-based applications and AI agents. It provides OpenTelemetry-native tracing of e… | 95 | 3525 | active |
| visionml/pytracking PyTracking is a PyTorch-based framework for visual object tracking and video object segmentation, providing official implementations of tra… | 23 | 3514 | active |
| langwatch/langwatch LangWatch is an open-source LLMOps platform for LLM evaluation, AI agent testing, tracing, and production observability. It combines agent … | 90 | 3511 | active |
| Farama-Foundation/PettingZoo PettingZoo is a Python library providing a standard API for multi-agent reinforcement learning environments, analogous to Gymnasium but for… | 89 | 3498 | active |
| trailblazer/trailblazer Trailblazer is a Ruby framework of around 40 gems that structures business logic through abstractions like operations (service objects), fo… | 46 | 3477 | stable |
| dotnet/roslynator Roslynator is a set of code analysis tools for C# built on the Roslyn compiler platform. It ships as IDE extensions for Visual Studio and V… | 98 | 3475 | active |
| sigp/lighthouse Lighthouse is an open-source Ethereum consensus (beacon chain) client written in Rust, maintained by Sigma Prime. It implements the Ethereu… | 99 | 3466 | stable |
| Canop/bacon Bacon is a background code checker for Rust that watches source directories and reruns cargo check, clippy, tests, or custom jobs on file c… | 99 | 3392 | active |
| Netflix/dgs-framework DGS Framework (Domain Graph Service) is a GraphQL server framework for Spring Boot, developed and maintained by Netflix. It provides an ann… | 95 | 3385 | active |
| google/honggfuzz Honggfuzz is a security-oriented, feedback-driven evolutionary fuzzer that uses software and hardware code coverage to discover bugs in bin… | 62 | 3376 | active |
| google/differential-privacy Google's collection of differential privacy libraries for computing ε- and (ε, δ)-differentially private statistics over datasets. It inclu… | 78 | 3346 | active |
| punkpeye/fastmcp FastMCP is a TypeScript framework for building MCP (Model Context Protocol) servers with tools, resources, prompts, sessions, and authentic… | 84 | 3255 | active |
| ember-cli/ember-cli Ember CLI is the official command line utility for the Ember.js framework, providing project scaffolding, a Broccoli-based asset build pipe… | 99 | 3237 | stable |
| dotnet/extensions A suite of .NET libraries from Microsoft providing production-ready capabilities such as resilience pipelines, telemetry, diagnostics, comp… | 98 | 3202 | active |
| Wisser/Jailer Jailer is a Java-based tool for database subsetting and relational data browsing. It extracts small, referentially intact slices of product… | 99 | 3194 | active |
| revel/revel Revel is a high-productivity, full-stack MVC web framework for the Go language. It bundles routing, parameter parsing, validation, sessions… | 23 | 13219 | maintenance |
| mozilla/web-ext web-ext is Mozilla's command line tool for building, running, linting, signing, and testing WebExtensions. It streamlines Firefox extension… | 98 | 3132 | active |
| apiato/apiato Apiato is a PHP framework built on top of Laravel for creating scalable, testable, API-centric applications using the Porto architectural p… | 78 | 3109 | active |
| MakazhanAlpamys/Soup Soup is a Python CLI that fine-tunes and post-trains LLMs from a single YAML config, supporting 23 methods (SFT, DPO, ORPO, SimPO, KTO, etc… | 77 | 3102 | active |
| davidfowl/TodoApp A sample Todo application built with ASP.NET Core, featuring a Blazor WebAssembly frontend and a Minimal APIs REST backend. It demonstrates… | 62 | 3102 | active |
| fibjs/fibjs fibjs is a JavaScript runtime built on Chrome's V8 engine that uses fiber-based coroutines with a synchronous, non-blocking IO model. It sh… | 67 | 3098 | active |
| tsedio/tsed Ts.ED is a TypeScript framework for Node.js and Bun built on top of Express.js, Koa.js, or Fastify.js, using decorators and class-based arc… | 95 | 3087 | active |
| samber/cc-skills-golang A curated collection of 46 Go-specific agent skills (reusable instruction sets) for AI coding assistants like Claude Code, Codex, Gemini CL… | 81 | 3077 | active |
| Chachamaru127/claude-code-harness A development harness plugin for Claude Code (and Codex CLI, Cursor, Grok) that enforces a disciplined Plan→Work→Review→Release loop with s… | 79 | 3072 | active |
| open-quantum-safe/liboqs liboqs is an open source C library providing implementations of quantum-resistant (post-quantum) key encapsulation mechanisms and digital s… | 88 | 3044 | active |
| bethgelab/foolbox Foolbox is a Python library for generating adversarial examples that fool deep neural networks, with state-of-the-art gradient-based and de… | 48 | 2972 | active |
| userver-framework/userver userver is a production-ready open-source C++ asynchronous framework with coroutines for building microservices, services, and utilities. I… | 92 | 2956 | stable |
| ljlm0402/typescript-express-starter An interactive CLI generator that scaffolds production-ready TypeScript Express REST API projects with a configurable stack. It offers 10+ … | 82 | 2873 | active |
| lorisleiva/laravel-actions A Laravel package that lets developers encapsulate a single task in one PHP class and run it as a controller, job, event listener, command,… | 95 | 2867 | stable |
| doctrine/data-fixtures Doctrine Data Fixtures is a PHP library for managing and loading data fixtures into databases via the Doctrine ORM or ODM. It provides a fi… | 87 | 2851 | stable |
| rpamis/comet Comet is an npm-distributed CLI and Skill platform that gives AI coding agents a resumable, phase-guarded workflow for long-running tasks, … | 80 | 2849 | active |
| beefytech/Beef Beef is an open-source, performance-oriented compiled programming language derived from C# syntax with C-style low-level control, bundled w… | 67 | 2846 | active |
| http4k/http4k http4k is a lightweight, functional HTTP toolkit for Kotlin where applications are just functions from Request to Response, with no annotat… | 95 | 2783 | stable |
| pedestal/pedestal Pedestal is a set of Clojure libraries for building server-side services, APIs, and web applications on the JVM. It provides an interceptor… | 63 | 2779 | active |
| microsoft/promptflow Prompt flow is a suite of Python SDK, CLI, and VS Code extension tools for the end-to-end development of LLM-based AI applications, linking… | 75 | 11229 | maintenance |
| mojolicious/mojo Mojolicious is a real-time web framework for Perl that supports MVC web applications, WebSockets, and non-blocking I/O with a built-in web … | 75 | 2747 | active |
| golevelup/nestjs A monorepo of NestJS modules and utilities from golevelup, including RabbitMQ integration (RPC and pub/sub), Hasura event handlers, Stripe … | 90 | 2739 | active |
| bcosca/fatfree Fat-Free Framework (F3) is a lightweight PHP micro-framework condensed into a single file for building dynamic web applications quickly. It… | 84 | 2714 | stable |
| redbadger/crux Crux is a Rust framework for cross-platform app development that shares business logic in a single Rust core across iOS, Android, and web. … | 98 | 2705 | active |
| postgres-ai/database-lab-engine DBLab Engine is an open-source platform that provides instant, full-size thin clones and branching of PostgreSQL databases using ZFS copy-o… | 89 | 2697 | active |
| dannagle/PacketSender Packet Sender is a free, open-source cross-platform utility for sending and receiving TCP, UDP, SSL, and DTLS packets, plus HTTP/HTTPS requ… | 88 | 2668 | active |
| UKGovernmentBEIS/inspect_ai Inspect is an open-source Python framework from the UK AI Security Institute for running large language model evaluations, with composable … | 71 | 2640 | active |
| symfony/demo The official Symfony Demo Application, a reference blog-style application demonstrating how to build web apps following Symfony best practi… | 95 | 2617 | active |
| firecamp-dev/firecamp Firecamp is an open-source, developer-first API development platform for designing, testing, and documenting REST, GraphQL, WebSocket, and … | 52 | 2607 | active |
| Ericsson/codechecker CodeChecker is an analyzer tooling, defect database and viewer extension for static and dynamic analyzer tools like Clang Static Analyzer a… | 99 | 2606 | active |
| visa/visa-vulnerability-agentic-harness VVAH is Visa's open-source agentic harness for autonomous vulnerability discovery, remediation, and validation using frontier AI models. It… | 67 | 2601 | active |
| Helvesec/rmux RMUX is a terminal multiplexer written in Rust that is tmux-compatible and natively supports Linux, macOS, and Windows (ConPTY). It ships t… | 78 | 2597 | active |
| apache/hamilton Apache Hamilton is a lightweight Python library for defining directed acyclic graphs (DAGs) of data transformations as plain, testable Pyth… | 91 | 2575 | active |
| Leonxlnx/unlazy unlazy is a skill for AI coding agents (Claude Code, Codex CLI) that enforces completion discipline via the Depth Tree method, splitting ta… | 57 | 2545 | active |
| friendlyanon/cmake-init cmake-init is an opinionated command-line tool that scaffolds modern CMake projects for executables, static/shared libraries, and header-on… | 64 | 2542 | active |
| google-coral/coralnpu Coral NPU is an open-source neural processing unit (NPU) hardware IP core from Google Research, built on the 32-bit RISC-V ISA with matrix,… | 73 | 2526 | active |