domain: testing
1069 products, primary matches first, then adoption-weighted; health v2 shown.
| Product | Health v2 | Stars | Maturity |
|---|---|---|---|
| foss42/apidash API Dash is an open-source, AI-powered cross-platform API client built with Flutter for creating and customizing HTTP and GraphQL requests,… | 66 | 2891 | active |
| GHDL GHDL is an open-source analyzer, compiler, simulator, and experimental synthesizer for the VHDL hardware description language, supporting I… | 82 | 2874 | active |
| renode/renode Renode is an open-source simulation and virtual development framework for complex embedded systems, letting you run unmodified firmware on … | 78 | 2832 | 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 |
| ColinIanKing/stress-ng stress-ng is a command-line stress testing tool with 380+ stressors that exercise CPU, memory, filesystem, and OS kernel interfaces. It is … | 95 | 2754 | active |
| flawiddsouza/Restfox Restfox is an offline-first, minimalistic HTTP and WebSocket testing client available as a web app (PWA) and desktop application. It suppor… | 74 | 2752 | 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 … | 72 | 2696 | active |
| firecamp-dev/firecamp Firecamp is an open-source, developer-first API development platform for designing, testing, and documenting REST, GraphQL, WebSocket, and … | 51 | 2609 | active |
| keikaavousi/fake-store-api FakeStoreAPI is a free hosted REST API that serves pseudo-real e-commerce JSON data including products, carts, users, and JWT login tokens.… | 32 | 2587 | stable |
| cocotb/cocotb cocotb is a coroutine-based Python framework for writing testbenches that verify VHDL, Verilog, and SystemVerilog RTL designs via cosimulat… | 88 | 2488 | stable |
| aloisdeniel/flutter_device_preview A Flutter package that simulates how a running app looks and behaves on other devices — screen size, pixel ratio, safe areas, locale, text … | 87 | 2409 | active |
| uptrain-ai/uptrain UpTrain is an open-source Python platform for evaluating and improving LLM applications, offering 20+ preconfigured evaluation checks cover… | 23 | 2364 | active |
| allenymt/PrivacySentry PrivacySentry is an Android privacy compliance toolkit combining a Gradle plugin with a runtime SDK, using annotations plus ASM bytecode in… | 49 | 2290 | active |
| Easy Mock Easy Mock is a self-hostable persistent web service that generates mock API data quickly and provides a visual interface for defining and m… | 23 | 8961 | maintenance |
| twitter/finatra Finatra is a lightweight Scala framework for building fast, testable HTTP and Thrift services on top of TwitterServer and Finagle. It provi… | 39 | 2272 | stable |
| rswag/rswag Rswag extends rspec-rails request specs with a Swagger-based DSL for describing and testing Rails API operations, then generates OpenAPI (S… | 72 | 2200 | active |
| MCPJam/inspector MCPJam is an open-source testing and evaluation platform for MCP server developers, providing an inspector playground, OAuth/EMA debugger, … | 82 | 2184 | active |
| samchon/nestia Nestia is a set of helper libraries for NestJS that turns plain TypeScript types into runtime validation, a typed client SDK, OpenAPI/Swagg… | 95 | 2176 | active |
| beam-community/bamboo Bamboo is an adapter-based email library for Elixir that separates email creation from delivery, with built-in adapters for services like M… | 69 | 1959 | stable |
| clj-kondo/clj-kondo clj-kondo is a static analyzer and linter for Clojure, ClojureScript, and EDN code that detects errors and style issues without executing t… | 93 | 1850 | active |
| evalplus/evalplus EvalPlus is a Python framework and benchmark suite for rigorously evaluating LLM-synthesized code, providing HumanEval+ and MBPP+ datasets … | 40 | 1805 | active |
| graphql-hive/graphql-inspector GraphQL Inspector is a suite of tools for validating and monitoring GraphQL schemas. It diffs two schemas to flag breaking, dangerous, or n… | 98 | 1763 | stable |
| GreenmaskIO/greenmask Greenmask is an open-source CLI utility for logical database dumping, anonymization, synthetic data generation, and restoration, production… | 93 | 1757 | active |
| mattpocock/evalite Evalite is a TypeScript-native eval runner for testing LLM-powered applications, built on Vitest with a local dev server UI for exploring o… | 60 | 1675 | active |
| VoidenHQ/voiden Voiden is an offline, Git-native API workspace built with Electron and TypeScript that lets developers design, test, and document APIs in p… | 86 | 1648 | active |
| bamlab/flashlight Flashlight is a CLI tool that audits Android apps (native, React Native, Flutter) and generates a performance score from aggregated metrics… | 68 | 1603 | active |
| wiztools/rest-client A Java-based application for testing HTTP and RESTful web services, available as both a desktop GUI and a CLI for batch execution of saved … | 41 | 1531 | stable |
| cheind/py-motmetrics py-motmetrics is a Python library for evaluating multiple object tracking (MOT) results with MOTChallenge-aligned CLEAR MOT, Identity, and … | 64 | 1487 | active |
| beyondcode/laravel-self-diagnosis A Laravel package that runs self-diagnosis checks on your application via an artisan command. It verifies environment configuration, depend… | 68 | 1451 | active |
| google/oss-fuzz-gen A Google framework that uses large language models to automatically generate fuzz targets for real-world C/C++, Java, and Python projects, … | 58 | 1434 | active |
| LouisBrunner/valgrind-macos A patched mirror of Valgrind that adds support for recent macOS versions, distributed via a Homebrew tap. It lets developers run memory err… | 77 | 1388 | active |
| 3lvis/Networking Networking is a Swift HTTP networking library built on URLSession with a simple, singleton-free API. It offers built-in request stubbing/mo… | 79 | 1378 | active |
| ihsanbal/LoggingInterceptor An OkHttp interceptor library that provides pretty, configurable logging of HTTP requests and responses, with support for custom log levels… | 63 | 1361 | active |
| active-hash/active_hash A Ruby gem providing an ActiveRecord-like base class backed by in-memory hashes, YAML files, or custom file data sources instead of a datab… | 78 | 1355 | active |
| warmuuh/milkman Milkman is an extensible request/response workbench inspired by Postman, built with JavaFX instead of Electron for fast startup and low mem… | 76 | 1337 | active |
| anandthakker/doiuse doiuse is a CSS linter that checks stylesheets for browser compatibility issues against the Can I Use database. It works as a CLI tool, a P… | 61 | 1304 | active |
| chromium/permission.site A simple website for testing how web APIs interact with browser permission prompts, covering features like geolocation, camera, Bluetooth, … | 76 | 1250 | active |
| Tencent/GT GT (Great Tit) is a portable on-device debugging tool from Tencent that acts as an Integrated Debug Environment running directly on smartph… | 23 | 4399 | maintenance |
| fi3ework/vite-plugin-checker A Vite plugin that runs type checking and linting tools such as TypeScript, vue-tsc, ESLint, Biome, and Stylelint in a worker thread. It su… | 93 | 1239 | active |
| meziantou/Meziantou.Analyzer Meziantou.Analyzer is a C# Roslyn analyzer distributed as a NuGet package that performs static analysis to detect bugs, security issues, an… | 96 | 1190 | active |
| langchain-ai/openevals OpenEvals is a library of readymade evaluators for testing LLM applications, including LLM-as-judge evaluators and reference-based/referenc… | 88 | 1187 | active |
| sbdchd/squawk Squawk is a linter for Postgres migrations and SQL that catches statements which could cause downtime, such as blocking locks or breaking s… | 95 | 1165 | active |
| just-jeb/angular-builders A collection of community Angular CLI builders that extend the Angular build facade with custom webpack/esbuild configuration and Jest unit… | 68 | 1162 | active |
| fuzzland/ityfuzz ItyFuzz is a blazing-fast bytecode-level hybrid fuzzer for EVM and MoveVM smart contracts that combines symbolic (concolic) execution with … | 55 | 1110 | active |
| pa11y/pa11y-dashboard Pa11y Dashboard is a self-hosted Node.js web interface for the Pa11y accessibility reporter that automatically tests web pages for accessib… | 79 | 1089 | active |
| dotnet/crank Crank is Microsoft's benchmarking infrastructure used by the .NET team to run performance benchmarks, including TechEmpower web framework s… | 77 | 1080 | active |
| googlesamples/android-testdpc Test DPC is a sample Device Policy Controller app for Android Enterprise that lets developers test how their apps behave in managed context… | 52 | 1034 | active |
| Halmos Halmos is a symbolic testing tool for EVM smart contracts, primarily targeting Solidity projects via a Foundry frontend. It leverages exist… | 49 | 1028 | active |
| mrwill84/DOClever DOClever is a free, open-source API management platform for small and medium teams, offering interface editing, debugging, mock serving, au… | 49 | 2903 | maintenance |
| APIs-guru/graphql-faker A CLI tool that mocks GraphQL APIs with realistic faked data based on GraphQL SDL, using @fake, @examples, and @listLength directives with … | 32 | 2713 | maintenance |
| mgechev/codelyzer Codelyzer is a set of TSLint rules for static code analysis of Angular TypeScript projects, enforcing the official Angular style guide. It … | 68 | 2467 | maintenance |
| miloyip/nativejson-benchmark A benchmark suite evaluating the conformance and performance (speed, memory, code size) of 41 open-source C/C++ JSON parsing and generation… | 23 | 2067 | maintenance |
| hamelsmu/evals-skills A collection of skills (prompts/instructions) that guide AI coding agents like Claude Code through building and auditing LLM evaluation pip… | 10 | 1664 | maintenance |
| boyney123/mockit MockIt is a self-hosted tool for quickly creating and managing mocked API endpoints through a web interface, running via Docker. It support… | 23 | 1574 | maintenance |
| fullstackproltd/AspNetCoreSpa A fullstack single-page application template combining ASP.NET Core 7.0 with Angular 15, featuring IdentityServer4 authentication, Entity F… | 23 | 1532 | maintenance |
| bradleyjkemp/grpc-tools A suite of Go-based gRPC debugging tools, including grpc-dump (a transparent proxy that logs gRPC/gRPC-Web traffic as JSON), grpc-replay, g… | 23 | 1238 | maintenance |
| squizlabs/HTML_CodeSniffer HTML_CodeSniffer is a client-side JavaScript library that checks HTML documents or source code for violations of defined coding and accessi… | 23 | 1146 | maintenance |
| seppo0010/rlite rlite is a self-contained, serverless, zero-configuration, transactional Redis-compatible database engine written in C, analogous to SQLite… | 32 | 1067 | maintenance |
| jpillora/xhook XHook is a small JavaScript library that patches XMLHttpRequest to let you intercept and modify AJAX requests and responses in the browser.… | 23 | 1038 | maintenance |
| service-mocker/service-mocker Service Mocker is a frontend API mocking framework that uses service workers to intercept real HTTP requests without requiring any backend … | 10 | 1005 | maintenance |
| Postcatlab/postcat Postcat is an open-source, cross-platform API development and testing tool supporting REST and WebSocket protocols, with API design, docume… | 53 | 5542 | abandoned |
| philipwalton/html-inspector HTML Inspector is a customizable JavaScript code quality tool for auditing HTML markup, running in the browser or via a PhantomJS-based CLI… | 10 | 2329 | abandoned |
| gojp/goreportcard Go Report Card is a web application and CLI that grades the quality of Go projects using checks like gofmt, go vet, golint, and gocyclo, pr… | 10 | 2174 | abandoned |
| bahmutov/code-snippets A collection of JavaScript code snippets designed to be run in Chrome DevTools for performance profiling, debugging, and testing web pages.… | 23 | 1822 | abandoned |
| addyosmani/a11y A Node.js CLI tool and library that runs accessibility audits against URLs, local files, or glob patterns using Chrome Accessibility Develo… | 10 | 1722 | abandoned |
| iridakos/duckrails DuckRails is a self-hosted web application for quickly creating mock API endpoints with configurable responses, headers, status codes, dela… | 10 | 1710 | abandoned |
| carteb/carte-blanche Carte Blanche is a webpack plugin that provides an isolated development space for UI components with integrated fuzz testing, letting devel… | 10 | 1494 | abandoned |
| zackargyle/service-workers A collection of JavaScript tools for generating, testing, and experimenting with service workers, including a generator, a webpack plugin, … | 32 | 1280 | abandoned |
| WebPlatformTest/HTML5test HTML5test is a web application that scores how well a browser supports HTML5 and related web specifications, letting users compare results … | 10 | 1005 | abandoned |
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