Trending repositories

1.floci-io / floci

Light, fluffy, and always free - The AWS Local Emulator alternative

• aws
• aws-emulation
• localstack
• devops
• docker
• ec2
• +4 more

2.N4darae / shrt

A contract-driven gRPC regression harness for AI coding agents, with human-approved baselines. Snapshot the valid call chains of an API so an agent can look one up instead of tracing for it. gRPC today, OpenAPI next

3.open-wxa / wxa-runner

TranslatedRun mini programs in the browser using WeChat's official base library, with support for Chrome DevTools debugging and Playwright E2E testing

• e2e-testing
• mini-program
• miniprogram
• playwright
• simulator
• taro
• +4 more

4.jo-duchan / tapflow

Self-hosted iOS & Android simulator streaming for the whole team

• appetize-alternative
• android
• ios
• react-native
• android-emulator
• app-testing
• +14 more

5.arjaythedev / twelve-dollar-server-challenge

Implement one small API on SQLite in any language; we benchmark it on a $12 server (1 vCPU, 2 GB)

6.lingquan11 / cpp-matmul-performance

TranslatedC++ matrix multiplication performance experiments: from triple loops to blocking optimization and systolic arrays — an undergraduate introductory showcase project in the AI chip (NPU) direction

7.web-infra-dev / midscene

See interfaces like a human. E2E testing in natural language.

• testing
• browser-use
• computer-use
• gpt-operator
• javascript
• phone-use
• +2 more

8.axllent / mailpit

An email and SMTP testing tool with API for developers

• email-testing
• go
• golang
• smtp-server
• smtp-relay
• smtp-testing
• +2 more

9.ffuf / ffuf

Fast web fuzzer written in Go

• fuzzer
• pentesting
• infosec
• web

10.vitest-dev / vitest

Next generation testing framework powered by Vite.

• vite
• test
• testing-tools

11.seleniumbase / SeleniumBase

Browser automation and testing without limits. SeleniumBase's CDP Mode bypasses bot-detection with ease. Check out the examples!

• python
• selenium-python
• e2e-testing
• seleniumbase
• web-automation
• pytest
• +10 more

12.schemathesis / schemathesis

Catch API bugs before your users do

• hypothesis
• pytest
• swagger
• cli
• property-based-testing
• graphql
• +6 more

13.meta / idb

idb is a flexible command line interface for automating iOS simulators and devices

14.locustio / locust

Write scalable load tests in plain Python 🚗💨

• locust
• python
• load-testing
• performance-testing
• http
• benchmarking
• +5 more

15.mswjs / msw

The industry standard for API mocking in JavaScript.

• msw
• mock
• mocking-framework
• service-worker
• mock-service-worker
• mocking
• +5 more

16.Shopify / toxiproxy

:alarm_clock: :fire: A TCP proxy to simulate network and system conditions for chaos and resiliency testing

• resiliency
• tcp-proxy
• go
• proxy
• chaos
• testing
• +3 more

17.hatoo / oha

TranslatedOhayou (おはよう, "good morning"), HTTP load generator, inspired by rakyll/hey with tui animation.

• rust
• load-testing
• benchmark
• http
• load-generator
• command-line
• +3 more

18.ThrowTheSwitch / Unity

Simple unit testing for C

• c
• unit-testing

19.joke2k / faker

Faker is a Python package that generates fake data for you.

• python
• fake
• testing
• dataset
• fake-data
• test-data
• +3 more

20.pytest-dev / pytest

The pytest framework makes it easy to write small tests, yet scales to support complex functional testing

• unit-testing
• test
• testing
• python
• hacktoberfest

21.tsenart / vegeta

HTTP load testing tool and library. It's over 9000!

• load-testing
• go
• benchmarking
• http

22.stretchr / testify

A toolkit with common assertions and mocks that plays nicely with the standard library

• testify
• go
• assertions
• mocking
• golang
• testing
• +1 more

23.techinz / browsers-benchmark

Browser automation engine benchmark - Test bypass rates, performance & stealth against Cloudflare, DataDome, reCAPTCHA, Kasada, Imperva, Akamai, PerimeterX and other bot detection systems. Find the best browser for scraping.

• anti-detect
• antidetect-browser
• automation
• browser
• captcha
• patchright
• +4 more

24.bats-core / bats-core

Bash Automated Testing System

• shell
• bash
• testing
• bats
• tap
• testing-tools
• +2 more

25.sqlancer / sqlancer

Automated testing to find logic and performance bugs in database systems

• testing
• sql
• dbms
• fuzzing
• dbms-testing
• sqlite
• +5 more

26.vitalets / playwright-bdd

BDD testing with Playwright runner

• automated-testing
• bdd
• cucumber
• gherkin
• playwright
• testing

27.nicorobinreal / llmspeed

Feel how fast a local LLM runs before you buy the hardware

• llm
• benchmark
• gpu
• hardware
• inference
• llm-inference
• +3 more

28.pestphp / pest

The elegant testing framework for PHP developers and AI agents.

• php
• testing
• pest
• framework

29.webdriverio / webdriverio

Next-gen browser and mobile automation test framework for Node.js

• javascript
• webdriverio
• webdriver
• node
• test
• automation
• +6 more

30.Blazity / next-enterprise

💼 An enterprise-grade Next.js boilerplate for high-performance, maintainable apps. Packed with features like Tailwind CSS, TypeScript, ESLint, Prettier, testing tools, and more to accelerate your development.

• boilerplate
• chatgpt
• cva
• eslint
• jamstack
• javascript-ai
• +14 more

31.garris / BackstopJS

Catch CSS curve balls.

• javascript
• screen-capture
• chrome-headless
• backstopjs
• visual-regression-tests

32.brianvoe / gofakeit

Random fake data generator written in go

• go
• data
• generator
• random
• fake
• golang
• +1 more

33.godot-gdunit-labs / gdUnit4

Embedded unit testing framework for Godot 4 supporting GDScript and C#. Features test-driven development, embedded test inspector, extensive assertions, mocking, scene testing.

• test-automation
• testing
• testing-tools
• unit-test
• unittest
• unittest-framework
• +6 more

34.mailhog / MailHog

Web and API based SMTP testing

35.wix / Detox

Gray box end-to-end testing and automation framework for mobile apps

• e2e-tests
• ios
• react-native
• android
• testing
• javascript
• +5 more

36.mockoon / mockoon

Mockoon is the easiest and quickest way to run mock APIs locally. No remote deployment, no account required, open source.

• mock
• server
• rest-api
• rest
• application
• electron
• +12 more

37.ai / size-limit

Calculate the real cost to run your JS app or lib to keep good performance. Show error in pull request if the cost exceeds the limit.

38.codesenberg / bombardier

Fast cross-platform HTTP benchmarking tool written in Go

• fast
• http
• cli
• benchmarking
• bombardier
• go
• +6 more

39.karatelabs / karate

Test Automation Made Simple

• test-automation
• assertions
• testing-tools
• mock-server
• automated-testing
• webdriver
• +10 more

40.pointfreeco / swift-snapshot-testing

📸 Delightful Swift snapshot testing.

• swift
• testing
• snapshot-testing
• screenshot-testing

41.microsoft / restler-fuzzer

RESTler is the first stateful REST API fuzzing tool for automatically testing cloud services through their REST APIs and finding security and reliability bugs in these services.

42.bUnit-dev / bUnit

bUnit is a testing library for Blazor components that make tests look, feel, and runs like regular unit tests. bUnit makes it easy to render and control a component under test’s life-cycle, pass parameter and inject services into it, trigger event handlers, and verify the rendered markup from the component using a built-in semantic HTML comparer.

• razor-components
• unit-testing
• blazor
• blazor-components
• xunit
• nunit
• +8 more

43.mccutchen / go-httpbin

A reasonably complete and well-tested golang port of httpbin, with zero dependencies outside the go stdlib.

• httpbin
• golang
• testing
• http

44.assetnote / h3fuzz

Content discovery and fuzzing with HTTP/3 support (100k requests per second)

45.cypress-io / cypress

Fast, easy and reliable testing for anything that runs in a browser.

• cypress
• end-to-end-testing
• angular-testing-library
• component-testing
• cypress-cloud
• cypress-schematic
• +7 more

46.avajs / ava

Node.js test runner that lets you develop with confidence 🚀

• test-runner
• ava
• javascript
• concurrency
• async-functions
• tap
• +12 more

47.dotnet / BenchmarkDotNet

Powerful .NET library for benchmarking

• benchmark
• benchmarking
• c-sharp
• dotnet
• performance
• csharp
• +1 more

48.codeceptjs / CodeceptJS

Supercharged End 2 End Testing Framework for NodeJS

• codeceptjs
• webdriverio
• selenium-webdriver
• acceptance-testing
• end-to-end-testing
• nodejs
• +11 more

49.coverlet-coverage / coverlet

Cross platform code coverage for .NET

• code-coverage
• dotnet-core
• unittest
• coverage
• cross-platform
• coverage-library
• +4 more

50.cucumber / cucumber-jvm

Cucumber for the JVM

• cucumber-jvm
• java
• polyglot-release
• tidelift

51.cucumber / godog

Cucumber for golang

• golang
• gherkin
• integration-testing
• functional-testing

52.paratestphp / paratest

:computer: Parallel testing for PHPUnit

53.Redocly / redocly-cli

⚒️ Redocly CLI makes OpenAPI easy. Lint/validate to any standard, generate beautiful docs, and more.

• openapi-cli
• openapi
• openapi3
• openapi31
• redoc
• redocly
• +7 more

54.litestar-org / polyfactory

Simple and powerful factories for mock data generation

• pydantic
• python
• dataclasses
• starlite
• hacktoberfest
• typeddict
• +6 more

55.reg-viz / reg-suit

:recycle: Visual Regression Testing tool

• visual-tests
• nodejs
• regression-testing
• automation-tests
• reg-suit

56.testing-library / react-testing-library

🐐 Simple and complete React DOM testing utilities that encourage good testing practices.

• reactjs
• testing
• javascript

57.forwardemail / supertest

🕷 Super-agent driven library for testing node.js HTTP servers using a fluent API. Maintained for @forwardemail, @ladjs, @spamscanner, @breejs, @cabinjs, and @lassjs.

• supertest
• superagent
• assertions
• node

58.react-cosmos / react-cosmos

Sandbox for developing and testing UI components in isolation

• react
• devtools
• ui
• components
• testing
• sandbox

59.hagopj13 / node-express-boilerplate

A boilerplate for building production-ready RESTful APIs using Node.js, Express, and Mongoose

• nodejs
• express
• mongoose
• mongodb
• boilerplate
• starter
• +6 more

60.devlooped / moq

The most popular and friendly mocking framework for .NET

61.rspec / rspec-rails

RSpec for Rails 7+

62.cucumber / cucumber-ruby

Cucumber for Ruby. It's amazing!

• cucumber
• ruby
• polyglot-release
• tidelift

63.power-assert-js / power-assert

Power Assert in JavaScript. Provides descriptive assertion messages through standard assert interface. No API is the best API.

• power-assert
• assert

64.testcontainers / testcontainers-node

Testcontainers is a NodeJS library that supports tests, providing lightweight, throwaway instances of common databases, Selenium web browsers, or anything else that can run in a Docker container.

• node
• docker
• testcontainers
• testing

65.matryer / moq

Interface mocking tool for go generate

• golang
• mocking
• testing
• codegen

66.beam-community / ex_machina

Create test data for Elixir applications

• elixir
• testing
• factory-definitions
• factories

67.martinus / nanobench

Simple, fast, accurate single-header microbenchmarking functionality for C++11/14/17/20

• benchmark
• cpp
• microbenchmark
• single-header
• single-header-lib
• single-file
• +2 more

68.TrilonIO / aspnetcore-angular-universal

ASP.NET Core & Angular Universal advanced starter - PWA w/ server-side rendering for SEO, Bootstrap, i18n internationalization, TypeScript, unit testing, WebAPI REST setup, SignalR, Swagger docs, and more! By @TrilonIO

• angular
• universal
• ngrx
• hmr
• aspnetcore
• aspnet
• +7 more

69.online-judge-tools / oj

Tools for various online judges. Downloading sample cases, generating additional test cases, testing your code, and submitting it.

• competitive-programming
• automation
• scraping
• atcoder
• codeforces
• programming-contests
• +1 more

70.maxbrunsfeld / counterfeiter

A tool for generating self-contained, type-safe test doubles in go

71.zenstruck / foundry

A model factory library for creating expressive, auto-completable, on-demand dev/test fixtures with Symfony and Doctrine.

• doctrine
• symfony
• test
• fixtures
• factory
• faker

72.tarampampam / webhook-tester

🔭 Powerful tool for testing WebHooks and more

• webhook
• tests
• golang
• push-notifications
• tester
• websocket
• +4 more

73.ai-dashboad / flutter-skill

AI-powered E2E testing for 10 platforms. 253 MCP tools. Zero config. Works with Claude, Cursor, Windsurf, Copilot. Test Flutter, React Native, iOS, Android, Web, Electron, Tauri, KMP, .NET MAUI — all from natural language.

• ai
• android
• automation
• claude
• cursor
• e2e-testing
• +14 more

74.cenfun / monocart-reporter

A playwright test reporter (Node.js)

• playwright
• html
• comments
• email
• grid
• slack
• +14 more

75.playwright-php / playwright

Playwright PHP library for browser automation: navigation, E2E tests, assertions, screenshots, and so much more!

• browser
• browser-automation
• php
• php-browser
• phpunit
• playwright
• +7 more

76.omar2535 / GraphQLer

🔍A cutting edge context aware GraphQL API fuzzing tool!

• api-testing-framework
• graphql
• api
• automated-testing
• cybersecurity
• pentesting
• +3 more

77.jestjs / jest

Delightful JavaScript Testing.

• javascript
• testing
• painless-javascript-testing
• facebook
• immersive
• painless
• +3 more

78.karma-runner / karma

Spectacular Test Runner for JavaScript

79.faker-ruby / faker

A library for generating fake data such as names, addresses, and phone numbers.

• fake
• ruby

80.teamcapybara / capybara

Acceptance test framework for web applications

• hacktoberfest

81.thoughtbot / factory_bot

A library for setting up Ruby objects as test data.

• factory-girl
• ruby
• thoughtbot
• rubygems
• testing
• fixtures
• +3 more

82.doctest / doctest

The fastest feature-rich C++11/14/17/20/23 single-header testing framework

• c-plus-plus
• doctest
• tdd
• testing
• unit-testing
• header-only
• +8 more

83.ardatan / graphql-tools

:wrench: Utility library for GraphQL to build, stitch and mock GraphQL schemas in the SDL-first approach

• graphql-schema
• schema-language
• graphql
• graphql-api
• javascript
• mock
• +3 more

84.AliSoftware / OHHTTPStubs

Stub your network requests easily! Test your apps with fake network data and custom response time, response code and headers!

• ios
• stubbing
• network
• swift
• objective-c
• stub
• +4 more

85.testcontainers / testcontainers-go

Testcontainers for Go is a Go package that makes it simple to create and clean up container-based dependencies for automated integration/smoke tests. The clean, easy-to-use API enables developers to programmatically define containers that should be run as part of a test and clean up those resources when the test is done.

• testing
• docker
• automation
• golang
• go
• testcontainers-go
• +2 more

86.simplecov-ruby / simplecov

Code coverage for Ruby with a powerful configuration library and automatic merging of coverage across test suites

• ruby
• test-coverage
• code-quality
• rails
• coverage
• coverage-report
• +1 more

87.lk-geimfari / mimesis

Mimesis is a Python library for generating fake but realistic data in multiple languages and locales.

• mimesis
• fake
• data
• generator
• fixtures
• dummy
• +14 more

88.alibaba / macaca

TranslatedAutomation solution for multi-platform.

• automation
• testing
• uitest
• android
• ios
• hybrid-apps
• +1 more

89.APIs-guru / graphql-faker

🎲 Mock or extend your GraphQL API with faked data. No coding required.

• graphql
• idl
• faked-data
• mock
• faker
• api

90.splitrb / split

:chart_with_upwards_trend: The Rack Based A/B testing framework

• split
• redis
• ab-testing
• ruby
• rails
• rack

91.nalexn / ViewInspector

Runtime introspection and unit testing of SwiftUI views

• swiftui
• swiftui-views
• unit-testing
• runtime-typechecking
• best-practices
• swift
• +1 more

92.jarcoal / httpmock

HTTP mocking for Golang

93.marmelab / json-graphql-server

Get a full fake GraphQL API with zero coding in less than 30 seconds.

• graphql
• graphql-server
• express-graphql

94.oblador / loki

👁 Visual Regression Testing for Storybook

• react
• react-native
• testing
• storybook
• visual-testing
• visual-regression
• +4 more

95.watir / watir

Watir Powered By Selenium

• ruby
• selenium
• watir

96.phpstan / phpdoc-parser

Next-gen phpDoc parser with support for intersection types and generics

• phpstan
• static-analysis
• php
• php7
• testing
• static-code-analysis
• +2 more

97.scientistproject / Scientist.net

A .NET library for carefully refactoring critical paths. It's a port of GitHub's Ruby Scientist library

98.testdouble / suture

🏥 A Ruby gem that helps you refactor your legacy code

99.shellspec / shellspec

A full-featured BDD unit testing framework for bash, ksh, zsh, dash and all POSIX shells

• dash
• bash
• ksh
• zsh
• shell
• shell-script
• +11 more

100.HashNuke / hound

Elixir library for writing integration tests and browser automation