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.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

4.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)

5.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

6.axllent / mailpit

An email and SMTP testing tool with API for developers

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

7.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

8.ffuf / ffuf

Fast web fuzzer written in Go

• fuzzer
• pentesting
• infosec
• web

9.vitest-dev / vitest

Next generation testing framework powered by Vite.

• vite
• test
• testing-tools

10.nicorobinreal / llmspeed

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

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

11.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

12.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

13.schemathesis / schemathesis

Catch API bugs before your users do

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

14.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

15.locustio / locust

Write scalable load tests in plain Python 🚗💨

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

16.mswjs / msw

The industry standard for API mocking in JavaScript.

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

17.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.

18.joke2k / faker

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

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

19.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

20.meta / idb

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

21.jestjs / jest

Delightful JavaScript Testing.

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

22.typicode / json-server

Get a full fake REST API with zero coding in less than 30 seconds (seriously)

• api
• fake
• frontend
• json
• mock
• rest
• +1 more

23.ThrowTheSwitch / Unity

Simple unit testing for C

• c
• unit-testing

24.stretchr / testify

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

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

25.bats-core / bats-core

Bash Automated Testing System

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

26.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

27.tsenart / vegeta

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

• load-testing
• go
• benchmarking
• http

28.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

29.mailhog / MailHog

Web and API based SMTP testing

30.webdriverio / webdriverio

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

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

31.tox-dev / tox

Command line driven CI frontend and development task automation tool.

• testing
• python
• virtualenv
• continuous-integration
• cli
• automation
• +2 more

32.pestphp / pest

The elegant testing framework for PHP developers and AI agents.

• php
• testing
• pest
• framework

33.ixartz / Next-js-Boilerplate

🚀🎉📚 Nextjs Boilerplate and Starter with App Router and Page Router support, Tailwind CSS 4 and TypeScript ⚡️ Made with developer experience first: Next.js 16 + TypeScript + ESLint + Prettier + Drizzle ORM + Husky + Lint-Staged + Vitest + Testing Library + Playwright + Storybook + Commitlint + VSCode + Sentry + PostCSS + Tailwind CSS ✨

• nextjs
• next-theme
• next-js
• starter-kit
• starter-template
• starter-project
• +14 more

34.karatelabs / karate

Test Automation Made Simple

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

35.mochajs / mocha

☕️ Classic, reliable, trusted test framework for Node.js and the browser

• mocha
• javascript
• testing
• tdd
• bdd
• browser
• +6 more

36.pointfreeco / swift-snapshot-testing

📸 Delightful Swift snapshot testing.

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

37.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

38.vitalets / playwright-bdd

BDD testing with Playwright runner

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

39.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

40.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

41.brianvoe / gofakeit

Random fake data generator written in go

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

42.wix / Detox

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

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

43.dotnet / BenchmarkDotNet

Powerful .NET library for benchmarking

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

44.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

45.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

46.testcontainers / testcontainers-java

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

• java
• docker
• docker-compose
• junit
• test-automation
• jvm
• +3 more

47.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

48.sqlancer / sqlancer

Automated testing to find logic and performance bugs in database systems

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

49.testing-library / react-testing-library

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

• reactjs
• testing
• javascript

50.faker-ruby / faker

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

• fake
• ruby

51.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

52.cucumber / godog

Cucumber for golang

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

53.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

54.minimaxir / big-list-of-naughty-strings

The Big List of Naughty Strings is a list of strings which have a high probability of causing issues when used as user-input data.

55.codesenberg / bombardier

Fast cross-platform HTTP benchmarking tool written in Go

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

56.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

57.garris / BackstopJS

Catch CSS curve balls.

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

58.testcontainers / testcontainers-dotnet

A library to support tests with throwaway instances of Docker containers for all compatible .NET Standard versions.

• automation
• dotnet
• docker
• testcontainers
• hacktoberfest
• testcontainers-dotnet
• +1 more

59.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.

60.python / pyperformance

Python Performance Benchmark Suite

• python
• performance
• benchmark

61.avajs / ava

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

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

62.nock / nock

HTTP server mocking and expectations library for Node.js

• http
• mock
• nock
• node
• javascript

63.devlooped / moq

The most popular and friendly mocking framework for .NET

64.microsoft / testfx

This repository holds the source code of Microsoft.Testing.Platform (MTP), a lightweight alternative to VSTest, as well as MSTest adapter and framework.

• dotnet
• microsoft
• mstest
• test
• test-framework
• tdd
• +10 more

65.tarampampam / webhook-tester

🔭 Powerful tool for testing WebHooks and more

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

66.onsi / ginkgo

A Modern Testing Framework for Go

• golang
• testing
• test
• test-driven-development
• bdd
• bdd-framework
• +1 more

67.oguimbal / pg-mem

An in memory postgres DB instance for your unit tests

• hacktoberfest
• pg-promise
• typeorm
• node-postgres
• pg-mem
• postgresql
• +9 more

68.mccutchen / go-httpbin

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

• httpbin
• golang
• testing
• http

69.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

70.codeceptjs / CodeceptJS

Supercharged End 2 End Testing Framework for NodeJS

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

71.paratestphp / paratest

:computer: Parallel testing for PHPUnit

72.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

73.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

74.react-cosmos / react-cosmos

Sandbox for developing and testing UI components in isolation

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

75.nunit / nunit

NUnit Framework

• nunit-framework
• tdd
• testing
• test-framework
• test-driven-development
• dotnet
• +3 more

76.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

77.litestar-org / polyfactory

Simple and powerful factories for mock data generation

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

78.reg-viz / reg-suit

:recycle: Visual Regression Testing tool

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

79.reg-viz / reg-cli

📷 Visual regression test tool.

• visual-recognition
• reg-suit
• visual-regression-testing
• visual-tests

80.mockito / mockito

Most popular Mocking framework for unit tests written in Java

• mockito
• java
• mocking-framework
• testing-tools
• mocking
• mock
• +6 more

81.VerifyTests / Verify

Verify is a snapshot testing tool that simplifies the assertion of complex data models and documents.

• snapshot-testing
• testing
• assertion-library
• snapshot

82.coverlet-coverage / coverlet

Cross platform code coverage for .NET

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

83.cucumber / cucumber-jvm

Cucumber for the JVM

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

84.lunarmodules / busted

Elegant Lua unit testing.

• lua
• testing

85.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

86.nightwatchjs / nightwatch

Integrated end-to-end testing framework written in Node.js and using W3C Webdriver API. Developed at @browserstack

• nightwatch
• javascript
• nodejs
• selenium
• webdriver
• end-to-end-testing
• +8 more

87.sj26 / mailcatcher

Catches mail and serves it through a dream.

• smtp
• mail
• server
• ruby
• rails
• rubygems
• +2 more

88.newsapps / beeswithmachineguns

A utility for arming (creating) many bees (micro EC2 instances) to attack (load test) targets (web applications).

89.bblimke / webmock

Library for stubbing and setting expectations on HTTP requests in Ruby.

90.nalexn / ViewInspector

Runtime introspection and unit testing of SwiftUI views

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

91.wemake-services / wemake-django-template

Bleeding edge django template focused on code quality and security.

• django
• docker
• caddy
• gitlab-ci
• pytest
• cookiecutter-template
• +4 more

92.gammasoft71 / xtd

Free open-source modern C++20/23 framework to create console (CLI), forms (GUI like WinForms) and unit test (xUnit) applications and libraries on Windows, macOS, Linux, iOS, Android, FreeBSD, Haiku, and SerenityOS.

• c-plus-plus
• gui-framework
• gui
• console
• unittest
• desktop
• +14 more

93.DemchaAV / GraphCompose

Declarative Java engine for structured documents. Automatic layout, pagination, reusable templates and themes. Render print-ready PDF, export editable PowerPoint, or generate semantic DOCX.

• document-generation
• java
• layout-engine
• pdf
• report-generation
• template-engine
• +14 more

94.kevin1024 / vcrpy

Automatically mock your HTTP interactions to simplify and speed up testing

• testing
• python
• http
• mocking

95.selenide / selenide

Concise UI Tests with Java!

96.bencheeorg / benchee

Easy and extensible benchmarking in Elixir providing you with lots of statistics!

• benchmarking
• elixir
• microbenchmarks
• extensible
• graphs
• statistics

97.testdouble / suture

🏥 A Ruby gem that helps you refactor your legacy code

98.nst / JSONTestSuite

A comprehensive test suite for RFC 8259 compliant JSON parsers

99.cenfun / monocart-reporter

A playwright test reporter (Node.js)

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

100.nnnkkk7 / snowflake-emulator

A lightweight Snowflake emulator built with Go and DuckDB for local development and testing

• cicd
• database
• docker
• duckdb
• emulator
• go
• +10 more