Ranked by Attention Score: stars gained over the last 90 complete days
1–100 of 158 by Attention Score · Aug 6, 2026 – Nov 3, 2026 (UTC)
Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.
Open-source platform for creating safe, isolated production sandboxes for API, integration, and E2E testing.
Painless E2E Automation for Mobile and Web
OSS-Fuzz - continuous fuzzing for open source software.
Cross-platform automation framework for all kinds of apps, built on top of the W3C WebDriver protocol
Mutation testing for JavaScript and friends
Hurl, run and test HTTP requests with plain text.
Generic automation framework for acceptance testing and RPA
Synthetic Patient Population Simulator
Build data pipelines with SQL and Python, ingest data from different sources, add quality checks, and build end-to-end flows.
A library that allows you to easily mock out tests based on AWS infrastructure.
Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services
Automate running Lighthouse for every commit, viewing the changes, and preventing regressions
A Java architecture test library, to specify and assert architecture rules in plain Java
syzkaller is an unsupervised coverage-guided kernel fuzzer
Chaos testing, network emulation, and stress testing tool for containers
Mutation testing for .NET core and .NET framework!
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
MockServer is an HTTP(S) mock server and proxy for testing that lets you mock APIs, inspect and modify live traffic, and inject failures. It supports HTTP/1.1, HTTP/2, gRPC, WebSockets, TCP and more on a single port, with additional support for HTTP/3, message brokers, and AI/LLM APIs.
The open source, cloud native tool for API Mocking and Testing. Microcks is a Cloud Native Computing Foundation incubating project 🚀
Quick and Easy server testing/validation
Database anonymization and test data management
Flutter-first UI testing framework. Ready for action!
Random testing library for C#
Terratest is a Go library that makes it easier to write automated tests for your infrastructure code.
A C# architecture test library to specify and assert architecture rules in C# for automated testing.
TranslatedYApi is a visual API management platform that can be deployed locally and connects front-end, back-end, and QA
GoMock is a mocking framework for the Go programming language.
Modular, zero-dependency testing framework for Go. Featuring plugins, suites, parallel tests and much more!
Java version of the Playwright testing and automation library
Security oriented software fuzzer. Supports evolutionary, feedback-driven fuzzing based on code coverage (SW and HW based)
Modern Load Testing as Code
Fortio load testing library, command line tool, advanced echo server and web UI in go (golang). Allows to specify a set query-per-second load and record latency histograms and other useful stats.
Lightweight service virtualization/ API simulation / API mocking tool for developers and testers
Rust language bindings for Microsoft Playwright
Automatically generate Go test boilerplate from your source code.
Conformance test suite for OpenShift
🔐 A CLI tool to extract server certificates
:tea: iOS UI Automation Test Framework
QA Wolf from anywhere — your terminal, your CI, your AI agent.
Hardware testing for the software world. Real or virtual, local or remote, human, automated or agentic.
Automated Security Testing For REST API's
Generating fake data for the JVM (Java, Kotlin, Groovy) has never been easier!
Automating captcha solving for Playwright. Supports Cloudflare Turnstile & Interstitial, and reCAPTCHA V2 & V3 with Click-based or API (2captcha) solving. Designed for easy integration with Playwright, Patchright, and Camoufox.
A constant throughput, correct latency recording variant of wrk
Papercut SMTP -- The Simple Desktop Email Server
Realistic synthetic events for testing, demos, and pipelines — streamed live or generated in bulk
Java DSL for easy testing of REST services
InQL is a robust, open-source Burp Suite extension for advanced GraphQL testing, offering intuitive vulnerability detection, customizable scans, and seamless Burp integration.
Awaitility is a small Java DSL for synchronizing asynchronous operations
Backend and Frontend application for tracking differences via image comparison
🔪Swiss-army knife for Android testing and development 🔪 ⛺
Record, Replay, and Stub HTTP Interactions.
A library that creates fully populated objects for your unit tests.
Pytest plugin to write end-to-end browser tests with Playwright.
Erlang build tool that makes it easy to compile and test Erlang applications and releases.
Automation-friendly framework for Continuous Testing by
A coverage-guided REST API fuzzer developed on top of LibAFL
High-performance, multi-protocol mock server. HTTP, WebSocket, gRPC, MQTT, SSE, GraphQL, SOAP in one binary.
validate the structure of your container images
Automated driver management and other helper features for Selenium WebDriver in Java
Demo app for learning observability with Grafana and performance testing with k6.
Test harness for voice agents. Import from Retell, VAPI, Bland, LiveKit. Run autonomous simulations. Evaluate with LLM judges.
The Swift (and Objective-C) testing framework.
JVM version of Pact. Enables consumer driven contract testing, providing a mock service and DSL for the consumer project, and interaction playback and verification for the service provider project.
Single dependency Kubernetes clusters for local testing, experimenting and development.
Scalable, stateless selenium, playwright, devtools, mpc hub for Kubernetes cluster
shUnit2 is a xUnit based unit test framework for Bourne based shell scripts.
Github Action to build and test ROS 2 packages using colcon
✨ Jest matcher for image comparisons. Most commonly used for visual regression testing.
The Enterprise-ready testing and specification framework.
Atlas: End-to-End 3D Scene Reconstruction from Posed Images
Use docker/podman, compose local and remote via a FluentAPI
Java language binding for writing Appium Tests, conforms to W3C WebDriver Protocol
📘A library for isolated developing UI components and automatically taking snapshots of them.
A smooth testing lib for F#. APIs made for humans! Strong testing methodologies for everyone!
Easy NMOS setup an testing using Docker compose/available containers
cglib - Byte Code Generation Library is high level API to generate and transform Java byte code. It is used by AOP, testing, data access frameworks to generate dynamic proxy objects and intercept field access.
The Declarative Data Generator
zerocode-tdd is a community-developed, free, open-source, outcome-driven automated testing framework for Data Pipelines, ETL, REST API, Kafka(Data Streams), Databases and Load scenarios. all defined in simple JSON or YAML — with zero coding.
The Spring Boot of Selenium — conventions and sensible defaults for Java test automation, without hiding WebDriver.
Command line interface for testing internet bandwidth using speedtest.net
A Matcher Framework for Swift and Objective-C
Write JSON unit tests in less code. Great for testing REST interfaces.
Suricata, Snort and Zeek IDS rule and pcap testing system
A testing tool for Scala and Java developers