Ranked by Attention Score: stars gained over the last 30 complete days
1–100 of 131 by Attention Score · Oct 5, 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.
Mutation testing for JavaScript and friends
Cross-platform automation framework for all kinds of apps, built on top of the W3C WebDriver protocol
Open-source, end-to-end platform for evaluating, observing, and improving LLM and AI agent applications. Tracing · Evals · Simulations · Datasets · Gateway · Guardrails. Self-hostable. Apache 2.0.
Hurl, run and test HTTP requests with plain text.
Generic automation framework for acceptance testing and RPA
Synthetic Patient Population Simulator
syzkaller is an unsupervised coverage-guided kernel fuzzer
Apache JMeter open-source load testing tool for analyzing and measuring the performance of a variety of services
A library that allows you to easily mock out tests based on AWS infrastructure.
A Java architecture test library, to specify and assert architecture rules in plain Java
Build data pipelines with SQL and Python, ingest data from different sources, add quality checks, and build end-to-end flows.
Automate running Lighthouse for every commit, viewing the changes, and preventing regressions
Mutation testing for .NET core and .NET framework!
Database anonymization and test data management
Turn any OpenAPI2/3 and Postman Collection file into an API server with mocking, transformations and validations.
Modular, zero-dependency testing framework for Go. Featuring plugins, suites, parallel tests and much more!
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
🔐 A CLI tool to extract server certificates
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.
Security oriented software fuzzer. Supports evolutionary, feedback-driven fuzzing based on code coverage (SW and HW based)
GoMock is a mocking framework for the Go programming language.
A C# architecture test library to specify and assert architecture rules in C# for automated testing.
Rust language bindings for Microsoft Playwright
Software build automation tool for Python.
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
Java version of the Playwright testing and automation library
Record, Replay, and Stub HTTP Interactions.
Modern Load Testing as Code
Automatically generate Go test boilerplate from your source code.
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.
Hardware testing for the software world. Real or virtual, local or remote, human, automated or agentic.
A constant throughput, correct latency recording variant of wrk
Awaitility is a small Java DSL for synchronizing asynchronous operations
Automated Security Testing For REST API's
Conformance test suite for OpenShift
Java DSL for easy testing of REST services
QA Wolf from anywhere — your terminal, your CI, your AI agent.
🔪Swiss-army knife for Android testing and development 🔪 ⛺
A library that creates fully populated objects for your unit tests.
Scalable, stateless selenium, playwright, devtools, mpc hub for Kubernetes cluster
Pytest plugin to write end-to-end browser tests with Playwright.
High-performance, multi-protocol mock server. HTTP, WebSocket, gRPC, MQTT, SSE, GraphQL, SOAP in one binary.
Erlang build tool that makes it easy to compile and test Erlang applications and releases.
InQL is a robust, open-source Burp Suite extension for advanced GraphQL testing, offering intuitive vulnerability detection, customizable scans, and seamless Burp integration.
Demo app for learning observability with Grafana and performance testing with k6.
TranslatedYApi is a visual API management platform that can be deployed locally and connects front-end, back-end, and QA
Chaos testing, network emulation, and stress testing tool for containers
validate the structure of your container images
Backend and Frontend application for tracking differences via image comparison
Github Action to build and test ROS 2 packages using colcon
Test harness for voice agents. Import from Retell, VAPI, Bland, LiveKit. Run autonomous simulations. Evaluate with LLM judges.
The Spring Boot of Selenium — conventions and sensible defaults for Java test automation, without hiding WebDriver.
The Enterprise-ready testing and specification framework.
Automated driver management and other helper features for Selenium WebDriver in Java
Automation-friendly framework for Continuous Testing by
Java language binding for writing Appium Tests, conforms to W3C WebDriver Protocol
A coverage-guided REST API fuzzer developed on top of LibAFL
:tea: iOS UI Automation Test Framework
Papercut SMTP -- The Simple Desktop Email Server
The Declarative Data Generator
📘A library for isolated developing UI components and automatically taking snapshots of them.
The Swift (and Objective-C) testing framework.
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.
shUnit2 is a xUnit based unit test framework for Bourne based shell scripts.
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.
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.
Single dependency Kubernetes clusters for local testing, experimenting and development.
A smooth testing lib for F#. APIs made for humans! Strong testing methodologies for everyone!
Suricata, Snort and Zeek IDS rule and pcap testing system
AET - a system that detects visual changes on web sites and performs basic page health checks
Snapshot testing for Java, Kotlin, and the JVM
POMWright is a complementary test framework for Playwright written in TypeScript.
A code-first BDD testing framework for Kotlin & Java.
Generate custom HTTP responses, the simpler way to test your Web Services
Atlas: End-to-End 3D Scene Reconstruction from Posed Images