Best Self-hosted Testing & Quality Assurance
A curated collection of the best self-hosted testing & QA tools help developers ensure that software behaves as expected across different scenarios, devices, and load conditions. These tools improve code reliability, prevent regressions, and validate product quality from unit to production.

Uptime Kuma
A user-friendly, open-source uptime monitoring solution for tracking website and service availability
Alternative to:

BetterStack
A user-friendly, open-source uptime monitoring solution for tracking website and service availability
Stars
70,397Forks
6,206Last commit
9 days ago

Ladybird
Ladybird is a new open-source web browser and engine built from scratch, focused on web standards, performance, and user privacy.
Alternative to:

Arc
Ladybird is a new open-source web browser and engine built from scratch, focused on web standards, performance, and user privacy.
Stars
43,528Forks
1,855Last commit
8 days ago
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Pythagora
A VS Code extension that uses AI to help developers plan, write, test, and deploy full-stack web applications with minimal coding required.
Alternative to:

Cursor
A VS Code extension that uses AI to help developers plan, write, test, and deploy full-stack web applications with minimal coding required.
Stars
32,766Forks
3,341Last commit
3 months ago

Bruno
A modern, user-friendly API client that simplifies API testing and development with a clean interface and powerful features.
Alternative to:

Postman
A modern, user-friendly API client that simplifies API testing and development with a clean interface and powerful features.
Stars
34,741Forks
1,661Last commit
8 days ago

Sentry
Sentry helps developers identify, debug and resolve issues in real-time across platforms and programming languages.
Alternative to:

DataDog
Sentry helps developers identify, debug and resolve issues in real-time across platforms and programming languages.
Stars
41,036Forks
4,361Last commit
8 days ago

HTTPie
Intuitive, user-friendly CLI tool for making HTTP requests, debugging APIs, and testing web services with ease and efficiency.
Alternative to:

Postman
Intuitive, user-friendly CLI tool for making HTTP requests, debugging APIs, and testing web services with ease and efficiency.
Stars
35,784Forks
3,727Last commit
6 months ago

Onlook
Onlook is an open-source desktop app that allows you to visually edit React applications and automatically write changes back to your code in real-time.
Alternative to:

Webflow
Onlook is an open-source desktop app that allows you to visually edit React applications and automatically write changes back to your code in real-time.
Stars
16,542Forks
991Last commit
8 days ago

Unleash
Unleash offers secure, open-source feature flags built for large enterprises, enabling controlled rollouts and risk reduction in software releases.
Alternative to:

Optimizely
Unleash offers secure, open-source feature flags built for large enterprises, enabling controlled rollouts and risk reduction in software releases.
Stars
12,208Forks
774Last commit
8 days ago

OpenReplay
Open-source tool for session replay, product analytics, and performance monitoring, offering full data control through self-hosting or cloud options.
Alternative to:

New Relic
Open-source tool for session replay, product analytics, and performance monitoring, offering full data control through self-hosting or cloud options.
Stars
10,144Forks
588Last commit
8 days ago

Gatus
A highly customizable monitoring solution that provides automated status pages, extensive alerting options, and detailed testing capabilities for your services and infrastructure
Alternative to:

BetterStack
A highly customizable monitoring solution that provides automated status pages, extensive alerting options, and detailed testing capabilities for your services and infrastructure
Stars
7,497Forks
516Last commit
13 days ago

GrowthBook
Powerful platform for feature flagging and A/B testing, enabling safe releases and data-driven product improvements
Alternative to:

Optimizely
Powerful platform for feature flagging and A/B testing, enabling safe releases and data-driven product improvements
Stars
6,612Forks
563Last commit
8 days ago

Mockoon
Create, run, and share mock REST APIs without coding. Boost productivity with an intuitive interface and powerful features.
Alternative to:

Postman
Create, run, and share mock REST APIs without coding. Boost productivity with an intuitive interface and powerful features.
Stars
7,181Forks
411Last commit
9 days ago

Flagsmith
Powerful feature management platform for seamless software releases, A/B testing, and personalized user experiences.
Alternative to:

Optimizely
Powerful feature management platform for seamless software releases, A/B testing, and personalized user experiences.
Stars
5,687Forks
440Last commit
8 days ago

Neosync
Neosync enables developers to anonymize sensitive data and generate synthetic data for testing and development
Neosync enables developers to anonymize sensitive data and generate synthetic data for testing and development
Stars
3,870Forks
155Last commit
9 days ago

Grit
Grit uses AI and static analysis to automatically fix technical debt, generating pull requests for code cleanup and framework migrations.
Grit uses AI and static analysis to automatically fix technical debt, generating pull requests for code cleanup and framework migrations.
Stars
3,862Forks
97Last commit
16 days ago

Flipt
A feature flag platform that integrates with Git workflows, enabling developers to manage features directly in their codebase.
Alternative to:

LaunchDarkly
A feature flag platform that integrates with Git workflows, enabling developers to manage features directly in their codebase.
Stars
4,392Forks
242Last commit
8 days ago

Requestly
A powerful browser extension and desktop app for developers to manipulate network requests, debug APIs, and improve web app testing
Alternative to:

Postman
A powerful browser extension and desktop app for developers to manipulate network requests, debug APIs, and improve web app testing
Stars
3,482Forks
296Last commit
8 days ago

Quant-UX
Quant-UX is an open-source tool for creating interactive prototypes, conducting user tests, and analyzing results to improve UX design.
Alternative to:

Figma
Quant-UX is an open-source tool for creating interactive prototypes, conducting user tests, and analyzing results to improve UX design.
Stars
2,199Forks
226Last commit
9 days ago

FeatBit
FeatBit is a fast, scalable feature flag service that enables risk mitigation and fosters business growth through controlled feature releases.
Alternative to:

Optimizely
FeatBit is a fast, scalable feature flag service that enables risk mitigation and fosters business growth through controlled feature releases.
Stars
1,538Forks
115Last commit
9 days ago

LostPixel
Automated visual testing tool that detects UI changes, ensures consistency, and accelerates development workflows.
Alternative to:

Applitools
Automated visual testing tool that detects UI changes, ensures consistency, and accelerates development workflows.
Stars
1,464Forks
54Last commit
15 days ago

Argos
Automate visual testing, catch UI bugs early, and collaborate effortlessly with your team to maintain pixel-perfect interfaces.
Alternative to:

Applitools
Automate visual testing, catch UI bugs early, and collaborate effortlessly with your team to maintain pixel-perfect interfaces.
Stars
468Forks
40Last commit
11 days ago

Capgo
Over-the-air update solution for Capacitor apps that enables instant deployment of bug fixes and features without going through app store review processes.
Alternative to:

Appflow
Over-the-air update solution for Capacitor apps that enables instant deployment of bug fixes and features without going through app store review processes.
Stars
138Forks
61Last commit
8 days ago

LaunchDarkly
LaunchDarkly enables teams to release, control and experiment with software features to deliver better user experiences.
LaunchDarkly enables teams to release, control and experiment with software features to deliver better user experiences.

Jest
Jest is a JavaScript testing framework designed to ensure correctness of any JavaScript codebase.
Jest is a JavaScript testing framework designed to ensure correctness of any JavaScript codebase.

Urlbox
Urlbox provides accurate, high-quality website screenshots for compliance, research, and marketing. Trusted by 650+ customers for reliable image generation.
Urlbox provides accurate, high-quality website screenshots for compliance, research, and marketing. Trusted by 650+ customers for reliable image generation.

Azure Pipelines
Cloud-hosted CI/CD pipelines for Linux, macOS, and Windows. Get 10 free parallel jobs and automate builds with easy deployment to any cloud platform.
Alternative to:

GitHub
Cloud-hosted CI/CD pipelines for Linux, macOS, and Windows. Get 10 free parallel jobs and automate builds with easy deployment to any cloud platform.

CodeBeaver
AI-powered tool that analyzes codebases, writes and runs unit tests, and delivers them via pull requests, supporting major Git platforms.
AI-powered tool that analyzes codebases, writes and runs unit tests, and delivers them via pull requests, supporting major Git platforms.

Apidog
Apidog streamlines the entire API lifecycle with tools for design, debugging, testing, documentation, and mocking, enabling faster and collaborative API development.
Apidog streamlines the entire API lifecycle with tools for design, debugging, testing, documentation, and mocking, enabling faster and collaborative API development.

ScreenshotOne
ScreenshotOne offers a powerful API to render high-quality website screenshots with customizable options, blocking capabilities, and easy integration.
ScreenshotOne offers a powerful API to render high-quality website screenshots with customizable options, blocking capabilities, and easy integration.

Airbrake
Catch and fix bugs before customers notice with Airbrake's error monitoring and performance tracking platform
Catch and fix bugs before customers notice with Airbrake's error monitoring and performance tracking platform

Azure DevOps
Complete DevOps solution with agile planning, CI/CD pipelines, testing tools, and secure code collaboration. Build, test, and deploy to any platform.
Alternative to:

GitHub
Complete DevOps solution with agile planning, CI/CD pipelines, testing tools, and secure code collaboration. Build, test, and deploy to any platform.

Rust
Rust is a multi-paradigm, general-purpose programming language designed for performance and safety, especially safe concurrency.
Alternative to:

GitHub
Rust is a multi-paradigm, general-purpose programming language designed for performance and safety, especially safe concurrency.

Abby
Abby offers open-source, fully typed feature flagging and remote configuration for React and Next.js, with multi-environment testing and debugging tools.
Alternative to:

Optimizely
Abby offers open-source, fully typed feature flagging and remote configuration for React and Next.js, with multi-environment testing and debugging tools.
Stars
153Forks
21Last commit
3 months ago

Rely
An Internal Developer Portal that enables engineering organizations to track service quality, health, and maturity in one place, improving productivity and standards.
An Internal Developer Portal that enables engineering organizations to track service quality, health, and maturity in one place, improving productivity and standards.

BetterStack
Better Stack offers a unified platform for website monitoring, incident management, log analysis, and infrastructure monitoring to improve software quality and reliability.
Better Stack offers a unified platform for website monitoring, incident management, log analysis, and infrastructure monitoring to improve software quality and reliability.