Open Source Feature Flags, Experimentation, and Product Analytics

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• Updated Nov 12, 2026
• TypeScript

Achieving confident refactoring through experimentation with Python 2.7 & 3.3+

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• Updated Dec 22, 2025
• Python

FeatureHub - cloud native feature flags, A/B testing and remote configuration service. Real-time streaming feature updates. Provided with Java, JavaScript, React, Python, Go, .Net, Ruby, Android, Swift and Flutter SDKs.

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• Updated Nov 12, 2026
• Dart

Ambrosia is a Python library for A/B tests design, split and result measurement

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• Updated Jun 11, 2026
• Python

SwitchFeat is an open source and self-hosted feature flags and A/B testing framework written in Nodejs, Typescript and React.

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• Updated Mar 7, 2024
• TypeScript

Simple A/B testing library for Clojure

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• Updated Mar 19, 2024
• Clojure

Split Testing for Vue.js

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• Updated Jan 6, 2023
• JavaScript

🧪 Source-controlled split testing stack for building, launching and analysing A/B tests.

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• Updated Sep 30, 2019

Orbitra.link — High-performance, self-hosted traffic tracker for media buyers and SEO. Lightweight, secure, and optimized for Linux. Features advanced GEO-targeting, real-time analytics, and a premium UI with customizable themes. Take full control of your data.

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• Updated Nov 12, 2026
• JavaScript

Main ABRouter product repository that contains docker-compose file and orchestrates the project containers.

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• Updated May 18, 2023
• PHP

Minimal A/B Testing Library in PHP

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• Updated Jul 26, 2020
• PHP

Terraform Split provider

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• Updated Dec 1, 2025
• Go

🧪 Source-controlled JS split testing framework for building and launching A/B tests.

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• Updated Jan 29, 2026
• JavaScript

Apache Spark based framework for analysis A/B experiments

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• Updated Nov 3, 2024
• Java

Easy split testing for Django.

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• Updated Aug 13, 2014
• Python

A/B testing with Contao Open Source CMS

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• Updated Nov 19, 2020
• PHP

Chat prompt template evaluation and inference monitoring

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• Updated Sep 24, 2025
• Python

👩‍🔬React components to assist with experiments, split-testing and analytics

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• Updated Sep 24, 2020
• JavaScript

AI has opinions. Humans have proof. An agent skill that split tests every material website change on real visitors instead of shipping guesses.

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• Updated Oct 26, 2026

Develop and run web experiments locally!

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• Updated Jun 23, 2026
• JavaScript