Open-source A/B testing framework

In plain words

Open-source A/B testing framework is a development tool launched in 2021 that helps engineers run experiments on their applications. It provides the infrastructure needed to set up, manage, and analyze A/B tests without relying on external services. The framework is designed for developers who want to control their testing infrastructure and integrate experimentation directly into their codebase. Being open-source, it allows teams to customize and self-host the solution.

written from the facts on this page · September 2026

• 
  Open-source A/B testing platform2021 · github.com · ▲11

  Open Source Feature Flags, Experimentation, and Product Analytics - growthbook/growthbook

• 
  GrowthBook2022 · growthbook.io · ▲283

  The open-source LaunchDarkly alternative

• 
  GrowthHackers Projects2016 · projects.growthhackers.com · ▲474

  Growth collaboration software for teams 📈

• 
  Open-source BI and analytics for engineers2024 · github.com · ▲293

  We are building Quary (https://quary.dev), an engineer-first BI/analytics product. You can find our repo at https://github.com/quarylabs/quary and our website at https://www.quary.dev/. There’s a demo video here: https://www.youtube.com/watch?v=o3hO65_lkGU As engineers who have worked on data at startups and Amazon, we were frustrated by self-serve BI tools. They seemed dumbed down and they always required us to abandon our local dev tools we know and love (e.g. copilot, git). For us and for everyone we speak to, they end up…

• 
  Coframe2023 · coframe.com · ▲367

  Let your website optimize itself with generative A/B testing

• 
  UpGrade2020 · ▲64

  An open-source platform for A/B testing in education.

• 
  /dev/null▲481

  a social network for devs

  Dev tools · 2d ago · dev-null.sh

• 
  Whiteboard (YC W26) – an open-source IDE for thoughtful software design▲423

  open-source IDE for thoughtful software design. Contribute to devdotfast/whiteboard development by creating an account on GitHub.

  Dev tools · 27d ago · github.com

• 
  Reladraw – A diagram language where you decide where to place things▲411

  Contribute to reladraw/reladraw development by creating an account on GitHub.

  Dev tools · 25d ago · github.com

• 
  OpenBot▲362

  Grok Bot alternative: free, local, open-source, multiplayer

  Dev tools · 22d ago · openbot.run

• 
  Talanoa▲341

  Hi HN, I’m a fullstack developer, and honestly, I’ve lost count of how many side projects I’ve worked on over the years. But one idea kept coming back to me: a different kind of email client. It first came to me in 2014: “What if we could handle emails more like conversations?” Every year, I’d revisit this concept in my “Build Notes.” Ten years later, no one had built exactly what I had in mind — so I finally decided to do it myself. That’s how Talanoa was born. I wanted something focused on people, not timelines. I was tired of marking messages as unread just to remember to reply later, or…

  Dev tools · 20d ago · talanoa.email

• 
  CoreSpeed▲332

  One MCP for everything your agents need: apps, memory, tools

  Dev tools · 27d ago · corespeed.io

• II
  Imba – I have spent 7 years creating a programming language for the web▲1,216

  Hey all My name is Sindre, and I am the CTO of Scrimba (YC S20). For the last 7 years, I have written all my web apps in a full-stack programming language called Imba. It compiles to JavaScript and its main goal is to make web developers more productive. I just launched a major overhaul of Imba, so I wanted to share it here on HN, in case anyone are interested in learning more about it. It is very opinionated, so some of you might not like it, but I would love to hear anyones feedback regardless. Constructive criticism appreciated! The backstory: Imba initially started in 2012 as an effort…

  Life & fun · 2021

• WB
  We built an end-to-end encrypted alternative to Google Photos▲1,180

  Hello HN, Over the last year we've been building ente[1], a privacy-friendly, easy-to-use alternative to Google Photos. We've so far built Android[2][3], iOS[4], web[5] apps that encrypt your files and back them up in the background. You can access these across your devices, and share them with other ente users, end-to-end encrypted. You can also use our electron app[6] to maintain a local copy of your backed up files. We've built a fault-tolerant data replication layer that replicates your data to two different storage providers in the EU. We will be providing additional replicas as an…

  Life & fun · 2021

• 
  SigmaOS▲1,026

  The browser that makes YOU fast

  Work · 2021 · sigmaos.com

• 
  Codex by OpenAI▲954

  OpenAI's smartest and most intuitive to use model yet

  AI · 2021 · openai.com

• 
  Bootstrappers▲788

  Publication dedicated to bootstrapping founders

  Growth · 2021 · bootstrappers.com

• 
  Poet.so▲767

  Capture and share Twitter posts as beautiful images

  Growth · 2021 · poet.so