Working code for Operational Transformation/CRDT hybrid

In plain words

This is a developer tool that implements a hybrid approach combining Operational Transformation and CRDT (Conflict-free Replicated Data Type) technologies. It was launched in 2017 and provides working code for teams building collaborative editing systems or distributed applications that need to synchronize changes across multiple users or devices. The tool is designed for developers who need reference implementations for managing concurrent edits without conflicts.

written from the facts on this page · September 2026

• 
  Domain-tailored CRDTs for collaboration without server involvement2018 · archagon.net · ▲158
• OT
  Operational transform for realtime collaborative editing in JS/Flow2016 · cricklet.github.io · ▲56
• 
  Matrix-CRDT – real-time collaborative apps using Matrix as backend2022 · github.com · ▲320

  Hi HN! Matrix-CRDT connects the worlds of Yjs [1] (a proven, high performance CRDT) with that of Matrix.org [2]. It started as an experiment, asking myself; can we store "state updates of a datastore" in Matrix instead of chat messages? Now, I'm convinced it's actually a really powerful combination to develop real-time, collaborative software. I'm using it for a new project and so far didn't have to write a backend yet. Matrix takes care of a lot of stuff: Authentication, E2EE, federation, hosting, etc. - so I can focus on the client. I love the ideas of Local First [3] software. Personally,…

• CO
  Collaborate on your YC Application with CRDT-powered forms2024 · togetherform.com · ▲22

  Hi HN, Like many of you here, this is not my first time applying to YC. Each time, my co-founder and I would copy the YC application to google docs to collaborate on it, then we copy it back to submit. This got us thinking - why can't we just collaborate on the YC application in the YC application? At one point I went down the CRDT rabbit hole and realized collaborative forms would be a great use of CRDTs, so I decided to build this out to an MVP. If you're curious about CRDTs (Conflict-Free Replicated Data Types) and how they differ from OT (Operational transformation, which is what powers…

• 
  Patched (YC S24)2024 · patched.codes · ▲260

  Open-source workflow automation for development teams

• 
  Serverless collaborative notion-level note editor using CRDT in GO2024 · github.com · ▲98

  File manager + CRDT Note Editor. Contribute to notebox/nbfm development by creating an account on GitHub.

• 
  /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

• 
  Startup School▲1,010

  A free online program to teach you how to start a company

  Life & fun · 2017 · startupschool.org

• 
  Neuralink▲890

  Elon Musk's newest company, merging our brain with AI

  AI · 2017 · neuralink.com

• 
  Hardbound 3.0▲739

  Illustrated summaries of bestselling nonfiction books

  Life & fun · 2017 · apps.apple.com

• 
  Canny▲704

  The easiest way to collect & manage feedback

  Growth · 2017 · canny.io

• 
  Visual Biographies▲679

  Timelines of amazing lives for visual learners

  Work · 2017

• 
  Breaker▲676

  The social podcast app 🎧

  Life & fun · 2017 · player.fm