Work · alternatives · 2026

24 alternatives to Domain-tailored CRDTs for collaboration without server involvement

Domain-tailored CRDTs for collaboration without server involvement is a technical resource about implementing collaborative data structures for local-first applications. It explores causal trees and operational CRDTs… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Domain-tailored CRDTs for collaboration without server involvement launched in 2018; newer entries below may have overtaken it.

1. 1
   Matrix-CRDT – real-time collaborative apps using Matrix as backend▲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,…

   2022 · github.com · its alternatives →

2. 2WC
   Working code for Operational Transformation/CRDT hybrid▲130

   2017 · medium.com · its alternatives →

3. 3
   Pg_CRDT – an experimental CRDT extension for Postgres▲296

   This is an experimental extension for CRDTs, pg_crdt: GitHub repo[0]. It supports Yjs/Yrs and Automerge. The linked blog post [1] describes how we're thinking about this extension in a Supabase context. I want to emphasise this part: "pg_crdt has not been released onto the Supabase platform (and it may never be). We’re considering many options for offline-sync/support and, while CRDTs will undoubtedly factor in, we’re not sure if this is the right approach." [0] GitHub repo: https://github.com/supabase/pg_crdt [1] Blog post:…

   2022 · supabase.com · its alternatives →

4. 4
   Serverless collaborative notion-level note editor using CRDT in GO▲98

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

   2024 · github.com · its alternatives →

5. 5SC
   SyncedStore CRDT – build multiplayer collaborative apps for React / Vue▲144

   SyncedStore is a library for building distributed, real-time collaborative web applications that sync automatically. This used to be quite complex, but with SyncedStore it's as easy as sharing a pie!

   2021 · syncedstore.org · its alternatives →

6. 6CO
   Collaborate on your YC Application with CRDT-powered forms▲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…

   2024 · togetherform.com · its alternatives →

7. 7
   Yboard is a multiplayer desktop-like workspace based on CRDT▲165

   I've always been curious about real-time multiplayer user interfaces. When I found out about CRDTs and Yjs[1] I thought they could serve as a solid base for a project like that. So I built this pretty simple desktop-like UI (heavily inspired by lifeat.io) and used Yjs to replicate the whole UI state among multiple peers, creating the experience of a unique interface. Try online: https://yboard.lol [1]: https://github.com/yjs/yjs

   2022 · github.com · its alternatives →

8. 8AL
   A local-first, real-time global canvas using CRDTs▲7

   This is a demo of a family of libraries intended to make it easy to build local-first, real-time applications for mobile, desktop and the web using CRDTs. It currently has support for using Sqlite, PostgreSQL or a plain old record store (Hive) as data storage backend. https://github.com/cachapa/crdt There's also a websocket sync layer that transparently handles the connection and delta changesets between participants. https://github.com/cachapa/crdt_sync

   2023 · draw.cachapa.net · its alternatives →

9. 9
   Pg_CRDT – CRDTs in Postgres Using Automerge▲11

   CRDT support in Postgres (experimental). Contribute to supabase/pg_crdt development by creating an account on GitHub.

   2025 · github.com · its alternatives →

10. 10
    Collaborative Canvas▲3

    Real-time collaborative whiteboard with CRDT sync

    Jul 2026 · its alternatives →

11. 11
    Multi User Text Editor▲12

    A collaborative, Google Docs-like text editor

    2024 · multi-user-editor.netlify.app · its alternatives →

12. 12
    Realtime Multiplayer by Supabase▲273

    Easily build real-time apps that enables user collaboration

    2022 · multiplayer.dev · its alternatives →

13. 13OT
    Operational transform for realtime collaborative editing in JS/Flow▲56

    2016 · cricklet.github.io · its alternatives →

14. 14
    Rustpad, a self-hosted online collaborative text editor▲143

    Efficient and minimal collaborative code editor, self-hosted, no database required - ekzhang/rustpad

    2021 · github.com · its alternatives →

15. 15
    Fuzzynote – terminal-based, CRDT-backed, collaborative note-taking▲153

    Terminal-based, hyper-fast, CRDT-backed, collaborative note-taking tool - Sambigeara/fuzzynote

    2021 · github.com · its alternatives →

16. 16
    Crudlet.js – A common, streamable interface for synchronizing data▲94

    utility library for async iterable iterators. Contribute to crcn/mesh.js development by creating an account on GitHub.

    2015 · github.com · its alternatives →

17. 17TD
    TerminusHub, Distributed Revision Control for Structured Data▲81

    2020 · terminusdb.com · its alternatives →

18. 18
    A static kd-tree in JavaScript▲44

    A static kdtree data structure. Contribute to mikolalysenko/static-kdtree development by creating an account on GitHub.

    2014 · github.com · its alternatives →

19. 19
    MatrixDS▲79

    The data community's workbench

    2018 · its alternatives →

20. 20
    Remult – a CRUD framework for full-stack TypeScript▲130

    Full-stack CRUD, simplified, with SSOT TypeScript entities - remult/remult

    2022 · github.com · its alternatives →

21. 21
    Joint, a real-time Node.js framework for single page apps▲56

    A hand-rolled real-time Node.js framework for connecting single page apps - psugihara/joint

    2012 · github.com · its alternatives →

22. 22
    Hocuspocus 4 – self-hosted Yjs collaboration backend▲38

    Hi HN! I'm Philip, one of the founders of Tiptap. Next to our open-source rich text editor framework, we started developing Hocuspocus about five years ago and open-sourced it too, to solve one of our biggest challenges back then: real-time collaboration in web editors. We found Yjs by Kevin Jahns, a CRDT library that handles concurrent edits without conflicts. Basically, Yjs merges changes from users without conflicts and in real-time. Hocuspocus is the WebSocket server built on top of Yjs. It handles real-time sync, presence/awareness, persistence, and Redis-based scaling. While we…

    May 2026 · github.com · its alternatives →

23. 23
    CRDT research, with Swift code and real-time collaboration over iCloud▲8

    Contribute to archagon/crdt-playground development by creating an account on GitHub.

    2018 · github.com · its alternatives →

24. 24
    Boundary Free▲74

    Server and App Monitoring

    2014 · domaineasy.com · its alternatives →

Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →