
GUN
RxDB
Liveblocks
Reflect.net
ShareDB
Automerge
FeathersJS
A CRDT framework with a powerful abstraction of shared data, Shared data types for building collaborative software

The modern platform for creating, sharing, and collaborating on AI prompts. Advanced version control and real-time testing.

Which is more popular?
Based on our record, Yjs seems to be more popular. It has been mentioned 27 times since March 2021.
Website, pricing, platforms and company facts side by side.
|
|
|
|
|---|---|---|
| Website | github.com | diffyn.com |
| Pricing | — | |
| Platforms | — | |
| Listed in |
What each product offers, as listed by its team.


Possible disadvantages
An editorial look at what each product does well and who it suits.


No analysis of Yjs yet.
Overall verdict
Why this product is good
Recommended for
Walkthroughs and reviews on video.
No Yjs videos yet. You could help us improve this page by suggesting one.
The Ultimate Prompt Tool for Creators – Visualize & Organize with Diffyn
How often each product is chosen within a category, 0–100% relative to the other.


As answered by people managing Yjs and Diffyn.
Diffyn's answer:
Addresses workflow and change management on LLM prompts, provide teams with traceability and visualization of tests across multiple models, provide deeper understading into efficiency of these prompts.
Diffyn's answer:
Diffyn is the platform that specializes on both change management and multi-model analysis.
Diffyn's answer:
React, Next.js, POSTGRESQL
Diffyn's answer:
Professionals incorporating LLMs or AI tools in their workflow and wants to keep track of changes and test their prompts.
Diffyn's answer:
I started working on Diffyn when I notice that prompting has become an essential part of work across many industries. While there are version control platofrms like github, they are not designed for just prompt management are can be overkill such applications, it is also not integrated natively with various LLMs and relevant tools for users to validate ideas and visualise results properly.
Share your experience with using Yjs and Diffyn. For example, how are they different and which one is better?
Recommendations tracked on public social media and blogs since March 2021.


For multiplayer editing I used Yjs, a CRDT (Conflict-free Replicated Data Type) library — no server-side conflict resolution, edits from multiple clients converge automatically, the same approach Google Docs and Figma use. - Source: dev.to / about 2 months ago
In the architecture of my Collaborative-Code-Editor, choosing CRDTs over OT gives me the advantage of not depending on a server for my data conflicts. Using Yjs as my CRDT library, not only fixes the problems OT arises but comes with... - Source: dev.to / 4 months ago
Highly suggest you take a look here: https://github.com/yjs/yjs CRDT can absolutely do what you’re asking. - Source: Hacker News / 5 months ago
Tracking Diffyn since Jun 2025.
When comparing Yjs and Diffyn, you can also consider the following products.


A fast, offline-first, reactive Database for JavaScript Applications
Compare RxDB to Yjs or Diffyn:


High-performance sync for multiplayer web apps. Up to 120 FPS sync, automatic persistence, server authority, fine-grained auth, and more...
Compare Reflect.net to Yjs or Diffyn:

Realtime database backend based on Operational Transformation (OT)
Compare ShareDB to Yjs or Diffyn:

A JSON-like data structure (a CRDT) that can be modified concurrently by different users, and merged again automatically.
Compare Automerge to Yjs or Diffyn: