Best Yjs CRDT alternatives in 2026
8 direct alternatives to Yjs CRDT, compared on pricing, features, and best-for use cases. Pick the right replacement without the marketing fluff.
Curated by Louis Corneloup · Updated Cite this list: Toolradar, best Yjs CRDT alternatives 2026, toolradar.com/alternatives/yjs-crdt
Why people consider alternatives to Yjs CRDT
Yjs is a Conflict-free Replicated Data Type (CRDT) library designed to simplify the creation of collaborative applications.
Teams most often switch away when one of these starts to bite:
- •A feature or quota ceiling that a paid specialist covers and this free tool does not.
- •Missing integrations with the rest of your stack.
- •Performance or scale limits as your needs grow.
- •A specific feature gap you have hit in developer tools.
The 8 alternatives below cover the same core job (developer tools) with different trade-offs. Ranked by real-signal score: G2 and Capterra ratings, media mentions, and editor review.
8 alternatives to Yjs CRDT
Ranked by G2 and Capterra ratings, media mentions, and editor review, plus how directly they replace Yjs CRDT.
- 1
Supabase
FreemiumOpen source Firebase alternative
Direct alternative4.6(233)as of Sep 2026Compare Yjs CRDT vs Supabase → - 2
Stream
FreemiumAdd chat and activity feeds to your app
Direct alternative4.5(53)as of Sep 2026Compare Yjs CRDT vs Stream → - 3
Automerge
FreeVersion control for your data, enabling local-first, conflict-free, multiplayer applications.
Direct alternativeCompare Yjs CRDT vs Automerge → - 4
Porkbun
PaidBattle-tested at scaleDomain registrar with competitive pricing
Direct alternative4.8(26,552)as of Sep 2026Compare Yjs CRDT vs Porkbun → - 5
Babel
FreeBattle-tested at scaleUse tomorrow's JavaScript today, anywhere
Direct alternative4.4(32,967)as of Sep 2026Compare Yjs CRDT vs Babel → - 6
Testing Library
FreeBattle-tested at scaleSimple and complete testing utilities
Direct alternative4.5(21,131)as of Jul 2026Compare Yjs CRDT vs Testing Library → - 7
MongoDB
FreemiumBattle-tested at scaleDocument database that made NoSQL mainstream
Direct alternative4.6(1,376)as of Sep 2026Compare Yjs CRDT vs MongoDB → - 8
1Password Developer
PaidBattle-tested at scaleSecrets management for developers
Direct alternative4.6(14,132)as of Aug 2026Compare Yjs CRDT vs 1Password Developer →
Frequently asked questions
What is the best alternative to Yjs CRDT?
Based on real-signal scoring (G2 and Capterra ratings, media mentions, and editorial review), the top alternatives to Yjs CRDT are Supabase, Stream, Automerge. Each solves the same core job with different trade-offs on pricing, features, and integrations.
Is there a free alternative to Yjs CRDT?
Yjs CRDT is already 100% free (no paid upgrade path). Automerge is another fully free option listed here (Version control for your data, enabling local-first, conflict-free, multiplayer applications). Freemium tools on this list have a free tier plus paid plans — they are not the same as 100% free.
Why do people look for Yjs CRDT alternatives?
Common reasons teams switch away from Yjs CRDT even though it is free: missing integrations with the rest of their stack, performance or scale limits, or a specific feature gap in developer tools. The alternatives on this page solve the same core problem with a different feature set.
Side-by-side comparisons
In-depth comparison pages for Yjs CRDT versus each alternative.
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