Automerge vs Yjs

Side-by-side open-source comparison for 2026. Yjs currently leads on GitHub stars (21.6k) over Automerge (6.2k). Both tools list each other as alternatives in this directory.

Quick comparison

Automerge vs Yjs, ranked by GitHub stars
#ToolStarsLanguageLicense
1Yjs

Provides shared data types for building collaborative software, enabling real-time collaboration in applications.

21.6kJavaScriptOther
2Automerge

Automerge is a powerful library that provides a JSON-like Conflict-free Replicated Data Type (CRDT) data structure, enabling concurrent modifications by different users and automatic merging of changes. It helps developers build collaborative and offline-first applications with strong consistency guarantees.

6.2kJavaScriptMIT License

Overview

Automerge

Automerge is a powerful library that provides a JSON-like Conflict-free Replicated Data Type (CRDT) data structure, enabling concurrent modifications by different users and automatic merging of changes. It helps developers build collaborative and offline-first applications with strong consistency guarantees.

JavaScript ยท MIT License ยท 6.2k GitHub stars

Yjs

Provides shared data types for building collaborative software, enabling real-time collaboration in applications.

JavaScript ยท 21.6k GitHub stars

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Frequently asked questions

Which is more popular, Automerge or Yjs?

Yjs currently has more GitHub stars (21.6k) than Automerge (6.2k). Star counts are a proxy for community adoption.

Are Automerge and Yjs free?

Yes. Both are open source and free to use in your own projects.

How does this comparison work?

Pages only exist for mutual alternatives โ€” each tool lists the other in its alternatives metadata. Stats come from the canonical tool records in this directory.

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