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json-joy

json-joy library implements cutting-edge real-time and
collaborative editing algorithms and other utilities for JSON data models.
Major focus of json-joy is development of the JSON CRDT protocol, a
Conflict-free Replicated Data Type that enables seamless
merging of changes in JSON data models, avoiding conflicts between replicas.

• Website
• Documentation
• JSON CRDT Explorer
• μ txt (mu-txt) rich-text editor powered by JSON CRDT
• Integrations
  • React.js
  • React.js <CollaborativeInput>
  • DOM <input> and <textarea>
  • Plain text editors:
    • Ace & React.js <CollaborativeAce>
    • CodeMirror
    • Monaco
  • Rich-text editors:
    • Slate
    • ProseMirror
    • Quill & React.js <CollaborativeQuill>
• Blog posts
  • Collaborative Text Editors (Part 2): Plain Text Synchronization
  • Collaborative Text Editors (Part 1): Prelude
  • Fuzz Testing RGA CRDT
  • Benchmarking JSON Serialization Codecs
  • List CRDT Benchmarks
  • Blazing Fast List CRDT
• JSON CRDT specification
• JSON CRDT Patch specification
• JSON Expression specification
• JSON Reactive RPC specification
• Compact JSON encoding
• API Reference
• Test coverage

Notable features

• Full JSON implementation as a CRDT (Conflict-free Replicated Datatype).
• The fastest list CRDT implementation in JavaScript.
• The fastest text OT (Operational Transformation) implementation in JavaScript.
• The fastest implementation of CBOR, DAG-CBOR, MessagePack, UBJSON, and JSON codecs in JavaScript.
• The fastest (HTTP) router implementation in JavaScript.
• The fastest JSON schema validation implementation in JavaScript.
• Very fast binary tree (Radix, AVL, Red-black*, Splay) implementations in JavaScript.
• Very fast JSON Patch (and JSON Pointer) implementation in JavaScript, including many non-standard operations, and JSON Predicate implementation.
• Very fast JSON Expression implementation in JavaScript.