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.

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.