JSON for Modern C++

json json-serialization msgpack cbor json-parser header-only messagepack json-pointer json-patch stl-containers rfc-6901 rfc-6902 rfc-7159 rfc-7049 json-diff bson ubjson json-merge-patch rfc-8259

• Updated Nov 12, 2026
• C++

System.Text.Json-based support for all of your JSON needs.

json json-schema json-pointer json-patch yaml2json json-path jsonschema-validator json-logic json-e

• Updated Nov 12, 2026
• C#

A C++, header-only library for constructing JSON and JSON-like data formats, with JSON Pointer, JSON Patch, JSON Schema, JSONPath, JMESPath, CSV, MessagePack, CBOR, BSON, UBJSON, toon-format

json csv cpp json-serialization cbor json-parser messagepack json-pointer json-patch json-diff bson ubjson json-parsing jsonpath jmespath csv-reader jsonschema json-construction streaming-json-read toon-format

• Updated Nov 9, 2026
• C++

C++ header-only JSON library

json cpp json-schema msgpack cbor header-only cpp17 json-pointer json-patch ubjson jaxn

• Updated Oct 15, 2026
• C++

Compute the diff between two JSON documents as a series of JSON Patch (RFC6902) operations

json-patch rfc-6902 jsonpatch rfc6902 rfc-7386 mutating-webhook kubernetes-webhook merge-patch

• Updated Jul 20, 2026
• Go

Applying JSON Patches in Python

python json json-patch python-json

• Updated Nov 11, 2026
• Python

JSON object diffs and reversible patching (jsondiffpatch compatible)

json-patch json-diff patch jsondiffpatch unpatch

• Updated Jul 23, 2025
• C#

A scala diff/patch library for Json

diff json scala json-patch patch

• Updated Sep 25, 2026
• Scala

An implementation of JSON Patch and JSON Pointer for Ruby

ruby json json-pointer json-patch

• Updated Aug 21, 2024
• Ruby

Framework for representing, validating, querying, and manipulating generic JSON values in Swift 6. Supported are standards such as JSON Text Sequences (RFC 7464), JSON Pointer (RFC 6901), JSON Path (RFC 9535), JSON Patch (RFC 6902), JSON Merge Patch (RFC 7396), and JSON Schema.

swift json json-schema json-parser json-pointer json-patch json-path json-merge-patch json-schema-validator json-streaming json-text-sequences

• Updated Oct 25, 2026
• Swift

An object-oriented JSON Schema implementation for Python.

json json-schema json-pointer json-patch

• Updated Dec 28, 2025
• Python

Generic algorithms and data structures for Lazarus/Free Pascal

lazarus algorithm graph-algorithms graphs priority-queue generics freepascal multiset msgpack levenshtein-distance json-patch aho-corasick jsonpath multimap radix-sort string-matching timsort lcs-algorithm pdqsort json-typedef

• Updated Oct 30, 2026
• Pascal

High-performance, low-allocating JSON object diff and patch extension for System.Text.Json. Support generating patch document in RFC 6902 JSON Patch format.

diff json compare json-patch rfc-6902 json-diff patch jsondiffpatch system-text-json

• Updated Apr 22, 2024
• C#

Mongoose plugin that saves a history of JSON patch operations for all documents belonging to a schema in an associated 'patches' collection

json schema mongodb mongoose history changes changeset json-patch

• Updated Jan 25, 2026
• JavaScript

ES6 proxy powered JSON Object observer that emits JSON patches when changes occur to your object tree.

proxy json-patch observe rfc6902

• Updated Dec 30, 2022
• JavaScript

JSON command-line swiss knife: diff, reordering, patch, pointer, validator, codegen

code-generator json-schema json-pointer json-patch

• Updated Dec 19, 2023
• PHP

Tests for implementations of json-patch

json ietf json-patch spec-tests

• Updated Apr 20, 2025

The JsonCons.Net libraries complement the System.Text.Json namespace with support for JSON Pointer, JSON Patch, JSON Merge Patch, JSONPath, and JMESPath.

json csharp dotnet dotnet-core json-pointer json-patch jsonpath jmespath json-merge-patch jsonpointer jsonpatch dotnetstandard

• Updated Jan 27, 2024
• C#

$merge and $patch keywords for Ajv JSON-Schema validator to extend schemas

json-schema keywords json-patch ajv json-merge-patch

• Updated Dec 12, 2023
• JavaScript

Packed ASTs for compact and efficient JSON representation, with JSON Pointer, JSON Patch support.

json nim json-pointer json-patch nim-lang canonicaljson

• Updated Jan 30, 2026
• Nim