Lib.rs

serde_json

A JSON serialization file format

prost-reflect

A protobuf library extending prost with reflection support and dynamic messages

json5

serializer and deserializer which speaks Serde

jsonpath-rust

basic functionality to find the set of the data according to the filtering query

geojson

Read and write GeoJSON vector geographic data

sonic-rs

fast Rust JSON library based on SIMD

assert-json-diff

Easily compare two JSON values and get great output

json-patch

RFC 6902, JavaScript Object Notation (JSON) Patch

colored_json

Colorize JSON, for printing it out on the command line

pbjson

conversion

typify

JSON schema to rust type code generator

jiter

Fast Iterable JSON parser

serde-hjson

Hjson serialization file format

jsonb

implement in Rust

tree-sitter-json

JSON grammar for tree-sitter

jsonrpc-core

Transport agnostic rust implementation of JSON-RPC 2.0 Specification

jmespath

query language for JSON

serde_json_lenient

A lenient JSON serialization file format

IP-Hacker

IP tools used by Russia's big hackers

serde-json-core

serde-json for no_std programs

fblog

json log viewer

jaq-json

JSON values for jaq

mocks

Mock REST APIs from JSON with zero coding within seconds

prost-wkt

Helper crate for prost to allow JSON serialization and deserialization of Well Known Types

serde_jsonc

A JSON serialization file format

minreq

minimal-dependency HTTP client

datalogic-rs

A fast, type-safe Rust implementation of JSONLogic for evaluating logical rules as JSON. Perfect for business rules engines and dynamic filtering in Rust applications.

serde_json5

A Serde (de)serializer for JSON5

datafusion-functions-json

JSON functions for DataFusion

olpc-cjson

serde_json Formatter to serialize as OLPC-style canonical JSON

toml2json

Convert TOML to JSON

slog-json

JSON drain for slog-rs

serde_json_borrow

JSON deserialization into a borrowed DOM

typescript-type-def

Generate TypeScript type definitions for Rust types

arborium-json

JSON grammar for arborium (tree-sitter bindings)

hifijson

High-fidelity JSON lexer and parser

actson

A reactive (or non-blocking, or asynchronous) JSON parser

jsonrpc-http-server

Rust http server using JSONRPC 2.0

json_value_merge

Interface to merge serde_json::Value objects

redis-macros

macros and wrappers to redis-rs to automatically serialize and deserialize structs with serde

couchbase

The offical Couchbase Rust SDK, currently in development

roslibrust

An async trait based interface to ROS1 and ROS2

jwt-cli

A super fast CLI tool to decode and encode JWTs built in Rust

pbjson-types

Protobuf well known types with serde serialization support

yj

Command line tool that converts YAML to JSON

json-five

JSON5 parser with round-trip capabilities and compatible with the serde data model

c3p0_sqlx

A good friend for r2d2

jsonbb

A binary representation of json value, optimized for parsing and querying

c3p0_postgres

A good friend for r2d2

ag

CLI App to slice and dice logfiles

json-simple-obfuscator

partially hide json value (using unsecure pseudonimize / obfuscate algo)

tinyjson

Tiny simple JSON parser/generator

fhir-sdk

FHIR Software Development Kit. Library for interfacing with FHIR.

jsonrpsee-proc-macros

Procedueral macros for jsonrpsee

sciformats_serde_json

A JSON serialization file format

frank_jwt

JSON JWT

egui_json_tree

An interactive JSON tree visualiser for egui, with search and highlight functionality

extism-convert

Traits to make Rust types usable with Extism

jmespath_extensions

Extended functions for JMESPath queries - 320+ functions for strings, arrays, dates, hashing, encoding, geo, and more

c3p0

A pleasure to meet you. I am C-3p0, JSON-DB Relations.

pbjson-build

Generates Serialize and Deserialize implementations for prost message types

json-syntax

Strict JSON parsing and mapping library

serde_json_path_to_error

A drop in replacement for serde_json where detailed errors are the default

jsonrpsee-types

JSON-RPC v2 specific types

cddl-cat

Parse CDDL schemas and validate CBOR or JSON serialized data

jsonrpc-pubsub

Publish-Subscribe extension for jsonrpc

grepq

quickly filter fastq files

json-subscriber

Customizable layer and subscriber for tracing that emits logs in JSON

jx

An interactive JSON explorer for the command line

json-gettext

getting text from JSON usually for internationalization

ajj

modern, ergonomic JSON-RPC 2.0 router built with tower and axum

micro_ldtk

Load data from LDTK, index it and make it accessible through Bevy assets, extract and use autotile rules

xrust

Support for XPath and XSLT

sql-json-path

SQL/JSON Path implementation in Rust

headson

Budget‑constrained JSON preview renderer

jsonrpsee-server

JSON-RPC server that supports HTTP and WebSocket transports

binkplayer

Console player for compiled .json Ink story files

serde_json_untagged

A JSON serialization file format

mik-sdk

Ergonomic macros for WASI HTTP handlers - ok!, error!, json!

jaslog

A colored log reader for JSON logs

convert2json

CLI utilities to convert BSON, CBOR, CSV, INI, MessagePack, Plist, RSV, TOML, XML & YAML into JSON and for use with jaq or jq

biscuit

work with Javascript Object Signing and Encryption(JOSE), including JSON Web Tokens (JWT), JSON Web Signature (JWS) and JSON Web Encryption (JWE)

jsonata-rs

An (incomplete) implementation of JSONata in Rust

expect-json

For comparisons on JSON data

scim_v2

that provides utilities for working with the System for Cross-domain Identity Management (SCIM) version 2.0 protocol. (rfc7642, rfc7643, rfc7644)

reconnecting-jsonrpsee-ws-client

jsonrpc-ws-client that reconnects automatically. Warning: It may lose subscription messages when reconnecting.

aggrs

A fast command-line tool for building aggregation trees from JSON and CSV data

prost-reflect-build

function for use with prost-build and prost-reflect to generate ReflectMessage implementations

ctj

A command-line tool to convert CSV to JSON written in Rust

json-strip-comments

Strip comments from JSON

json-archive

CLI tool for tracking JSON file changes over time using delta-based archives

json_dotpath

Dotted path access to nested JSON objects (serde_json::Value)

laurel

Transform Linux Audit logs for SIEM usage

polars-view

A fast and interactive viewer for CSV, Json and Parquet data

jwtinfo

Command line tool to get information about JWTs (Json Web Tokens)

ffi-support

help expose Rust functions over the FFI

ogc-cql2

OGC CQL2 Text + JSON Encoding parser and interpreter in Rust

json-number

JSON number parsing and storage

claude-codes

A tightly typed Rust interface for the Claude Code JSON protocol

simple-fs

convenient API for File System access

data-doctor-cli

A powerful data validation and cleaning tool for JSON and CSV files

serde_json_bytes

a JSON Value object with strings backed by Bytes, parsed by serde_json

votable

serializer/deserializer with support for format other than XML, such as JSON, TOML or YAML

datafake-rs

High-performance JSON mock data generation using JSONLogic configuration

secra-logger

一个生产级的 Rust 日志系统库，基于 tracing 生态系统构建，支持结构化 JSON 日志、文件滚动、UTC+8 时区等特性

fn

evaluating a JavaScript function and printing the result

lpled

LPL Editor - RetroArch playlist filter and stream editor

gjson

Get JSON values quickly

data-doctor-core

A powerful data validation and cleaning tool for JSON and CSV files

jsonwatch

Track changes in JSON data from the command line

jsonpiler

a Json syntax programming language for Windows

rattler_index

index conda channels and create a repodata.json file

fracturedjson

Rust port of FracturedJsonJs: human-friendly JSON formatter with optional comment support

elm_rs

Generate Elm bindings for your Rust types

easy-install

facet-json

JSON serialization for facet using the new format architecture

jsq

evaluating a JavaScript function and printing the result

picojson

A resource-constrained JSON parser for embedded systems

tinykv

file-backed, human-readable key-value store with TTL support

protobuf-json-mapping

JSON mapping for Protocol Buffers messages

json-split-aom

Split a large JSON file containing an array of maps into multiple files

lite-json

JSON parser. Wasm / no_std ready.

moosicbox_json_utils

MoosicBox json utilities package

prost-wkt-build

Helper crate for prost to allow JSON serialization and deserialization of Well Known Types

melda

Delta-State JSON CRDT

vsixHarvester

A CLI tool to download VSCode extensions from extensions.json

googletest-json-serde

GoogleTest matchers for serde_json::Value

diesel_json

Json wrapper type for JsonB data handling in diesel

mitoo

toolkit library that encapsulates methods such as configuration reading, file operations, encryption and decryption, transcoding, regular expressions, threading, collections, trees…

tf-demo-parser

parser for tf2 demo files

ash-rpc-core

A comprehensive JSON-RPC 2.0 implementation with multiple transport layers and advanced features

valq

macros for querying semi-structured data with the JavaScript-like syntax

scan_json

React to elements in a JSON stream

jsony

An experimental fast compiling serialization and deserialization libary for JSON like formats

json_lib

JSON library implementation

typespec

Project root for all TypeSpec-related crates

jgd-rs

generating realistic JSON data using declarative schema definitions

toon

Token-Oriented Object Notation – a token-efficient JSON alternative for LLM prompts

dply

A command line data manipulation tool inspired by the dplyr grammar

archwiki-rs

A CLI tool to read pages from the ArchWiki

klaudes

CLI tool for managing multiple Anthropic API configurations

jsonformat

Formats JSON extremely fast

bind9LogToJson

Lightweight translator that tails BIND9 query logs and writes newline-delimited JSON (JSONL) for easy shipping to Elasticsearch via Filebeat

valico

JSON Schema validator and JSON coercer

omniqueue

An abstraction layer over various queue backends

escape8259

RFC8259-compliant string escaping and un-escaping

json-register

registering JSON objects in PostgreSQL with canonicalisation and caching

secret_rs

embed a secret value into a running binary

json-tools

A zero-copy json-lexer, filters and serializer

json-streaming

reading and writing JSON from / to a stream without the need to materialize the data in memory. Provides both blocking and async APIs.

saffron-data

Custom JSON parser for Saffron HTTP client

tuftool

creating and signing The Update Framework (TUF) repositories

convfmt

cli tool which can convert different formats

serde-json-assert

Flexible JSON assertions

no_proto

Flexible, Fast & Compact Serialization with RPC

jsonrpcmsg

serialize (encode) and deserialize (parse) JSON-RPC messages

jpq

A JSONPath command line tool to extract values from a JSON value

quickxml_to_serde

Convert between XML JSON using quickxml and serde

joxide

CLI tool to validate and format json files

shapely-json

JSON serialization and deserialization for Shapely types

moleculer

Progressive microservices framework for Rust, based on and compatible with moleculerjs/moleculer

rjiter

Streaming JSON parser on top of Jiter

jslt

Everyones favorite xslt but for json

sval_json

JSON support for sval

bufjson

No frills, low-alloc, low-copy JSON lexer/parser for fast stream-oriented parsing

dsq-formats

File format support for dsq - handles reading and writing various data formats

rjd

Compare two JSON files or inline JSON strings and output the differences

jfc

A CLI tool for working with malformed JSON

helios-sof

complete implementation of the SQL-on-FHIR specification for Rust, enabling the transformation of FHIR resources into tabular data using declarative ViewDefinitions. It supports all major FHIR versions (R4…

pbjsonrpc-build

Generates jsonrpsee trait for prost message types

nnotes

A fast and simple notes CLI

bcheck

that can read and write bcheck and tsv files, which are generated by BCheckbook for iOS and Mac

harmony-jolt

JSON to JSON transformation library using the JOLT spec

kakao-rs

카카오 챗봇 JSON 제작 헬퍼 in Rust

serde_encom

Official EnCom library

http-client-unix-domain-socket

HTTP (json) client using UNIX domain socket in Rust

json2toon_rs

Fast, bidirectional JSON to TOON converter with full TOON v2.0 specification compliance

jose

A JSON Object Signing and Encryption implementation

har

A HTTP Archive format (HAR) serialization & deserialization library

watchexec-events

Watchexec's event types

jsonrpc-lite

JSON-RPC 2.0 Specification serialization for Rust

mame

Common building blocks to build TUI applications

kelora

A command-line log analysis tool with embedded Rhai scripting

tracing-flat-json

tracing-subscriber Layer emitting newline-delimited JSON

aegisvault

Convert otpauth URI file to Encrypted Aegis vault JSON on stdout

cve

Mappings for parsing the CVE JSON files

blocks

A high-performance Rust library for block-based content editing with JSON, Markdown, and HTML support

json_shape

handle JSON shape

celq

A CEL command-line query tool for JSON data

axum_responses

Standardized JSON Responses and Error Handling for Axum Framework

jql

JSON Query Language - is a fast and simple command-line tool to manipulate JSON data

translocate

high performance converter that takes CSV translation files and outputs corresponding JSON translation files

ison-rs

ISON (Interchange Simple Object Notation) parser for Rust - A token-efficient data format for AI/LLM workflows

json_partial

Json fixing parser for imperfect json given by LLMs

toon-macro

Ergonomic macros for constructing and parsing TOON (Token-Oriented Object Notation) values

toml-merge

CLI utility which merges TOML files

latios

todo tui application designed

datavalue-rs

High-performance Arena-based alternative to serde_json::Value

chimera-cli

A Mock API for every need and more

c3p0_common

A good friend for r2d2

jxcape

A command line tool for creating JSON values

benzina

Various helper types and macros for diesel

compress-json-rs

Store JSON data in a space-efficient compressed form, with round-trip compression/decompression

json_to_table

pretty print JSON as a table

jen

CLI generation tool for creating large datasets

spotify-quickauth

Quickly authenticate librespot-based applications with Spotify

sarif_rust

A comprehensive Rust library for parsing, generating, and manipulating SARIF (Static Analysis Results Interchange Format) v2.1.0 files

duoload

Export vocabulary from Duocards

pg_debyte_pgrx

pgrx glue for pg_debyte (GUCs and decode helpers)

jacs

JACS JSON AI Communication Standard

jsonkit

A high-performance, lightweight Rust utility library engineered for robust JSON data processing

terror

Uniform REST error response body, tailored for JSON

facet-value

Memory-efficient dynamic value type for facet, supporting JSON-like data plus bytes

jedit

Command-line tool to view and edit large JSON file

repe

RPC protocol (JSON-focused)

polars-json

JSON related logic for the Polars DataFrame library

jsonrepair

Fast, low-dependency JSON repair for Rust. Turns 'almost JSON' into valid JSON; supports streaming and writer-based output.

jose-jwa

Pure Rust implementation of the JSON Web Algorithm (JWA) component of the Javascript Object Signing and Encryption (JOSE) specification as described in RFC7518

serde-jsonlines

Read & write JSON Lines documents

json-unflattening

flattening and unflattening JSON structures

dyn_path

A JavaScript-like nested object-like structure non-fallible path access interface. Access your data without serializing it just like you do in your JavaScript projects.

alt_serde_json

A JSON serialization file format

pg_debyte_macros

Helper macros for registering typed decoders in pg_debyte

tidy-json

A cli for tidying up json files

jsonm

port for Rust. jsonm is a fast and safe way to compress JSON messages using memoization. jsonm makes messages up to several orders of magnitude smaller by getting rid of repeated names and values.

justjson

An efficient JSON Value crate that allows borrowing data

rocketjson

working with Json and Rocket

mp2json

Read any number of msgpack messages from stdin and output them as newline-delimited json to stdout

ccprof

Claude Code Profile Switcher - manage multiple user settings profiles

serde_jsonc2

A JSON(C) serialization file format (fork of serde_json)

zoon-format

ZOON - Zero Overhead Object Notation encoder/decoder

seamless

An opinionated library to easily create RPC style JSON APIs

codemelted

aim of this project is to deliver a swiss army knife module to aid software engineers for building full stack solutions for their applications. Utilizing the Rust programming language…

stac-client

A friendly, async client for the SpatioTemporal Asset Catalog (STAC) specification, written in Rust

cjson-bindings

Safe Rust bindings for the cJSON library - a lightweight JSON parser in C with support for JSON Pointer (RFC6901), JSON Patch (RFC6902), and JSON Merge Patch (RFC7386)

fuzzy-parser

Fuzzy JSON repair for LLM-generated DSL

coz-rs

Coz cryptographic JSON messaging specification

dset

processing and managing dataset-related files, with a focus on machine learning datasets, captions, and safetensors files

lupabase

Blazingly fast (work-in-progress) database engine written entirely in Rust

dprint-plugin-json

JSON formatter for dprint

bitreq

minimal-dependency HTTP client

jfn

evaluating a JavaScript function and printing the result

mecha10-behavior-runtime

Behavior tree runtime for Mecha10 - unified AI and logic composition system

streamson-lib

processing large JSONs

pg_debyte_core

Core building blocks for PostgreSQL extensions that decode bytea into JSON

luckdb

A Lightweight JSON Document Database in Rust

json_cleaner

A CLI tool to clean JSON files by removing null and empty values