* [Typia v12.0.0](https://github.com/samchon/typia) – Transformer library providing super-fast runtime validators, enhanced JSON schema, LLM schemas, protocol buffer support, and random data generation.

* [Neo.mjs 12.0.0](https://github.com/neomjs/neo) – Modern JavaScript framework for building feature-rich web applications with multi-threading support.

* [fq v0.17.0](https://github.com/wader/fq) – Tool and language for querying and manipulating binary data formats.

* [5e-database v4.4.0](https://github.com/5e-bits/5e-database) – Database supporting the D&D 5th Edition API.

* [node-json-db v2.6.0](https://github.com/Belphemur/node-json-db) – JSON file-based asynchronous database for Node.js with hierarchical data access using DataPath.

* [Countries, Languages & Continents data v3.3.0](https://github.com/annexare/Countries) – Dataset of countries, continents, and languages including ISO codes, capitals, currencies, native names, calling codes, and emoji flags.

* [dyff v1.11.0](https://github.com/homeport/dyff) – Diff tool comparing YAML (and sometimes JSON) files, showing compact, path-referenced change reports.

* [EasyDB v2.6.0](https://github.com/shencangsheng/easydb_app) – Lightweight Tauri- and Rust-based desktop app for querying local CSV, Excel, JSON, NDJSON, and Parquet files using SQL without an external database.

* [Open Policy Agent v1.14.0](https://github.com/open-policy-agent/opa) – General-purpose policy engine for unified, context-aware policy enforcement across various systems.

* [Dasel v3.3.0](https://github.com/TomWright/dasel) – Command-line tool and Go library for querying, modifying, and converting structured data across JSON, YAML, TOML, XML, CSV, HCL, and INI.

* [easyjson v0.9.2](https://github.com/mailru/easyjson) – Fast, reflection-free JSON marshaling and unmarshaling for Go structs with generated code.

* [webrpc v0.36.0](https://github.com/webrpc/webrpc) – Schema-driven tool generating typed client and server code for backend Web services.

* [Wretch 3.0.7](https://github.com/elbywan/wretch) – A small, intuitive, and type-safe fetch wrapper simplifying network requests and response handling.

* [JSON v2.19.0](https://github.com/ruby/json) – Implementation of the JSON specification for Ruby.

* [Svelte Inspect Value v0.11.0](https://github.com/ampled/svelte-inspect-value) – Configurable value inspector components for state monitoring, debugging, and data presentation in Svelte.

* [Serialize JavaScript v7.0.4](https://github.com/yahoo/serialize-javascript) – Serializes JavaScript objects to an extended JSON format supporting regexps, dates, functions, sets, and maps.

* [Minify v2.24.10](https://github.com/tdewolff/minify) – Minifier package for HTML5, CSS3, JS, JSON, SVG, and XML, designed for high performance.

* [Typeorm Extension v3.9.0](https://github.com/tada5hi/typeorm-extension) – Library for managing databases, seeding, and applying query parameters.

* [fastjson v1.6.10](https://github.com/valyala/fastjson) – Fast JSON parser and validator for Go that parses arbitrary JSON without reflection or code generation.

* [The Jaxon core library v5.7.0](https://github.com/jaxon-php/jaxon-core) – PHP library for creating Ajax web applications by calling PHP classes to update pages without full reload.

* [ojg v1.28.1](https://github.com/ohler55/ojg) – High performance JSON parser and toolset optimized for processing large, loosely structured data sets in Go.

* [Quamina v2.0.2](https://github.com/timbray/quamina) – Fast Go library for matching JSON-like events against declarative field-based patterns

* [Contentful CLI v3.10.4](https://github.com/contentful/contentful-cli) – Command-line tool for managing spaces, content, migrations, extensions, and configuration on the Contentful platform.

* [store.js v2.1.1](https://github.com/jaywcjlove/store.js) – Lightweight JavaScript API for handling browser localStorage with a small footprint and no dependencies.

* [check_http_json.rb 1.15.0](https://github.com/phrawzty/check_http_json) – Nagios plugin for parsing JSON from HTTP responses.

* [genshin-db v5.2.9](https://github.com/theBowja/genshin-db) – JSON data for Genshin Impact with flexible searching functions across various categories.

* [NMAP-Formatter v3.1.2](https://github.com/vdjagilev/nmap-formatter) – Tool converting NMAP XML output into multiple formats including HTML, CSV, JSON, Markdown, Graphviz, SQLite, Excel, and D2.

* [react-docgen @react-docgen/cli@3....](https://github.com/reactjs/react-docgen) – Highly customizable library that extracts information from React components for documentation generation.

* [JSON-Server v1.0.0-beta.13](https://github.com/typicode/json-server) – Provides a full fake REST API from a JSON file with zero coding, runnable via CLI.

* [Content Collections @content-collections...](https://github.com/sdorra/content-collections) – Transform content into type-safe data collections with built-in validation and preprocessing.

* [pretty-print-json v3.0.7](https://github.com/center-key/pretty-print-json) – Library to format JSON data into indented and colorized HTML.

* [Jsonvalue v1.4.3](https://github.com/Andrew-M-C/go.jsonvalue) – Fast, convenient Go library for manipulating unstructured JSON and customizing marshaling.

* [jsonrepair v0.2.16](https://github.com/kaptinlin/jsonrepair) – High-performance Go library for repairing malformed JSON and normalizing common JSON issues, including output from LLMs.

* [TypeScript and JavaScript lib generator @types/web@0.0.343](https://github.com/microsoft/TypeScript-DOM-lib-generator) – Tool to generate web-based TypeScript and JavaScript library definition files.