opendevicedb / opendevicedb
Open directory of 21,000+ devices whose protocols or firmware are already open (OpenWrt, LineageOS, coreboot, Zigbee, Z-Wave, appliances…), so nobody — human or AI agent — redoes the work. Website, JSON API, MCP server.
sequelize / sequelize
Feature-rich ORM for modern Node.js and TypeScript, it supports PostgreSQL (with JSON and JSONB support), MySQL, MariaDB, SQLite, MS SQL Server, Snowflake, Oracle DB, DB2 and DB2 for IBM i.
toon-format / toon
🎒 Token-Oriented Object Notation (TOON) – compact, human-readable serialization of JSON data for LLM prompts. TypeScript SDK, CLI, benchmarks.
vercel-labs / json-render
The Generative UI framework
sindresorhus / ky
🌳 Tiny & elegant JavaScript HTTP client based on the Fetch API
rjsf-team / react-jsonschema-form
A React component for building Web forms from JSON Schema.
glideapps / quicktype
Generate types and converters from JSON, Schema, and GraphQL
Turfjs / turf
A modular geospatial engine written in JavaScript and TypeScript
raineorshine / npm-check-updates
Find newer versions of package dependencies than what your package.json allows
panva / jose
JWA, JWS, JWE, JWT, JWK, JWKS for Node.js, Browser, Cloudflare Workers, Deno, Bun, and other Web-interoperable runtimes
sinclairzx81 / typebox
JSON Schema Type Builder with Static Type Resolution for TypeScript
orval-labs / orval
orval is able to generate client with appropriate type-signatures (TypeScript) from any valid OpenAPI v3 or Swagger v2 specification, either in yaml or json formats. 🍺
samchon / typia
Super-fast/easy runtime validators and serializers via transformation
surveyjs / survey-library
Open-source JavaScript form library for React, Angular, Vue, and plain JavaScript. Render dynamic JSON-driven forms, multi-step form wizards, surveys, quizzes, and other data-entry tools.
liustack / modlens
The first vision plugin for DeepSeek Harness, and the vision bridge for every text-only coding agent. Paste an image, get structured JSON evidence (OCR, layout, semantics). | 全网最强 DeepSeek Harness 外挂视觉插件，为 DeepSeek、GLM 等纯文本模型外挂视觉能力，粘贴图片即得结构化 JSON 证据（OCR、版面、语义）。
antvis / L7
🌎 Large-scale WebGL-powered Geospatial Data Visualization analysis engine.
reactjs / react-docgen
A CLI and library to extract information from React component files for documentation generation purposes.
stoplightio / spectral
A flexible JSON/YAML linter for creating automated style guides, with baked in support for OpenAPI (v3.1, v3.0, and v2.0), Arazzo v1.0, as well as AsyncAPI v2.x.
elegantapp / pwa-asset-generator
Automates PWA asset generation and image declaration. Automatically generates icon and splash screen images, favicons and mstile images. Updates manifest.json and index.html files with the generated images according to Web App Manifest specs and Apple Human Interface guidelines.
devcontainers / cli
A reference implementation for the specification that can create and configure a dev container from a devcontainer.json.
ngx-formly / ngx-formly
📝 JSON powered / Dynamic forms for Angular
eclipsesource / jsonforms
Customizable JSON Schema-based forms with React, Angular and Vue support out of the box.
codyogden / killedbygoogle
Part guillotine, part graveyard for Google's doomed apps, services, and hardware.
Thinkmill / keystatic
First class CMS experience, TypeScript API, Markdown & YAML/JSON based, no DB
geoman-io / leaflet-geoman
🍂🗺️ The most powerful leaflet plugin for drawing and editing geometry layers
AhmadHassan-BTed / Jantt
The AI-native JSON Gantt chart engine. Dependency-free interactive timelines with React, script-tag, CLI, topological DAG solver, and formal JSON schema.
react-hook-form / resolvers
📋 Validation resolvers: Yup, Zod, Superstruct, Joi, Vest, Class Validator, io-ts, Nope, computed-types, typanion, Ajv, TypeBox, ArkType, Valibot, effect-ts, VineJS and Standard Schema
withcatai / node-llama-cpp
Run AI models locally on your machine with node.js bindings for llama.cpp. Enforce a JSON schema on the model output on the generation level
alxshelepenok / lumen
A constantly evolving and thoughtful architecture for creating static blogs.
fullstack-build / tslog
📝 tslog - Universal Logger for TypeScript and JavaScript
evroon / bracket
Selfhosted tournament system
vega / ts-json-schema-generator
Generate JSON schema from your Typescript sources
yamlresume / yamlresume
Resumes as code in YAML, brought to you with ❤️ by PPResume.
placemark / placemark
A flexible web-based editor, converter, visualization tool, for geospatial data
unjs / destr
🚀 Faster, secure and convenient alternative for JSON.parse for arbitrary inputs
sindresorhus / conf
Simple config handling for your app or module
vsme / chinese-days
中国法定节假日、调休和工作日、24节气查询，农历阳历互转，提供 JSON 文件，对非开发者，还提供 iCal 日历订阅，可供 Google Calendar、Apple Calendar、Microsoft Outlook 等客户端使用。
surveyjs / survey-creator
Embeddable JSON form builder for React, Angular, Vue, and plain JavaScript. Drag-and-drop UI, your backend.
google / schema-dts
JSON-LD TypeScript types for Schema.org vocabulary
lobehub / lobe-chat-agents
🤖 / 🏪 Agent Index - This is the agent index for LobeChat. It accesses index.json from this repository to display a list of available agents for LobeChat to the agent market.
sdorra / content-collections
Transform your content into type-safe data collections
gajus / roarr
JSON logger for Node.js and browser.
JamesLMilner / terra-draw
A library for drawing on maps that supports Mapbox, MapLibre, Google Maps, OpenLayers and Leaflet out the box
APIDevTools / json-schema-ref-parser
Parse, Resolve, and Dereference JSON Schema $ref pointers in Node and browsers
polkadot-js / api
Promise and RxJS APIs around Polkadot and Substrate based chains via RPC calls. It is dynamically generated based on what the Substrate runtime provides in terms of metadata.
grafana / grafana-infinity-datasource
API datasource for grafana. Visualize data from JSON / CSV / TSV / XML / GraphQL endpoints
apify / mcpc
The most compatible MCP CLI client. Supports: tools, resources, prompts, completions, async tasks, skills, stdio and Streamable HTTP (MCP 2026-07-28 and 2025-11-25). Persistent sessions, OAuth 2.1 with DCR, CIMD, client credentials, and ID-JAG, OS keychain, --json for code mode, grep across servers, proxy for AI sandboxes, x402 & more.
mutativejs / travels
A fast, framework-agnostic undo/redo core powered by Mutative JSON Patch
tsndr / cloudflare-worker-jwt
A lightweight JWT implementation with ZERO dependencies for Cloudflare Workers.
RobinTail / express-zod-api
A Typescript framework to help you get an API server up and running with I/O schema validation and custom middlewares in minutes.
moltar / typescript-runtime-type-benchmarks
📊 Benchmark Comparison of Packages with Runtime Validation and TypeScript Support
Belphemur / node-json-db
A simple "database" that use JSON file for Node.JS.
zce / velite
Turns Markdown / MDX, YAML, JSON, or others into app's data layer with Zod schema.
darkrishabh / agent-skills-eval
A test runner for agentskills.io-style AI agent skills
liustack / modsearch
🥇 The strongest free web search plugin for DeepSeek Harness, and the search bridge for every model without native web access. Free, no signup, no API key. Ask the web or X, get structured JSON evidence. | 🥇 全网最强的 DeepSeek Harness 免费联网搜索插件，免费免注册免 API key。为不能联网的模型补上搜索，问网页或 X，拿回结构化 JSON 证据（搜索、抓取、引用）。
OWASP / cve-lite-cli
Fast, developer-friendly JS/TS dependency vulnerability scanner with local lockfile scanning, OSV matching, direct vs transitive visibility, --fix, JSON output, and practical remediation guidance.
microsoft / node-jsonc-parser
Scanner and parser for JSON with comments.
aykutkardas / json-function
Query arrays of JSON objects with where, search, select, orderBy, limit, schema and joins. Typed, dependency-free, fast on large arrays.
ardatan / feTS
🗹 TypeScript HTTP Framework focusing on e2e type-safety, easy setup, performance & great developer experience
chapter-three / next-drupal
Next.js for Drupal has everything you need to build a next-generation front-end for your Drupal site: SSG, SSR, and ISR, Multi-site, Authentication, Webforms, Search API, I18n and Preview mode (works with JSON:API and GraphQL).