Open Source Packages
Libraries, frameworks, tools, and SDKs used by the apps in this directory — scored the same way as the apps themselves.
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serde_json
The de facto standard JSON library for Rust, built on the Serde serialization framework
fs-extra
Drop-in replacement for Node's fs module adding copy, remove, mkdirs, and JSON helpers with native promise support.
FastAPI
A modern, high-performance Python web framework for building APIs with automatic validation, serialization, and interactive docs.
diff
A battle-tested JavaScript library for computing and applying text diffs at the character, word, line, sentence, CSS, or JSON level.
undici
A fast, spec-compliant HTTP/1.1 client for Node.js, built from scratch with zero runtime dependencies
Pino
A super fast, low-overhead JSON logger for Node.js applications.
Winston
A battle-tested Node.js logging library with pluggable transports, custom formats, and multiple log levels.
urllib3
A powerful, user-friendly HTTP client for Python with thread-safe connection pooling, TLS verification, and retry handling.
proxy-agent
Maps HTTP, HTTPS, SOCKS, and PAC proxy protocols to the correct Node.js http.Agent implementation automatically.
PyJWT
A Python implementation of RFC 7519 for encoding, decoding, and verifying JSON Web Tokens.
@clickhouse/client
The official TypeScript client for connecting Node.js applications to ClickHouse over HTTP.
body-parser
Node.js body-parsing middleware that turns raw HTTP request bodies into ready-to-use req.body objects.
type-fest
A collection of essential, ready-made TypeScript utility types beyond the built-in standard library.
superjson
Serialize JavaScript to a superset of JSON that keeps Dates, Maps, Sets, BigInts, and more intact.
fast-xml-parser
Pure-JS XML parser, builder, and validator with no C/C++ bindings and no callbacks
zod-to-json-schema
Converts Zod validation schemas into standard JSON Schema, ready for OpenAPI, OpenAI, and JSON Schema draft 7 consumers.
JSON5
JSON for humans: an extended JSON syntax with comments, trailing commas, and unquoted keys for hand-written config.
jsonschema
The reference implementation of JSON Schema validation for Python, supporting every draft from 3 to 2020-12.
Fastify
A fast and low-overhead web framework for Node.js, built around schema-based validation and a plugin architecture
gjson
Fast, dependency-light JSON value extraction for Go using dot-notation paths.
jsonrepair
Repair invalid or broken JSON documents — missing quotes, trailing commas, truncation, and more
http-proxy-middleware
The one-liner Node.js proxy middleware for connect, express, next.js, hono, and more.
orjson
A fast, correct, Rust-backed JSON library for Python with native dataclass, datetime, and numpy support
node-xml2js
XML-to-JavaScript-object parser and builder for Node.js
