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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bcrypt
Battle-tested password hashing for Node.js using the adaptive bcrypt algorithm.
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
Certifi
Mozilla's curated root CA bundle for verifying SSL/TLS certificates in Python.
gray-matter
Fast, dependable front-matter parser for YAML, JSON, TOML, and CoffeeScript metadata blocks
cookie
Basic HTTP cookie parser and serializer for HTTP servers, with zero dependencies and full RFC 6265 support.
toml
A native Rust encoder and decoder for TOML with first-class Serde support.
Protocol Buffers
Google's language-neutral, platform-neutral binary format for serializing structured data
zod-to-json-schema
Converts Zod validation schemas into standard JSON Schema, ready for OpenAPI, OpenAI, and JSON Schema draft 7 consumers.
csv-parse
A flexible, dependency-free CSV parser for Node.js and the browser with stream, callback, and sync APIs.
lxml
A fast, feature-rich Python library for processing XML and HTML, built on libxml2 and libxslt.
Smithy Core (@smithy/core)
The shared runtime orchestration layer that powers every AWS SDK for JavaScript v3 client, unifying middleware, serialization, retries, and auth.
JSON5
JSON for humans: an extended JSON syntax with comments, trailing commas, and unquoted keys for hand-written config.
hex
Encode and decode data to and from hexadecimal in Rust, with no_std and serde support.
PyArrow
Python bindings for Apache Arrow's columnar in-memory format, giving pandas, NumPy, and data pipelines a fast, zero-copy way to move and process tabular data.
query-string
Parse and stringify URL query strings in JavaScript with flexible array, number, and boolean handling.
jsonschema
The reference implementation of JSON Schema validation for Python, supporting every draft from 3 to 2020-12.
jsonc-parser
A fault-tolerant scanner and parser for JSONC (JSON with comments), with SAX-style visiting, DOM trees, and edit APIs.
serde_yaml
Strongly typed YAML serialization and deserialization for Rust, built on Serde
openapi-types
Type-safe TypeScript definitions for OpenAPI 2.0, 3.0, and 3.1 specification documents, covering paths, schemas, and components.
rustls
A modern, memory-safe TLS library for Rust with no unsafe code and no legacy crypto by default.
Charset Normalizer
A pure-Python universal charset detector that turns text of unknown encoding into clean Unicode.
gjson
Fast, dependency-light JSON value extraction for Go using dot-notation paths.
mapstructure
A Go library for decoding generic map values into strongly typed structs, and back again.
