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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tzdata
Python package providing the IANA time zone database as installable, versioned data
FastMCP
The fast, Pythonic framework for building Model Context Protocol servers, clients, and apps
React Virtualized
React components for efficiently rendering large, scrollable lists and tabular data.
joi
The most powerful schema description language and data validator for JavaScript
Pydantic AI
A type-safe Python agent framework built by the Pydantic team
networkx
Python library for creating, manipulating, and analyzing complex networks and graphs.
zxcvbn
A realistic password strength estimator that models how attackers actually guess passwords, not arbitrary composition rules.
ExcelJS
Read, manipulate, and write XLSX spreadsheet data, styles, and formulas in JavaScript
mathjs
Extensive math library for JavaScript and Node.js with big numbers, complex numbers, units, and matrices.
@apollo/server
Spec-compliant, production-ready GraphQL server for Node.js
jsoniter
A high-performance, 100% compatible drop-in replacement for Go's encoding/json.
Pragmatic drag and drop
A low-level, framework-agnostic drag and drop toolkit built on native browser DnD, powering Trello, Jira, and Confluence.
Doctrine DBAL
A PHP database abstraction layer with a fluent query builder and schema introspection across major RDBMS engines
React-Draggable
A simple, dependency-free React component for making any element draggable.
ejs
Embedded JavaScript templates for rendering HTML with plain JS control flow
go-grpc-middleware
A collection of reusable gRPC interceptors for Go covering auth, logging, retries, validation, and recovery.
Iconify for React
React component for the Iconify universal icon framework, spanning 200+ icon sets and 300k+ icons
MiniSearch
Tiny, dependency-free in-memory full-text search engine for browser and Node
Lingui
A readable, 2kb internationalization runtime for JavaScript with ICU MessageFormat and rich-text support.
openapi-ts
OpenAPI-to-TypeScript code generator producing production-grade SDKs, Zod schemas, and TanStack Query hooks.
toml
A reflection-based TOML decoder and encoder for Go, built to feel like encoding/json.
structlog
Structured, typed logging for Python built on plain functions and dictionaries instead of a bespoke logging DSL.
bluemonday
A fast, allowlist-based HTML sanitizer for Go that strips XSS vectors from untrusted content while preserving safe markup.
aws-sdk-s3
AWS's official, code-generated Rust client for Amazon S3
