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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TanStack Query
Hooks-based async state management for fetching, caching, and syncing server data in React.
qs
A battle-tested querystring parser and serializer for Node.js with nested object support and built-in security limits.
Prisma Client
Auto-generated, type-safe database client for Node.js and TypeScript.
knex
A flexible, portable SQL query builder for Node.js supporting PostgreSQL, MySQL, CockroachDB, SQL Server, SQLite3, and Oracle.
query-string
Parse and stringify URL query strings in JavaScript with flexible array, number, and boolean handling.
Mongoose
Schema-based MongoDB object modeling for Node.js, with built-in validation, middleware hooks, and typed models.
soupsieve
The pure-Python CSS4 selector engine that powers Beautiful Soup's select() and select_one() methods.
Apache DataFusion
The extensible, Arrow-native SQL and DataFrame query engine for building fast analytical systems in Rust.
objection.js
A SQL-friendly ORM for Node.js, built on Knex, that gets out of your way instead of hiding SQL behind a DSL.
jsonata
A lightweight query and transformation language for filtering, mapping, and reshaping JSON data with concise, path-based expressions.
url-parse
Small, dependency-light URL parser that works identically in Node.js and the browser.
jsonpath-ng
A standard-compliant JSONPath implementation for Python with arithmetic operators, AST manipulation, and in-place updates.
libpg-query-node
The real PostgreSQL parser, compiled to WebAssembly, for parsing SQL into ASTs in any JavaScript runtime.
astra-db-ts
The official TypeScript client for DataStax Astra DB, giving typed access to vector search, JSON collections, and CQL-backed tables via the Data API.
jmespath.rs
A Rust implementation of JMESPath, the declarative query language for extracting and transforming data from JSON.
PyPika
A Python SQL query builder that constructs expressive, vendor-flexible SQL using a fluent builder API.
react-awesome-query-builder
A highly configurable React component for building complex filter queries with a drag-and-drop UI, exportable to SQL, MongoDB, JsonLogic, and more.
js-search
Lightweight, dependency-free client-side search for JavaScript and JSON objects
Query Key Factory
Typesafe query key management for TanStack Query with first-class autocompletion.
graphql-query-complexity
Query complexity analysis and validation to protect graphql-js servers
groq-js
A TypeScript implementation of GROQ, the query language for filtering, joining, and shaping JSON documents.
@ucast/mongo2js
Evaluate MongoDB-style query conditions against plain JavaScript objects with a single guard() call.
querystringify
A small, dependency-free JavaScript library for parsing and building URL query strings, with built-in protection against prototype-pollution keys.
sql_query_builder
A composable SQL query builder for Rust that lets you build dynamic SELECT, INSERT, UPDATE, and DELETE queries with idiomatic, chainable methods.
