Vendors (pure ES/TS + server-side runtimes)

Third-party JavaScript and TypeScript libraries for server-side runtimes, organized by category.

• Node.js Toolbox
• General utility and functional programming libraries
  General-purpose utility and functional programming libraries for JavaScript, covering common data manipulation, composition, and functional helpers.
• Polyfills and shims
  Polyfills and shims for ECMAScript features not natively supported in all environments.
• Asynchronous JavaScript (Promises)
  Libraries for managing asynchronous control flow and promise-based patterns in JavaScript, including circuit breakers and effect systems.
• Authentication
  Libraries and frameworks for authenticating users in JavaScript and Node.js applications, including session management and OAuth strategies.
• Authorization
  Libraries for implementing authorization, permissions, and access control rules in JavaScript applications.
• Browser automation and web scraping
  Tools for automating browsers and scraping web pages, from full browser automation frameworks to lightweight HTML scrapers.
• CLI abstractions/frameworks
  Libraries for building command-line interfaces in Node.js, covering argument parsing, interactive prompts, and terminal colour output.
• Color manipulation
  Libraries for parsing, converting, and manipulating colour values in JavaScript.
• Parallelism (Worker Threads)
  Libraries for running parallel work using worker threads in JavaScript.
• Configuration and env loaders
  Libraries for loading and validating application configuration from environment variables and config files.
• Cookie abstractions
  Libraries for parsing, serializing, and managing HTTP cookies in JavaScript.
• Data structures, entities and value objects
  Libraries for defining data structures, entities, and value objects in JavaScript, including immutable data, enums, and typed models.
• Database and storage abstractions and ORMs
  Libraries for abstracting database access, including ORMs, query builders, and database-specific clients.
• PostgreSQL clients
  Client libraries for connecting to and querying PostgreSQL from Node.js.
• Object-relational mapping (ORM)
  Object-relational mapping (ORM) libraries for JavaScript and TypeScript.
• Query builders
  SQL query builder libraries for JavaScript and TypeScript.
• Redis clients
  Client libraries for connecting to and querying Redis from Node.js.
• SQLite clients
  Client libraries for working with SQLite databases in Node.js.
• DB drivers
  Low-level database driver libraries for connecting to and querying specific database engines from Node.js.
• Datetime libraries
  Libraries for parsing, formatting, and manipulating dates and times in JavaScript.
• Dependency injection + service locator (IoC)
  Libraries implementing dependency injection, service locator, and inversion of control patterns in JavaScript.
• Diffing (Text) libraries
  Libraries for computing and rendering differences between text content.
• DOM implementations and fakes
  Libraries that implement or fake the DOM outside a browser, for testing and server-side use.
• Email delivery
  Libraries for sending email from Node.js applications.
• Event emitters and pubsub
  Libraries implementing event emitter and publish/subscribe patterns in JavaScript.
• Feature detection and useragent/browser/runtime detection
  Libraries for detecting browser/runtime features, user agents, and execution environments in JavaScript.
• File archiving and compression
  Libraries for creating, reading, and compressing archive files such as zip, in JavaScript.
• File type / mimetype detection
  Libraries for detecting file types and MIME types from file content in JavaScript.
• Form and file upload processing
  Libraries for parsing multipart form data and handling file uploads in Node.js.
• Geospatial analysis
  Libraries for geospatial analysis and geometric calculations in JavaScript.
• Graphics
  Libraries for rendering 2D graphics in JavaScript.
• Cryptography and hashing
  Libraries for cryptographic operations and hashing in JavaScript.
• Hot module reloading
  Libraries that add hot module reloading to Node.js applications during development.
• HTTP and WebSocket clients
  HTTP and WebSocket client libraries for making network requests from JavaScript and Node.js.
• HTTP and WebSocket servers
  Libraries and tools for running HTTP and WebSocket servers in Node.js, including lightweight static file servers.
• Image generation and processing
  Libraries for generating, processing, and optimizing images in Node.js.
• Internationalization and localization
  Libraries for internationalization and localization of JavaScript applications.
• JSX implementations
  Alternative implementations of JSX outside the React ecosystem.
• JWT
  Libraries for creating, signing, and verifying JSON Web Tokens (JWT) in JavaScript.
• Logging
  Logging libraries and frameworks for Node.js applications.
• Machine learning
  Libraries for machine learning and numerical computation in JavaScript.
• Numbers, money and currency libraries
  Libraries for working with numbers, money, durations, and currency in JavaScript.
• Parsers and compilers
  Parsers and compilers for various data formats and languages, including spreadsheets, BSON, and expression parsing.
• PDF generation
  Libraries for generating and manipulating PDF documents in JavaScript.
• Queues
  Lightweight in-memory queue and priority queue data structure libraries for JavaScript.
• QR code generation
  Libraries for generating QR codes in JavaScript.
• Random, UUID, passwords, hashes and secrets generation
  Libraries for generating random values, UUIDs, passwords, hashes, and other secrets in JavaScript.
• Reactive programming libraries
  Libraries implementing reactive programming patterns and observables in JavaScript.
• Schedulers (In-Process)
  Libraries for scheduling recurring in-process tasks using cron-like syntax in Node.js.
• Screen capture
  Libraries for capturing screenshots from Node.js.
• Security - input sanitization, etc.
  Libraries for sanitizing untrusted input and mitigating security vulnerabilities such as XSS in JavaScript.
• Server-sent events
  Libraries for implementing server-sent events (SSE) in Node.js.
• Shell scripting / shell execution
  Libraries for scripting shell commands and executing child processes from JavaScript.
• SSH abstractions and implementations
  Libraries for implementing and abstracting SSH clients in Node.js.
• Syntax parsing and highlighting
  Libraries for parsing and syntax-highlighting code in JavaScript.
• Task/job queues
  Libraries for running background task and job queues in Node.js, typically backed by Redis or a database.
• Validation and assertions
  General-purpose libraries for validating values and making assertions in JavaScript.
• Object / schema validation
  Libraries for validating and parsing object shapes and schemas in JavaScript.
• JSON schema validation
  Libraries for validating data against JSON Schema in JavaScript.
• Visual diff and regression testing
  Libraries for visual diffing and regression testing, such as comparing rendered output between versions.
• Middleware systems
  Libraries for composing middleware pipelines in Node.js applications.