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A small utility for creating warnings and emitting them.

Check TypeScript type definitions

A small utility, used by Fastify itself, for generating consistent error objects across your codebas

Parse your json body at max speed and safely.

Internationalised error messages for Ajv JSON validator

Stringify your JSON at max speed

LRU and FIFO caches for Client or Server

JavaScript stylistic rules for ESLint, migrated from [eslint core](https://github.com/eslint/eslint)

Asynchronous bootstrapping of Node applications

Crazy fast http radix based router

$merge and $patch keywords for Ajv JSON-Schema validator to extend schemas

A test reporter for `node:test` that reports test file statuses.

JSON parse with prototype poisoning protection

Build and manage the AJV instances for the fastify framework

Really Fast Deep Clone

Fast HTTP benchmarking tool written in Node.js

Checkout multiple git branches, execute scripts and return to the origin branch.

JSON Schema fluent API

Fake HTTP injection library

Create HTTP error objects

Manipulate the HTTP Vary header

Determine the address of a proxied request

Infer typescript types from your JSON schemas!

Json Schema Type Builder with Static Type Resolution for TypeScript