Performant TypeScript PNG encoder & decoder.

memlab is a framework that analyzes memory and finds memory leaks in JavaScript applications.

The `@elizaos/core` package provides a robust foundation for building AI agents with dynamic interaction capabilities. It enables agents to manage entities, memories, and context, and to interact with external systems, going beyond simple message response

A micro-library of stream components for building custom JSON and JSONC processing pipelines with a minimal memory footprint — parse, filter, and transform JSON far larger than available memory with a SAX-inspired token API, on Node.js or Web Streams.

Node.js atomic and non-atomic counters, rate limiting tools, protection from DoS and brute-force attacks at scale

Tiny but powerful full-text search engine for browser and Node

TypeScript port of HdrHistogram

Fast LRU and TTL cache with upsert and promise option

Redis Server for testing. The server will allow you to connect your favorite client library to the Redis Server and run parallel integration tests isolated from each other.

A performant, customizable React Native signature canvas with advanced error handling, WebView optimization, and TypeScript support for iOS, Android, and Expo

In-memory state adapter for Chat SDK — zero-dependency subscriptions, locks, and cache for local development and tests

Elysia's Radix Tree router for fast matching dynamic parameters

A WebGL memory tracker

In-memory abstract-level database for Node.js and browsers

Simple implmentation of Stream.Readable and Stream.Writable holding the data in memory.

convert JSON data to space efficient format

Privacy-first CAPTCHA widget, compliant with global regulations (GDPR/HIPAA/CCPA/LGDP/DPDPA/PIPL) and WCAG accessible. No tracking, self-verifying.

Advanced cross-platform operating system monitoring utilities with TypeScript support

The most efficient JS implementation calculating the Levenshtein distance, i.e. the difference between two strings.

Chain functions, generators, Node streams, and Web streams into a pipeline with backpressure support.