JavaScript Libraries and Tools Page 4 of 17

ReScript is a robustly typed language that compiles to efficient and human-readable JavaScript. It comes with a lightning fast compiler toolchain that scales to any codebase size.

Local-first MCP server that gives coding agents structured context packets, code/schema facts, and diagnostics - backed by a local SQLite store.

TypeUI is an open-source CLI and registry of design skill files for AI coding agents such as Claude Code, Cursor, Codex, and Gemini CLI.

Grow a beautiful forest in your terminal with Claude Code!.

Your AI agent is smart but it doesn't know anything about your life. GBrain fixes that. Meetings, emails, tweets, calendar events, voice calls, original ideas... all of it flows into a searchable knowledge base that your agent reads before every response and writes to after...

Open-source, agent-agnostic CLI that gives AI coding agents eyes. Your agent builds a feature — ProofShot records video proof it works.

A simple CLI for orchestrating Claude Code, Codex, and OpenCode.

Zvec is an open-source, in-process vector database — lightweight, lightning-fast, and designed to embed directly into applications. Built on Proxima (Alibaba's battle-tested vector search engine), it delivers production-grade, low-latency, scalable similarity search with...

A TypeScript/JavaScript wrapper for the Steamworks SDK using Koffi FFI, designed for Node.js and Electron applications with Steamworks SDK integration.

Squiggle is a minimalist programming language for probabilistic estimation. It's meant for intuitively-driven quantitative estimation instead of data analysis or data-driven statistical techniques.

Free open-source JavaScript library for easily drawing HTML5 graphics and animation. It is lightweight and more powerful in terms of out-of-the-box features than the existing SVG/VML based components including Raphaël and Bonsai.

ZeroNet authentication provider.

Our mission at PlaceKit is to become the go-to geocoding solution for developers. Existing solutions feel opaque as they're split across many indiscernible APIs, confusing pricing, and locking developers into their ecosystem.

Tadpole is a DSL designed specifically for browser automation and data extraction. It is built on top of KDL. It is designed to be modular and concise.

KaTeX is a fast, easy-to-use JavaScript library for TeX math rendering on the web.

The Windows App Development CLI, is a single command-line interface for managing Windows SDKs, packaging, generating app identity, manifests, certificates, and using build tools with any app framework.

Mastra is a framework for building AI-powered applications and agents with a modern TypeScript stack.

ZeroBlog - For a distributed, self publishing blogging platform ( and centralized authentication ).

Payload is a CMS designed for developers from the ground up to deliver them what they need to build great digital products. If you know JavaScript, you know Payload. It's a code-first CMS, which allows you to build whatever you want in JavaScript or TypeScript - reducing...

Comprehensive solutions for displaying, securing, and tracking your PDFs, with the option to transform them into powerful lead magnets.

A Higher Order Component using react-redux to keep form state in a Redux store.

MUI X Charts is a library of production-ready components for rendering charts with React. It uses D3.js for data manipulation and SVGs for rendering.

Rollbar collects errors that happen in your application, notifies you, and analyzes them so you can debug and fix them. JavaScript, Ruby, Python, PHP, Node.js, Android, Flash, .NET, and Java libraries are available.

Free, ad-free, open-source, and sleek Muslim Prayer Times app. Available online. Uses a location-finding service for selecting places. Otherwise, it works without internet.

OpenRPA automates repetitive tasks performed by humans to cut costs, eliminate keying errors, speed up processes, and easily link applications together. These tasks can be converted into a business process and then automated.