Issue #647  (React, Git/CLI, Uncats)12/11/25

JavaScript Utilities

GSAP — The popular JavaScript animations library, in case you missed it, is now open source, allowing you to animate anything in the DOM with smooth performance.

BIDC — A bidirectional channel library for asynchronous communication support across JavaScript contexts, enabling seamless communication between different JavaScript execution contexts (workers, iframes, service workers).

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Ansis — An ANSI color library for use in terminals, CI environments, and Chromium-based browsers that's focused on small size and speed while providing rich functionality and handling edge cases.

Icebird — A library for reading Apache Iceberg tables in JavaScript, for reading the underlying Parquet files, built on top of another JS utility used for parsing Apache Parquet files.

Superstate — A type-safe JavaScript statecharts library featuring end-to-end type-safety, easy to read without seeing the visualizations, highly composable, and lightweight.

Of Coerce! — A lightweight, near-zero overhead alternative to schema validation libraries like Zod and Valibot, focused on a single task: ensuring the data corresponds to the types.

Travels — A fast, framework-agnostic undo/redo library that stores only changes, not full snapshots, useful for text editors, drawing apps, form builders, and other interactive apps.

modern-tar — A zero-dependency, cross-platform, streaming tar archive library for every JavaScript runtime, built with the browser-native Web Streams API for performance and memory efficiency.

AI Tools, LLMs, etc.

LangGraph.js — A low-level orchestration framework for building controllable agents that offers customizable architectures, long-term memory, and human-in-the-loop to reliably handle complex tasks.

Beads — A lightweight memory system for coding agents that uses a graph-based issue tracker, chaining your issues together like beads, making them easy for agents to follow for long distances, and reliably perform complex task streams in the right order.

ViewerKit — A robust VS Code extension toolkit crafted to enable developers to build extensions for VS Code, Cursor, Windsurf, Trae, Kiro and other VS Code-based editors, transforming AI IDEs into versatile AI agents beyond coding.

SwiftMCP — A Swift implementation of MCP for JSON-RPC over various transports, with multiple transport options, built-in authorization, optional OAuth, and more.

Claude Code Router — A tool that lets you use Claude Code as the foundation for coding infrastructure, allowing you to decide how to interact with the model while enjoying updates from Anthropic.

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cc-switch — A cross-platform, all-in-one desktop assistant tool for Claude Code, Codex, and Gemini CLI, with one-click provider management, endpoint latency testing, i18n support, and lots more.

Layrr — A Framer-style, framework-agnostic, visual editing tool for your actual codebase, enabling you to drag and resize components, convert Figma to code, edit text in-browser, or design with AI, while working with real files in your repo.

Qwen Code — A command-line AI workflow tool adapted from Gemini CLI, specifically optimized for Qwen3-Coder models that enhances your workflow with advanced code understanding, automated tasks, and intelligent assistance.

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JSON Tools & Databases

hl — A high-performance log viewer and processor that transforms logs in JSON and logfmt formats into a human-readable output and enables quick parsing and analysis of large log files with minimal overhead.

LabPlot — A native, cross-platform data visualization and analysis app that enables high-quality visualizations and interactive plotting with a few clicks along with effortless data extraction and import.

AI Dataset Generator — An npm package to generate realistic datasets for demos, learning, and dashboards, providing instant previews of data, export as CSV or SQL, and ability to explore with parent tool Metabase.

DataQueue — A lightweight, PostgreSQL-backed job queue for Node.js/TypeScript projects that allows you to utilize your existing PostgreSQL database to process background jobs with no need for additional services.

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SQLite JS — An extension that brings JavaScript capabilities to SQLite, to create custom SQLite functions, window functions, and collation sequences using JavaScript, allowing for flexible and powerful data manipulation directly within your SQLite database.

StarbaseDB — An HTTP SQLite scale-to-zero database on the edge built on Cloudflare Durable Objects (and recently acquired by Cloudflare).

Orange ORM — An Object Relational Mapper for Node.js, Bun, and Deno, offering seamless integration with popular databases and support for TypeScript and JavaScript, including CommonJS and ECMAScript.

@graphile/depth-limit — A highly capable depth limiting GraphQL.js validation rule to help protect your server from malicious operations.

Commercial Apps & Classifieds