Kenta Moriuchi

internet-drafts. Internet drafts for MoLE

otari. Open-source, OpenAI-compatible LLM gateway you run yourself. One endpoint for 40+ providers, with virtual keys, budgets, and usage tracking.

agentic-inbox. A self-hosted email client with an AI agent, running entirely on Cloudflare Workers

laufey. Modern web native application framework

tc39-llm-wiki. Python

pact. Design and implementation of PACT

reskia. CMake-based Google Skia build with C ABI bindings for use from other languages.

nav262. An IDE to navigate the JavaScript specification.

MADO-queue. 窓口番号発券システム / Queue-ticket system for small Japanese municipalities. 芽室町で本番稼働中。

modern-web-guidance.

ai-content-disclosure. W3C AI Content Disclosure Community Group repository for drafts, issues, meeting minutes, and related materials.

webengineshackfest. Web Engines Hackfest

headroom. Compress tool outputs, logs, files, and RAG chunks before they reach the LLM. 60-95% fewer tokens, same answers. Library, proxy, MCP server.

interop-jpegxl. Interop 2026 JPEG XL Investigation

jz. JS compiler

rigor. Inference-first static analysis for Ruby

nordstjernen. Nordstjernen web browser

Rusopus. Rusopus – A high-performance, memory-safe Rust implementation of the Opus Interactive Audio Codec. Focused on parity with libopus 1.5+ and optimized for modern cloud & edge infrastructure.

clawpatrol. Security firewall for agents

talc. A fast and flexible allocator for no_std and WebAssembly

psl. A native Rust library for Mozilla's Public Suffix List

tinyvec. Just, really the littlest Vec you could need. So smol.

glyphon. 🦅🦁 Fast, simple 2D text renderer for wgpu

deno_graph. The module graph logic for Deno CLI

webcodecs-polyfill. A polyfill for the WebCodecs API for use in server-side JavaScript environments such as Node, Deno, and Bun.

cozip. Cooperative CPU + GPU (WebGPU) compression library for Rust.

rtk. CLI proxy that reduces LLM token consumption by 60-90% on common dev commands. Single Rust binary, zero dependencies

web-audio-api. The Web Audio API v1.0, developed by the W3C Audio WG

ptcollab. A collaborative piano-roll music sequencer!

RaTeX. >99.5% KaTeX syntax coverage. LaTeX math renderer in pure Rust. No JavaScript, no WebView, no DOM. One Rust core → iOS, Android, Flutter, Web, PNG. C ABI · WASM · Server-side PNG/SVG.

no-std-io2. std::io for no_std

StS2-Launcher. An unofficial Android launcher for Slay the Spire 2. Alpha builds can be found on the Cinderbox Discord server.

web-haptics. Web Haptics API

css-modules-kit. A toolkit for making CSS Modules useful.

spinel. C

gitlaw-jp. Japanese legislation as a Git repo.

corsa-bind. The Corsa (tsgo) bindings (FFI & Orchestration) for Rust and JS/TS, etc...

ripple. the elegant TypeScript UI framework

docs. Deno documentation, examples and API Reference. Powered by Lume.

funstack-static. A React framework without a server

jsir. Next-generation JavaScript analysis tooling

OneCompression. Python package for LLM compression

pretext. Fast, accurate & comprehensive text measurement & layout

JSONC. HTML

accesskit. Accessibility infrastructure for UI toolkits

deno_sdl2. SDL2 module for Deno

zmij. Fast floating point to string conversion

sptth. reverse https proxy (https <-> sptth) for local development

vinext. Vite plugin that reimplements the Next.js API surface — deploy anywhere

tiptap. The headless rich text editor framework for web artisans.

open-japan-politech-platform. 政党・企業によらない政治のデジタル化オープンソース基盤

flint. [Experimental] A fast, friendly linter for JavaScript, TypeScript, and more. ❤️‍🔥

vouch. A community trust management system based on explicit vouches to participate.

langextract. A Python library for extracting structured information from unstructured text using LLMs with precise source grounding and interactive visualization.

js-primitive-builtins. Additional JS primitive builtins

wado. The Wado Programming Language

Rust_DN_SuperBook_PDF_Converter. DN_SuperBook_PDF_Converter - スキャン書籍 PDF をデジタル書籍並みに大変クリアに読みやすくする AI PDF 高品質化・各種調整ツール

proposal-error-frames-above. ECMAScript Proposal: Error option `framesAbove`

apg-patterns-examples. Accessible UI component implementations across React, Astro, Svelte, Vue, and Astro following WAI-ARIA APG patterns

proposal-error-limit-option. ECMAScript Proposal: Error option `limit`

ssgoi. animated page transition for major ssr frameworks and browsers, including Safari

proposal-typedarray-findwithin. A proposal for searching for a subsequence within a TypedArray

webidl-conversions. Implements the Web IDL algorithms for converting to and from JavaScript values

mquickjs. Public repository of the Micro QuickJS Javascript Engine

Xmas.JS. Xmas.JS is a lightweight, high-performance JavaScript/TypeScript runtime

process_pool.mbt. MoonBit

core. MoonBit's Core library

check-if-email-exists. Check if an email address exists without sending any email, written in Rust. Comes with a ⚙️ HTTP backend.

developer-signals. Tracking web developer signals for features

eslint-plugin-baseline-js. ✅ ESLint plugin to enforce the JavaScript Baseline.

test262. Official ECMAScript Conformance Test Suite

digital-agency-icons. TypeScript

brimstone. New JavaScript engine written in Rust

python. JavaScript

promptfoo. Test your prompts, agents, and RAGs. Red teaming/pentesting/vulnerability scanning for AI. Compare performance of GPT, Claude, Gemini, DeepSeek, and more. Simple declarative configs with command line and CI/CD integration. Used by OpenAI and Anthropic.

swift-otel. An OpenTelemetry Protocol (OTLP) backend for Swift Log, Swift Metrics, and Swift Distributed Tracing.

yue. A library for creating native cross-platform GUI apps

cssvalue. CSS value parser / serializer

homebrew-wine. Ruby

docling. Get your documents ready for gen AI

andromeda. JS runtime lolz

form-guide. オープンソースのフォーム実装ガイド

use-chat-submit. React hook to handle chat textarea submit behaviors (Enter vs Mod+Enter) with IME-safe handling.

cookiestore. Asynchronous access to cookies from JavaScript

runtime. JSAR: browser engine library designed for the Spatial Web. You can use it to mix-render different modern Web 2D and 3D contents together.

tauri-specta. Completely typesafe Tauri commands

specta. Easily export your Rust types to other languages

html-in-canvas.

ink. 🌈 React for interactive command-line apps

proposal-module-global. TC-39 proposal for new global objects within a shared realm

deno. A modern runtime for JavaScript and TypeScript.

tsgolint. ✨ Experimental proof-of-concept typescript-go powered JS/TS linter written in Go

website. WebAssembly website

difit. A lightweight command-line tool that spins up a local web server to display Git commit diffs in a GitHub-like Files changed view

DeviceModel. This provides API to get the model ID and name of devices (Mac, iPhone, and iPad).

fidx. Function Index

proposal-import-bytes. A modest proposal for importing bytes in javascript

hayro. A PDF interpreter and renderer in pure Rust.

temporal-polyfill-lite. Lightweight Temporal polyfill

similarity. Rust

proposal-random-collection-functions. Proposal for a set of new random functions for interacting with "collections" (Arrays, etc)

gemini-cli. An open-source AI agent that brings the power of Gemini directly into your terminal.

bundled-responses. Makefile

power-assert-monorepo. Power Assert in JavaScript - Provides descriptive assertion messages through standard assert interface. No API is the best API.

web-audio-api-rs. A Rust implementation of the Web Audio API, for use in non-browser contexts

node-web-audio-api. Web Audio API implementation for Node.js

liquid-glass-effect-macos. Demo here

esbuild_client. A Rust implementation of a client for communicating with esbuild's service API over stdio

mines-esolang. A Minesweeper-driven esolang.

typescript-go-rs. Staging repo for development of native port of TypeScript

libsyncrpc. synchronous RPC communication with callbacks for Node.js

proposal-random-functions. Proposal to add a Random namespace and several additional convenience functions for using randomness.

dotlottie-web. Official LottieFiles player for rendering Lottie and dotLottie animations in the web. Supports React, Vue, Svelte, SolidJS and Web Components.

firefox. The official repository of Mozilla's Firefox web browser.

approve-pr-action. GitHub Action to approve pull requests securely

observable-polyfill. A polyfill for the WICG Observable

faiss. A library for efficient similarity search and clustering of dense vectors.

taffy. A high performance rust-powered UI layout library

yoga. Yoga is an embeddable layout engine targeting web standards.

dify. Production-ready platform for agentic workflow development.

bigquery-utils. Useful scripts, udfs, views, and other utilities for migration and data warehouse operations in BigQuery.

stylelint-plugin-use-baseline. A Stylelint plugin that enforces Baseline CSS features.

sentry-tauri. A Tauri plugin for Sentry

proposal-composites. TypeScript

node_test_viewer. The viewer of daily node test result

docs. Docs is an open-source text editor: web-native, made for real-time collaboration, cleanly structured documents and sub-documents with full ownership of your data. Built to scale with Django and React.

export-docker-dotenv. Shell functions to export Docker-syntax .env files

panic. JavaScript

wesl-spec. A portable and modular superset of WGSL

morse-css. Morse CSS is a classless CSS framework with high customizability.

typed-japanese. 🌸 Learn Japanese grammar with TypeScript

react-alien-signals. Alien React Signals is a TypeScript library that provides state management APIs built on top of Alien Signals.

alien-signals. 👾 The lightest signal library

libm. A port of MUSL's libm to Rust.

patch.aul. AviUtlのバグを直す/高速化する/機能追加

gritql. GritQL is a query language for searching, linting, and modifying code.

create-vite-extra. Extra Vite templates

NearDrop. An unofficial Google Nearby Share/Quick Share app for macOS

Temml. TeX-to-MathML conversion library in JavaScript

temporal-polyfill. A lightweight polyfill for Temporal, successor to the JavaScript Date object

typescript-go. Staging repo for development of native port of TypeScript

LightGBM. A fast, distributed, high performance gradient boosting (GBT, GBDT, GBRT, GBM or MART) framework based on decision tree algorithms, used for ranking, classification and many other machine learning tasks.

dockerfiles. Dockerfiles of things

happy-css-modules. Typed, definition jumpable CSS Modules. Moreover, easy!

proposal-minimum-common-api. Bikeshed

node-modules-inspector. Interactive UI for local node modules inspection

MathJax. Beautiful and accessible math in all browsers

mathml-docs. Notes and other documents by the Math WG. See also https://github.com/w3c/mathml-core (repo for the MathML Core spec) and https://github.com/w3c/mathml (repo for the MathML 4 spec).

PEPC. Explainer for the PEPC feature

cursed_types. List of Trusted Types bypasses

css-animations. 自分用のCSSアニメーションの遊び場

browser-specs. A machine-readable list of Web specifications

proposal-math-clamp. A TC39 proposal to add Math.clamp

aws-lc-rs. aws-lc-rs is a cryptographic library using AWS-LC for its cryptographic operations. The library strives to be API-compatible with the popular Rust library named ring.

motion. A modern animation library for React and JavaScript

ui. A CSS UI library exploring how next-gen HTML & CSS features can change the way we create components. Designed to be used by professional teams as well as tinkering hobbyists.

oxvg. Fastest SVG toolchain for optimisation, minification, linting, and actions. Usable via CLI, Node, Wasm, or Rust.

illustrator-webgpu-plugin. WebGPU LiveEffects for Adobe Illustrator powered by Deno

tini. A tiny but valid `init` for containers

deno-lint-plugin-extra-rules. A `deno lint` plugin for Deno's built-in features and std

baseline-status. A Web Component widget displaying Baseline status of a web feature

web-features. Exploring how to present Web platform features adoptability

webgpu-examples. TypeScript

frontend-config. TypeScript

.editorconfig.

dsbuild. ⬡ Deno to browser in seconds!

upx. UPX - the Ultimate Packer for eXecutables

wyw-in-js. TypeScript

virtua. A zero-config, fast and small (~3kB) virtual list (and grid) component for React, Vue, Solid and Svelte.

react-awesome-table. TypeScript

teable. ✨ The Next Gen Airtable Alternative: No-Code Postgres

rustowl. Visualize Ownership and Lifetimes in Rust

react-scan. Scan and fix React performance issues

jawsm. JavaScript to WASM compiler

proposal-stabilize. Proposal for tc39 of new integrity "level" protecting against both override mistakes and proxy reentrancy

standard-schema. A standard interface for TypeScript schema validation libraries

shared-storage. Explainer for proposed web platform Shared Storage API

woothee-js. Woothee javascript(and node.js) implementation

v8_with_lto.

rustlantis. UB-free and deterministic rustc fuzzer

vrm-specification. vrm specification

one. ❶ One is a new React framework - target web and native with a single Vite plugin and fully shared code, so you can ship cross-platform nearly as easy as single-platform.

slang. Making it easier to work with shaders

mime-db. Media Type Database

eslint-plugin-eslint-plugin. An ESLint plugin for linting ESLint plugins

typescript-graph. A CLI to visualize the dependencies between files in the TypeScript codebase.

regex. JS regexes ➕ future. A template tag for readable, high-performance, native JS regexes with extended syntax, context-aware interpolation, and always-on best practices.

vsr. a feature-rich, npm-compatible package registry

vltpkg. the vlt package manager monorepo

quickjs. QuickJS, the Next Generation: a mighty JavaScript engine

tsimports. ✨️ A fast and opinionated imports organizer for ECMAScript and TypeScript.

workers-nodejs-compat-matrix. https://workers-nodejs-compat-matrix.pages.dev

proposal-functions-api. Discussing standardizing serverless JS functions

renovate-config. Shareable configuration for Renovate within Deno project

deno-vite-plugin. Vite plugin to enable Deno resolution inside vite.

denoify. 🦕For NPM module authors that would like to support Deno but do not want to write and maintain a port.

proposal-shadowrealm. ECMAScript Proposal, specs, and reference implementation for Realms

eslint-disable-inserter. Inserts eslint-ignore comments automatically

notes. TC39 meeting notes

ecma262. Status, process, and documents for ECMA-262