Daniel Meyer

rxdb-solid. An RxDB replication plugin that syncs an RxDB collection to/from a Solid pod — JSON-default storage with an optional toRdf/fromRdf Linked-Data seam, checkpoint-based incremental pull, tombstone soft-deletes, conflict resolution delegated to RxDB, a fail-closed scope guard + key sanitisation, injectable authed fetch.

awesome-local-first. Useful Links for Everything related to LocalFirst

google-drive-mock. Mock-Server that simulates being google-drive. Used for testing.

offline-journal. Private journal with offline-sync capabilities

docker-android. 🤖 A minimal and customizable Docker image running the Android emulator as a service.

marketingskills. Marketing skills for Claude Code and AI agents. CRO, copywriting, SEO, analytics, and growth engineering.

pretext. Fast, accurate & comprehensive text measurement & layout

oboku. Your personal reading cloud library

gradient. A no-nonsense grade tracker for students. Enter scores, track progress, and see exactly where you stand in every class.

rxdb-chat. A local-first discussion board using RxDB.

chroma. Search infrastructure for AI

tilth. Smart(er) code reading for humans and AI agents. Reduces cost per correct answer by ~40% on average. Install: cargo install tilth -or- npx tilth

CareLink. A WDS Spark hackathon project built to use open-source AI and a self-hosted database to modernize the healthcare referral system of rural Canada.

node-red-contrib-rxdb. A noder-red wrapper for rxdb

zakapp. the zakat app you've been looking for ...

vibe_figma. Figma to React Converter

durable-streams. The data primitive for the agent loop.

mquickjs. Public repository of the Micro QuickJS Javascript Engine

stfu. stfu

open-webui. User-friendly AI Interface (Supports Ollama, OpenAI API, ...)

TimeCapsuleLLM. A LLM trained only on data from certain time periods to reduce modern bias

regonaut. 100% ES2025-compatible ECMAScript RegExp engine implemented in Go

flex-grid. Demo NextJS PWA

tubetape. 🎵 Extract, sample, and loop audio from YouTube videos with DAW-level precision

docusaurus-plugin-llms. Docusaurus plugin for generating LLM-friendly documentation following the llmstxt.org standard

dm-toolbox. The ultimate local-first desktop companion for Dungeon Masters. Manage campaigns, track combat initiative, plan sessions, and organize NPCs effortlessly.

absurder-sql. absurder-sql which absurdly utilizes a custom SQLite VFS backend to treat IndexedDB like a disc and store data blocks.

pocketbase. Open Source realtime backend in 1 file

rxdb-mongodb-sync-example. Example Repo that runs the RxDB-MongoDB Replication https://rxdb.info/replication-mongodb.html

svgomg. Web GUI for SVGO

svgo. ⚙️ Node.js tool for optimizing SVG files

WebMCP. Early WebMCP proposal / implementation - since evolved and worked on by much more capable folks that develop the web: https://github.com/webmachinelearning/webmcp

POS-offline. This is offline pos app build with MERN

jsonschema-key-compression. Compress json-data based on its json-schema while still having valid json

modelence. Modelence is a full-stack framework for building production web apps with a built-in database, authentication and monitoring. Modelence is opinionated and AI agent-first, which means it's optimized for AI code generation with built-in guardrails.

lucide. Beautiful & consistent icon toolkit made by the community. Open-source project and a fork of Feather Icons.

web-llm. High-performance In-browser LLM Inference Engine

rxdb1. JavaScript

node-red-contrib-rxdb. JavaScript

graft. Graft is an open-source transactional storage engine optimized for lazy, partial, and strongly consistent replication—perfect for edge, offline-first, and distributed applications.

openagents. The Agent Network

mongo-sync. TypeScript

lynx. Empower the Web community and invite more to build across platforms.

primjs. JavaScript Engine Optimized for Lynx

chirp. Send data with sound

task-checklist-app. A standalone React + TypeScript application that allows users to create tasks with individual checklists, featuring offline data persistence and image marker tagging.

fickle-cal. A local first, barebones, calendar-centric todo app. Keep your data, run offline & multi-device sync

CnC_Generals_Zero_Hour. Command and Conquer: Generals - Zero Hour

nats-server. High-Performance server for NATS.io, the cloud and edge native messaging system.

ZeroSync. A STARK proof to sync a Bitcoin full node in an instant.

Browsy. Poor man's OpenAI Operator?

DeepSeek-R1.

json-schema. JSON Schema Validation, Annotation, and Bundling. Supports Draft 04, 06, 07, 2019-09, 2020-12, OpenAPI 3.0, and OpenAPI 3.1

vscode-in-docker. Run VSCode inside of a Docker Container

crawl4ai. 🚀🤖 Crawl4AI: Open-source LLM Friendly Web Crawler & Scraper. Don't be shy, join here: https://discord.gg/jP8KfhDhyN

org. TypeScript

Todoist. TypeScript

mcq-quiz. TypeScript

pushup-tracker. A local-first peer-to-peer pushup tracking application built with Nuxt 3 and RxDB

json-schema-spec. The JSON Schema specification

eventsource. EventSource client for Node.js, browsers and other JavaScript runtimes

jsonbinpack. A binary JSON serialization format based on JSON Schema 2020-12 with a strong focus on space-efficiency

iroh. IP addresses break, dial keys instead. A library that adds QUIC + NAT Traversal to your apps.

uix. The UIX Framework

marp. The entrance repository of Markdown presentation ecosystem

mongo-query-to-postgres-jsonb. Converts MongoDB queries to postgresql queries for jsonb fields.

rxdb-storage-pglite. Plugin for RxDB that allows you to use PgLite as a storage engine.

mercure. 🪽 An open, easy, fast, reliable and battery-efficient solution for real-time communications

RIDB. Rust + wasm database

openauth. ▦ Universal, standards-based auth provider.

custom-idle-queue. Optimize the performance of important tasks by delaying background-tasks

postgrest. REST API for any Postgres database

wa-sqlite. WebAssembly SQLite with experimental support for browser storage extensions

expo. An open-source framework for making universal native apps with React. Expo runs on Android, iOS, and the web.

electrobun. Build ultra fast, tiny, and cross-platform desktop apps with Typescript.

pe-sqlite-for-rxdb. SQLite adapter for RxDB

Zenith. Fully on-chain auto chess, built with Dojo

nova. JS engine lolz

watermark-anything. Official implementation of the paper "Watermark Anything with Localized Messages"

local-first-nuxt-todomvc. Local-first P2P todomvc app with Nuxt 3

porffor. An ahead-of-time JavaScript compiler

jawsm. JavaScript to WASM compiler

simdjson. Parsing gigabytes of JSON per second : used by Facebook/Meta Velox, the Node.js runtime, ClickHouse, WatermelonDB, Apache Doris, Milvus, StarRocks

classic-jazz. A new kind of database that's distributed across your frontend, containers, serverless functions and its own storage cloud.

rxdb-bug-indexeddb-safari. RxDB demo that shows indexeddb bug on Safari.

op-sqlite. Fastest SQLite library for react-native by @ospfranco

Pongo. Pongo - Mongo but on Postgres and with strong consistency benefits

tinkerbird. Client Side Vector Database

javascript-vector-database. Local-First Vector Database with RxDB and transformers.js

kolibri. The accessible HTML-Standard

dawarich. Your favorite self-hostable alternative to Google Timeline (Google Location History)

courseweb. 🏫 National Tsing Hua University Course Selection for students by students

vector5db. Client-side vector database implementation in TypeScript

lancedb. Developer-friendly OSS embedded retrieval library for multimodal AI. Search More; Manage Less.

transformers.js. State-of-the-art Machine Learning for the web. Run 🤗 Transformers directly in your browser, with no need for a server!

vectra. Vectra is a local vector database for Node.js with features similar to pinecone but built using local files.

oasysdb. In-memory vector store with efficient read and write performance for semantic caching and retrieval system. Redis for Semantic Caching.

lsh-js. Locality-Sensitive Hashing implementation in node.js for fast and scalable approximate nearest neighbors search

embeddings.js. Simple text embeddings library for Node.js (OpenAI, Mistral, Local)

vectordb.js. Simple in-memory vector database for text similarity in Node.js

quickjs. Public repository of the QuickJS Javascript Engine.

spec. The canonical spec for ulid

json-schema-to-zod. TypeScript

flexsearch. Next-generation full-text search library for Browser and Node.js

peerfetch. Peer-to-peer HTTP over WebRTC.

remotestorage.js. ⬡ JavaScript client library for integrating remoteStorage in apps

mememo. A JavaScript library that brings vector search and RAG to your browser!

RxDBDotNet. RxDBDotNet is a .NET library that implements the RxDB replication protocol, enabling real-time data synchronization between RxDB clients and .NET servers using GraphQL and Hot Chocolate. It extends the standard RxDB replication protocol with .NET-specific enhancements.

webgpu-samples. WebGPU Samples

blazingsql. BlazingSQL is a lightweight, GPU accelerated, SQL engine for Python. Built on RAPIDS cuDF.

storage-buckets. API proposal for managing multiple storage buckets

local-peer-to-peer. ↔️ Proposal for local communication between browsers without the aid of a server.

em. A beautiful, minimalistic note-taking app for personal sensemaking.

intercooler-js. Making AJAX as easy as anchor tags

payload. Payload is the open-source, fullstack Next.js framework, giving you instant backend superpowers. Get a full TypeScript backend and admin panel instantly. Use Payload as a headless CMS or for building powerful applications.

signalstory. Signal-based state management for Angular applications

binary-decision-diagram. A library to create, minimize and optimize binary decision diagrams https://github.com/pubkey/binary-decision-diagram

sqlsync. SQLSync is a collaborative offline-first wrapper around SQLite. It is designed to synchronize web application state between users, devices, and the edge.

MarkUp. A simple local-first notes app build on React+Typescript with Markdown support

todone. Offline first markdown Todo list. Get from ToDo — to Done

rust-bfield. B-field implementation in Rust

IxJS. The Interactive Extensions for JavaScript

thorium. Chromium fork named after radioactive element No. 90. Source code and Linux releases. Windows/MacOS/ARM builds served in different repos, links are towards the top of the README.md.

Bend. A massively parallel, high-level programming language

partytown. Relocate resource intensive third-party scripts off of the main thread and into a web worker. 🎉

kv. A fast, lightweight, powerful and cross-platform key-value database for Node.js, Deno, and Bun.

venture-capitol. Optimizing the founding process for startups in Germany

noble-curves. Audited & minimal JS implementation of elliptic curve cryptography.

weron. Overlay networks based on WebRTC.

reactjrx. Query + State + Binding for RxJS

eventsource-client. A modern, streaming server-sent events/eventsource client

libsql. libSQL is a fork of SQLite that is both Open Source, and Open Contributions.

sqlite-wasm. SQLite Wasm conveniently wrapped as an ES Module.

wa-sqlite. WebAssembly SQLite with support for browser storage extensions

react-native-worklets-core. 🧵 A library to run JS functions ("Worklets") on separate Threads

react-geiger. Audiolize React performance

crank. The Just JavaScript UI Framework

number-to-letter. Simple utility to convert an arbitrary number to a letter

Ahau. Vue

observable-hooks. ⚛️☯️💪 React hooks for RxJS Observables. Concurrent mode safe.

dht_indexer. JavaScript

cr-sqlite. Convergent, Replicated SQLite. Multi-writer and CRDT support for SQLite

duckdb-wasm. WebAssembly version of DuckDB

llrt. LLRT (Low Latency Runtime) is an experimental, lightweight JavaScript runtime designed to address the growing demand for fast and efficient Serverless applications.

FerretDB. A truly Open Source MongoDB alternative

sqlite-replication. Typescript module to replicate SQLite DB with server

Mindustry. The automation tower defense RTS

rxdb-orion. RxDB - Replication with Laravel Orion

alternative-internet. A collection of interesting new networks and tech aiming at decentralisation (in some form).

sparrow-app. Your next-gen API testing and development tool.

htmx. </> htmx - high power tools for HTML

PoloDB. PoloDB is an embedded document database.

ui. A set of beautifully-designed, accessible components and a code distribution platform. Works with your favorite frameworks. Open Source. Open Code.

lowstorage. 💾 Simple, fast, object pseudo-database for S3-compatible storages using JSON or Msgpack

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

JSON-Schema-Test-Suite. A language agnostic test suite for the JSON Schema specifications

docusaurus-lunr-search. Local / Offline Search for docusaurus

pluto-encrypted. Contains an Atala Prism Wallet SDK Pluto implementation with several db engines supported.

cudf. cuDF - GPU DataFrame Library

heavydb. HeavyDB (formerly MapD/OmniSciDB)

expo-cli. Tools for creating, running, and deploying universal Expo and React Native apps

uWebSockets.js. μWebSockets for Node.js back-ends :metal:

wave-share. Serverless, peer-to-peer, local file sharing through sound

werift-webrtc. WebRTC Implementation for TypeScript (Node.js), includes ICE/DTLS/SCTP/RTP/SRTP/WEBM/MP4

jc. CLI tool and python library that converts the output of popular command-line tools, file-types, and common strings to JSON, YAML, or Dictionaries. This allows piping of output to tools like jq and simplifying automation scripts.

YouTubeAIExtension. Chat with ANY of your favorite YouTube Videos!

great.db. ⚡ A powerful, human-friendly database library for JavaScript using SQLite.

BlenderProc. A procedural Blender pipeline for photorealistic training image generation

rxdb-quickstart. Local-First peer-to-peer replicated todo list with RxDB and WebRTC - https://pubkey.github.io/rxdb-quickstart/

github-fork-ribbon-css. A CSS-only, resolution-independent "Fork me on GitHub" ribbon.

todomvc-app-css. CSS for TodoMVC apps

lovefield. Lovefield is a relational database for web apps. Written in JavaScript, works cross-browser. Provides SQL-like APIs that are fast, safe, and easy to use.

ws. Simple to use, blazing fast and thoroughly tested WebSocket client and server for Node.js

hyper-sdk. Make your own hyper apps!

SylvieJS. javascript embeddable / in-memory database

webrtc-without-signaling-server. webrtc without signaling server. a stun server is still used if connecting over the internet.

docusaurus. Easy to maintain open source documentation websites.

blinkdb. 🗃️ An in-memory JS database optimized for large scale storage on the frontend.

offline-first. Sample offline first using Nx monorepo, React, RxDb, NestJs, Prisma, GraphQl, PostgreSql

react-native-mmkv. ⚡️ The fastest key/value storage for React Native. ~30x faster than AsyncStorage!

rxdb-graphql-prisma-sample. TypeScript

RxMoDb. Motoko

ts2esm. Transforms CommonJS projects into ESM.

dxos. TypeScript implementation of the DXOS protocols, SDK, toolchain and Composer.

article-efficiently-merging-arrays-in-javascript. Repository associated with the efficiently merging arrays via JavaScript article.

ohash. # Simple object hashing, serialization and comparison utils.

json-schema-to-ts. Infer TS types from JSON schemas 📝

bun. Incredibly fast JavaScript runtime, bundler, test runner, and package manager – all in one

CareerBot. Discord bot that scrapes Indeed.com job postings based on user queries. Allows user to store postings in database for future use.

tuple-database. TypeScript

backstage-test. The Backstage demo deployment

RedditVideoMakerBot. Create Reddit Videos with just✨ one command ✨

rxdb-flexsearch. RxDB Plugin based on FlexSearch implementation

quicklist-rxdb. TypeScript

evanotebook. EvaNotebook - A P2P Browser-Based Computational Notebook for Real Systems with IA.

dwrtc. Distributed WebRTC Signalling

webrtc-signaling-mesh. Decentralized signaling for WebRTC

syncpack. Consistent dependency versions in large JavaScript Monorepos.

fastfilter. fastfilter: Binary fuse & xor filters for Zig (faster and smaller than bloom filters)

webrtc. Async-friendly WebRTC implementation in Rust