Robin Blomberg

ponytail. Makes your AI agent think like the laziest senior dev in the room. The best code is the code you never wrote.

lefthook. Fast and powerful Git hooks manager for any type of projects.

neiro. Audio processing for TypeScript. Chainable, immutable, serverless-ready.

twlog. Beautiful browser console.log with Tailwind CSS.

DOMPurify. DOMPurify - a DOM-only, super-fast, uber-tolerant XSS sanitizer for HTML, MathML and SVG. DOMPurify works with a secure default, but offers a lot of configurability and hooks. Demo:

react-scan. Scan and fix React performance issues

typed-query-selector. Better typed `querySelector` and `querySelectorAll`.

jj. A Git-compatible VCS that is both simple and powerful

base-ui. Unstyled UI components for building accessible web apps and design systems. From the creators of Radix, Floating UI, and Material UI.

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

match-sorter. Simple, expected, and deterministic best-match sorting of an array in JavaScript

render-hooks. Inline render-block-stable React hooks

react-if. 🌗 Render React components conditionally

kmeans. K-Means clustering

pgvector-node. pgvector support for Node.js, Deno, and Bun (and TypeScript)

mimessage. iMessage Wrapped, Semantic Search, and AI Chats

nextjs-forum. The Next.js Discord server indexed in the web

openpm. TypeScript

parabol. Free online agile retrospective meeting tool

gnothi. Gnothi is an open-source AI journal and toolkit for self-discovery. If you're interested in getting involved, we'd love to hear from you.

sst-prisma. Serverless Stack + Prisma ORM Template

eventual. Build scalable and durable micro-services with APIs, Messaging and Workflows

opennextjs-aws. Open-source Next.js adapter for AWS

OpenPipe. Turn expensive prompts into cheap fine-tuned models

guide. Repo for guide.sst.dev

openapi-backend. Build, Validate, Route, Authenticate and Mock using OpenAPI

pantry-tracker. TypeScript

tickup. Supper clone Clickup 3.0, Follow Clean Architecture + DDD with latest Nextjs

skylar-email. TypeScript

autoflow. pingcap/autoflow is a Graph RAG based and conversational knowledge base tool built with TiDB Serverless Vector Storage. Demo: https://tidb.ai

QuackDB. Open-source in-browser DuckDB SQL editor

langfuse. 🪢 Open source AI engineering platform: LLM evals, observability, metrics, prompt management, playground, datasets. Integrates with OpenTelemetry, LangChain, OpenAI SDK, LiteLLM, and more. 🍊YC W23

codu. Codú's open-source codebase. A space for coders. Visit our community!

oyster. Monorepo that houses ColorStack's core product software.

docmost. Docmost is an open-source collaborative wiki and documentation software. It is an open-source alternative to Confluence and Notion.

rushstack. Monorepo for tools developed by the Rush Stack community

colibri. Colibri is a simple web application to manage, read and download your ebooks.

daimo. This is our old, archived payments app. For our current product, see our website.

tunarr. Create a classic TV experience using your own media - IPTV backed by Plex/Jellyfin/Emby/NFO

plainstack. A single-file web framework

ossinsight. Analysis, Comparison, Trends, Rankings of Open Source Software, you can also get insight from more than 10 billion with natural language (powered by LLM). Follow us on Twitter: https://twitter.com/ossinsight

sdk. A simple framework for humans Server-first React, running on the Cloudflare platform. Simple to build. Easy to maintain.

immich. High performance self-hosted photo and video management solution.

msw. Industry standard API mocking for JavaScript.

ts-plugin-sort-import-suggestions. Customize the priority of auto-import suggestions from TypeScript Language Server

proposal-enum. Proposal for ECMAScript enums

paseto-ts. PASETO v4 (encrypt, decrypt, sign & verify) in TypeScript

typescript-types-only-wasm-runtime. A WebAssembly runtime implemented in TypeScript types

chatgpt-custom-instructions. My own Prompts for Custom instructions ChatGPT

showify. Arguably the most comprehensive library for stringifying any JavaScript value into a human-readable format, handling nearly every scenario you might encounter.

deconstructor. A beautiful and interactive web application that deconstructs words into their meaningful parts and explains their etymology.

oxidase. Transpiles TypeScript at the Speed of Parsing

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

stripe-recommendations. How to implement Stripe without going mad

dragonfly. A modern replacement for Redis and Memcached

disposable-email-domains. A list of disposable email domains

nuqs. Type-safe search params state manager for React frameworks - Like useState, but stored in the URL query string.

prisma-kysely. 🪄 Generate Kysely types directly from your Prisma schema!

playwright. Playwright is a framework for Web Testing and Automation. It allows testing Chromium, Firefox and WebKit with a single API.

npq. safely install npm packages by auditing them pre-install stage

ultimate-express. The Ultimate Express. Fastest http server with full Express compatibility, based on µWebSockets.

chrono. A natural language date parser in Javascript

porffor. An ahead-of-time JavaScript compiler

compear. Utilities for comparing and sorting in JavaScript

pg-boss. Queueing jobs in Postgres from Node.js like a boss

ecosystem-issues. A place to keep track of ongoing efforts to improve performance in the JS ecosystem

std. The Deno Standard Library

stdext. Deno Standard Library Extended

better-typescript-lib. Better TypeScript standard library

q1k3. A tiny FPS for js13k

typst. A markup-based typesetting system that is powerful and easy to learn.

nrr. Minimal, blazing fast npm scripts runner

mailpit. An email and SMTP testing tool with API for developers

es-toolkit. A modern JavaScript utility library that's 2-3 times faster and up to 97% smaller—a major upgrade to lodash.

www-project-secure-coding-practices-quick-reference-guide. OWASP Foundation Project Web Repository for Secure Coding Practices Quick-reference Guide

vscode-file-nesting-config. Config of File Nesting for VS Code

eslint-config-hardcore. The most strict (yet practical) ESLint config. 51 plugins. 1376 rules. React, Vue, Node, and pure JS/TS.

island.is. Monorepo for Iceland's digital services.

prql. PRQL is a modern language for transforming data — a simple, powerful, pipelined SQL replacement

xstate. State machines, statecharts, and actors for complex logic

the-superviral-word-game. A Vue word game based on the Yakut national sport "Mas-wrestling". Uses XState for state management, WebRTC for multiplayer and has custom WebGL engine

blurhash. A very compact representation of a placeholder for an image.

tsconfig. The simplest way to set up your tsconfig.json

Eudoxus-Sans. This simple geometric font is named after the Greek mathematician Eudoxus of Cnidus. It is based on +Jakarta Sans by tokotype.

path-to-regexp. Turn a path string such as `/user/:name` into a regular expression

proposal-math-sum. TC39 proposal to add a summation method to JavaScript

proposal-signals. A proposal to add signals to JavaScript.

toposort. TypeScript toposort

deepkit. modular high-performance TypeScript framework

jsdom. A JavaScript implementation of various web standards, for use with Node.js

copenhagen. A basic guideline on implementing auth for the web

pglite. Embeddable Postgres with real-time, reactive bindings.

web. React hooks done right, for browser and SSR.

ls-lint. An extremely fast directory and filename linter - Bring some structure to your project filesystem

ultra-runner. 🏃⛰ Ultra fast monorepo script runner and build tool

use-deep-compare-effect. 🐋 It's react's useEffect hook, except using deep comparison on the inputs, not reference equality

prisma-extension-kysely. Drop down to raw SQL in Prisma without sacrificing type safety!

betterize. A modern and opinionated CSS normalization file for better cross-browser design and default styling in 2024 and beyond!

smoke. Run Web Servers in Web Browsers over WebRTC

zero. A 3D renderer written in JavaScript and rendered to the terminal.

typebox. JSON Schema Type Builder with Static Type Resolution for TypeScript

spectypes. Fast, compiled, eval-free data validator/transformer

colorette. 🌈Easily set your terminal text color & styles

professional-programming. A collection of learning resources for curious software engineers

Metropolis. A modern, geometric typeface by @chrismsimpson (last commit @ 85fa625 Jun 9, 2020 before deletion) Removed because of https://discourse.mozilla.org/t/metropolis-font-repo-missing/69415/3

cuid2. The most secure, collision-resistant ids optimized for horizontal scaling and performance.

instrument-serif.

pretendard. 어느 플랫폼에서든 사용할 수 있는 system-ui 대체 글꼴 | A system-ui alternative font for all cross-platform

haskoy. Hasköy is an open-source variable sans-serif typeface family

instrument-sans.

Giphurs. A sans serif font like Arial, Circular, Helvetica on budget made with Fontforge, with the goal to upload it on Google Fonts.

Inclusive-Sans. Python

Overused-Grotesk. A variable sans serif typeface inspired by the classic neo-grotesk Swiss design

Liga-Sans. An inclusive genderfuck sans-serif typeface tailored for Manon Didierjean's book 'Beyond Human' published in 2021

uncut_sans. Uncut Sans font family

typed-css-modules. Creates .d.ts files from CSS Modules .css files

js-framework-benchmark. A comparison of the performance of a few popular javascript frameworks

ts-expect. Checks TypeScript types match expected values

quick-lint-js. quick-lint-js finds bugs in JavaScript programs

execa. Process execution for humans

ogl. Minimal WebGL Library

mona-sans. Mona Sans, a variable font from GitHub

hubot-sans. Hubot Sans, a variable font from GitHub

vitest. Next generation testing framework powered by Vite.

vanilla-extract. Zero-runtime Stylesheets-in-TypeScript

emotion. 👩‍🎤 CSS-in-JS library designed for high performance style composition

css-in-js. A thorough analysis of all the current CSS-in-JS solutions with SSR & TypeScript support for Next.js

proposal-iterator-helpers. Methods for working with iterators in ECMAScript

cva. Class Variance Authority

biome. A toolchain for web projects, aimed to provide functionalities to maintain them. Biome offers formatter and linter, usable via CLI and LSP.

slate. A completely customizable framework for building rich text editors. (Currently in beta.)

yjs. Shared data types for building collaborative software

clsx. A tiny (239B) utility for constructing `className` strings conditionally.

javascript. Universally Unique Lexicographically Sortable Identifier

nanoid. A tiny (118 bytes), secure, URL-friendly, unique string ID generator for JavaScript

tsx. ⚡️ TypeScript Execute | The easiest way to run TypeScript in Node.js

gemoji. Info on gemoji (GitHub Emoji)

emojibase. 🎮 A collection of lightweight, up-to-date, pre-generated, specification compliant, localized emoji JSON datasets, regex patterns, and more.

smartypants.js. JavaScript port of SmartyPants.pl

markdig. A fast, powerful, CommonMark compliant, extensible Markdown processor for .NET

difftastic. a structural diff that understands syntax 🟥🟩

lets-prove-leftpad. Proving leftpad correct two-dozen different ways

opentofu. OpenTofu lets you declaratively manage your cloud infrastructure.

mixbox. Mixbox is a library for natural color mixing based on real pigments.

lowdb. Simple and fast JSON database

smol-toml. A small, fast, and correct TOML (1.1.0) parser and serializer

just. the only javascript runtime to hit no.1 on techempower :fire:

FrameworkBenchmarks. Source for the TechEmpower Framework Benchmarks project

Gantari. A humanist sans serif typeface

partykit. PartyKit simplifies developing multiplayer applications

manifesto. The OpenTF Manifesto expresses concern over HashiCorp's switch of the Terraform license from open-source to the Business Source License (BSL) and calls for the tool's return to a truly open-source license.

escodegen. ECMAScript code generator

safeql. Validate and auto-generate TypeScript types from raw SQL queries in PostgreSQL.

faucet. human-readable TAP summarizer

knip. ✂️ Find unused files, dependencies and exports in your JavaScript and TypeScript projects. Knip it before you ship it!

oxc. ⚓ A collection of high-performance JavaScript tools.

bases. Hosts TSConfigs to extend in a TypeScript app, tuned to a particular runtime environment

csstype. Strict TypeScript and Flow types for style based on MDN data

valibot. The modular and type safe schema library for validating structural data 🤖

TypeChat. TypeChat is a library that makes it easy to build natural language interfaces using types.

comic-mono-font. A legible monospace font... the very typeface you’ve been trained to recognize since childhood

eslint-plugin-sonarjs. SonarJS rules for ESLint

virtual-dom. A Virtual DOM and diffing algorithm

morphdom. Fast and lightweight DOM diffing/patching (no virtual DOM needed)

libpg-query-node. 🐘 libpg_query PG port for node.js

re-build. Building regular expressions with natural language

proposal-call-this. A proposal for a simple call-this operator in JavaScript.

neverthrow. Type-Safe Errors for JS & TypeScript

esmeta. ECMAScript Specification (ECMA-262) Metalanguage

cosmiconfig. Find and load configuration from a package.json property, rc file, TypeScript module, and more!

jest-light-runner. A Jest runner that runs tests directly in bare Node.js, without virtualizing the environment.

javascript-style-guide. This project is a code style guide of all basic back- and front end project used at Anolilab.

eslint-plugin-perfectionist. ☂️ ESLint plugin for sorting various data such as objects, imports, types, enums, JSX props, etc.

pythagora. Generate automated tests for your Node.js app via LLMs without developers having to write a single line of code.

ezno. A correct and efficient TypeScript type checker and compiler with additional experiments

ts-prune. Find unused exports in a typescript project. 🛀

unimported. Find and fix dangling files and unused dependencies in your JavaScript projects.

genql. Type safe TypeScript client for any GraphQL API

source-map. Consume and generate source maps.

open-source-alternatives. List of open-source alternatives to everyday SaaS products.

guidance. A guidance language for controlling large language models.

van. 🍦 VanJS: World's smallest reactive UI framework. Incredibly Powerful, Insanely Small - Everyone can build a useful UI app in an hour.

ts-pattern. 🎨 The exhaustive Pattern Matching library for TypeScript, with smart type inference.

arktype. TypeScript's 1:1 validator, optimized from editor to runtime

skew. A web-first, cross-platform programming language with an optimizing compiler

kiwi. A schema-based binary format for efficiently encoding trees of data

proposal-set-methods. Proposal for new Set methods in JS

proposal-extensions. Extensions proposal for ECMAScript

proposal-bind-operator. This-Binding Syntax for ECMAScript

ink-ui. 💄 Ink-redible command-line interfaces made easy

zod-chatgpt. TypeScript

jsonformer. A Bulletproof Way to Generate Structured JSON from Language Models

proposal-block-params. A syntactical simplification in JS to enable DSLs

shift-parser-js. ECMAScript parser that produces a Shift format AST

shift-fuzzer-js. generate random valid Shift format ASTs

astring. 🌳 Tiny and fast JavaScript code generator from an ESTree-compliant AST.

norm.css. CSS normalization for crossbrowser compatibility

base.css. ⏚ Usefull css defaults

react-spectrum. A collection of libraries and tools that help you build adaptive, accessible, and robust user experiences.

pretty-ts-errors. 🔵 Make TypeScript errors prettier and human-readable in VSCode 🎀