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unbash is a fast, zero-dependency bash parser written in TypeScript that produces a typed AST with tolerant, non-throwing error handling, useful for tooling that needs to analyze or lint shell scripts.
key-amnesia lets AI coding agents use your passwords and API keys without ever seeing the values, injecting secrets into child processes and censoring them from command output before the agent can read it.
CSS Studio is a local, in-browser visual editor that lets you tweak colors, layout, typography, and animations directly on your live site while an AI coding agent writes the matching changes to your real source files.
celld is an open-source, self-hosted daemon from Deno's creator that runs Cloudflare-style Workers and Durable Objects on your own infrastructure, using per-object SQLite and S3-compatible storage instead of a control plane.
SolidStart is the official full-stack framework for SolidJS, built on Vite 8 and Nitro with built-in auth, middleware, and websocket support. SolidStart 2 brings modern tooling and deploy targets like Netlify and Cloudflare.
dbdiagram.io lets you design database schemas by writing a simple DSL (DBML) and instantly see the entity-relationship diagram. It can import from or export to SQL for Postgres, MySQL, and other databases.
Mermaid lets you generate flowcharts, sequence diagrams, Gantt charts, and more from simple Markdown-inspired text syntax. It's widely supported in docs tools, GitHub, and note-taking apps, so diagrams stay easy to version and update.
Bumblebee is Perplexity's open-source, read-only scanner that checks npm, PyPI, MCP configs, and editor/browser extensions on developer machines for known supply-chain compromises. It's a zero-dependency Go tool that never executes install scripts, making it safe for routine audits or incident response.
Superdesign is an AI product design agent that generates UI mockups, components, and full design systems from a prompt on an infinite canvas. It also plugs into coding agents like Claude Code and Cursor so AI-generated UI looks considered instead of generic.
tldraw is an open-source SDK for building infinite canvas and whiteboard apps in React, with real-time collaboration and custom shapes built in. It powers whiteboard features in products like ClickUp and Padlet.
A lightweight feedback layer for live prototypes and staging sites: paste any URL and reviewers can click anywhere on the page to pin a comment, no signup or extension required.
GitHub's official CLI extension for stacked pull requests, letting you break large changes into a chain of small reviewable PRs that stay rebased and linked automatically.
A color system workspace for building harmonious, accessible color palettes with contrast checks, then syncing them to Figma variables or exporting as CSS and SCSS tokens.
Offline-first SQL sync library that gives every client a real local SQLite database synced through a server-side commit log, with optimistic writes, CRDT conflict resolution, and optional per-column encryption.
Hugeicons is a pixel-perfect icon library with 54,000+ icons across 10 styles (5,400+ free), with ready-made packages for React, Vue, Svelte, Angular, React Native, Flutter, and more.
Museboard is a fast, no-login moodboarding tool for dragging, dropping, and sharing visual inspiration instantly — handy for quick brand, shoot, or concept exploration.
TailGrids is an open-source React UI library built with Tailwind CSS, offering hundreds of production-ready components, blocks, and templates plus a matching Figma design system.
D2 is a modern diagram scripting language that turns plain text into clean architecture, sequence, and flow diagrams, with a live playground, autoformatter, and SVG/PNG/PDF export.
Manifest is an open-source, self-hostable backend-as-a-service that gives you a full backend—database, instant CRUD APIs, authentication, an admin panel, and file storage—by writing a single YAML file.
scriptc is a TypeScript-to-native compiler from Vercel Labs that produces small, self-contained executables without bundling Node or a JavaScript engine. Ordinary TypeScript is type-checked by tsc and compiled through LLVM to native machine code that starts in milliseconds.
SigNoz is an open-source observability platform built natively on OpenTelemetry, unifying logs, traces, and metrics in one application. It's a self-hostable alternative to Datadog and New Relic for application performance monitoring.
OpenPencil is an open-source, MIT-licensed design editor that opens .fig files natively and runs fully locally with no account required. It includes a built-in AI assistant, a programmable CLI, and peer-to-peer real-time collaboration.
Octane is a compiler-first successor to React that keeps hooks, Suspense, and actions while removing the virtual DOM and manual dependency arrays. It ports incrementally from existing React apps and ships bindings for TanStack, React Three Fiber, and more.
An open-source graph-relational database built on Postgres with a powerful query language, built-in auth, and a simplified migrations workflow.
An AI-native design tool that turns prompts and product requirements into production-ready, on-brand UI code for fast prototyping and engineering handoff.
A lightweight, framework-agnostic component library built with Tailwind CSS that brings shadcn/ui's design system to any web stack without requiring React.
A free, open-source registry of composable, accessible React components that extends shadcn/ui with advanced blocks like Kanban boards, Gantt charts, and code editors.
Open-source code editor built from scratch in Rust for speed, with native parallel AI agent support, edit prediction, and multi-model chat built in.
Free, open-source mobile UI component library built with Tailwind CSS, offering pixel-perfect iOS and Material Design components for React, Vue, and Svelte.
An open-source, AI-first visual editor for React and Next.js. Designers can select and style elements in a running app, and the changes are written straight back to the real code.
An open-source, self-hostable alternative to Heroku and Netlify. One-click deploys apps, databases, and services to your own servers with Docker, Git integration, and automatic SSL.
An AI design tool that turns text prompts into fully editable, layered graphics such as posters, presentations, and social posts in about a minute.
An open-source, real-time dashboard for visualizing and analyzing network traffic across gateways like OpenWrt, Clash/Mihomo, and Surge.
A modern, production-ready React component library built with Tailwind CSS v4 and React Aria, offering accessible components with no provider wrapper required.
A build-time compiler for Vite, webpack, esbuild, and Rollup that transforms Zod schemas into zero-overhead validation functions, delivering 2-75x faster validation with no source code changes.
A Figma plugin that adds real-time glass, noise, glitch, and pattern displacement effects to images and UI elements directly inside your designs.
An AI-powered color palette generator that creates context-aware brand, website, and illustration palettes using machine learning, with real-time previews and color locking.
A JavaScript library that brings TeX-style, publication-grade text justification to the web, with Knuth-Plass line breaking, hyphenation, and CJK support.
Self-hosted database backup manager with a web UI. Schedule, backup, and restore MySQL, PostgreSQL, MongoDB, Redis and more to S3, SFTP, or local storage.
Batteries-included, full-stack Rust web framework from the Tokio team, with async server-rendered components and no separate client build step.
Free color palette and design-token generator: extract colors from images, fine-tune shades, check WCAG/APCA contrast, and export to CSS, Tailwind, or Figma tokens.
Open-source, full-stack TypeScript/React framework for building interactive MCP Apps and ChatGPT Apps that run inside AI chat clients.
Open-source, self-hostable deployment platform with built-in CI/CD — push code and ship containers to your own servers with zero YAML config.
Open-source, shadcn-style terminal UI component library for React, built on Ink and OpenTUI with zero-config, copy-paste components.
A Figma plugin that turns any vector shape, text, or frame into an editable, dynamic liquid metal or chrome effect with one click, right on the canvas.
A self-hosted, Rust-built runtime that mimics Cloudflare Workers, letting you run serverless JavaScript in V8 isolates on your own infrastructure with KV, Postgres, and S3/R2 bindings.
A satirical React component library that turns common AI-startup landing page tropes, glowing CTAs, gradient text, and logo marquees, into ready-made, reusable components.
Open-source, WebGPU-based charting library that renders millions of data points at 60fps with GPU-accelerated zooming, panning, and tooltips.
Python library for writing reliable generative programs: type-annotated LLM outputs, verifiable requirements, and automatic repair loops in place of brittle prompts.
CLI and Go library for creating beautiful, shareable code and terminal screenshots with syntax highlighting, window chrome themes, and automatic secret redaction.
AI prototyping tool that clones your live product into an editable, on-brand replica so PMs and designers can mock up changes that look and behave like the real thing.
Open-source backend-as-a-service with auth, databases, storage, serverless functions, messaging, and realtime, deployable self-hosted or in the cloud.
A web-standards component library for htmx v4 and Tailwind v4, offering accessible copy-paste components across Hono JSX, Jinja2, Go templates, Phoenix, and raw HTML flavors.
A design language and skill set that teaches AI coding tools a shared design vocabulary, with commands like polish, audit, and critique to stop AI-generated frontends from looking generic.
A lightweight JavaScript runtime with its own hand-built engine, Node-compatible APIs, TypeScript support with no build step, and a VM-isolated sandbox for capability-based security.
A fast Rust-powered Markdown and MDX processing pipeline with a JavaScript plugin layer, now used as Astro's default Markdown engine for faster builds.
An open-source connection pooler, load balancer, and sharder for PostgreSQL that scales reads and writes horizontally without changing your application code.
A modern rich text editor for Rails, built by Basecamp on Meta's Lexical framework with clean HTML output, Markdown shortcuts, and code syntax highlighting.
An open-source, copy-paste UI kit of animated React components built with Motion and Tailwind CSS, for fast, beautiful interfaces.
A growing library of free, AI-generated stock photos, illustrations, and 3D assets curated by digital artists, with no royalties.
An open-source API platform with a modern OpenAPI/Swagger reference UI and a built-in REST API testing client, a popular alternative to Swagger UI.
The world's largest open-source React component library, built with Tailwind CSS and React Aria. Copy, paste, and own the code.
A general-purpose sync engine for the web from the makers of Replicache. Zero reached its 1.0 stable release in 2026, offering query-driven, zero-latency client-server sync.
A drag-and-drop UI design tool built for code, exporting clean, deterministic React and Tailwind rather than a design file to hand off. Connects to Cursor and Claude Code via MCP so you can prompt new designs directly from your IDE.
A community-driven marketplace of hand-crafted shadcn/ui-based React and Tailwind components, blocks, and hooks, installable with a single shadcn CLI command. Think npm for design engineers, with live demos for every component.
An open-source, self-hosted PaaS that lets you deploy apps and databases on your own servers with Docker, one-click SSL, and automatic backups. A free alternative to Vercel, Netlify, and Heroku for teams who want to own their infrastructure.
A free, open-source visual theme editor for shadcn/ui that lets you tweak colors, radius, and typography with live previews and export straight to a Tailwind CSS config. Ships with dozens of ready-made presets so you can restyle a whole app without touching code.
A real-time backend-as-a-service that gives your frontend a live, multiplayer database with built-in auth, permissions, storage, and presence. Every query updates instantly across clients with no manual refetching or websocket wiring.
Google Labs' AI-native design canvas that turns prompts, sketches, or screenshots into editable UI designs and front-end code.
An open-source, lightweight browser-based GUI for exploring and editing Postgres, MySQL, and SQLite databases.
A library of animated, CLI-installable React components and micro-interactions for building expressive, modern UIs.
Open-source, local-first alternative to Claude Design that turns the coding agent you already run (Claude Code, Cursor, Codex, etc.) into a design engine producing real prototypes, decks, dashboards, and video files.
Open-source model router that sits in front of the Anthropic, OpenAI, and Gemini APIs and sends each request to the cheapest model that can handle it, cutting inference costs 40-70% with just an endpoint change.
Meta's open-source design system with 150+ accessible components, brand-level theming, and a CLI, built so human developers and AI coding agents can build with the same tooling.
Official collection of agent skills from Vercel Labs covering React best practices, composition patterns, web design guidelines, and Vercel deployment, installable via npx skills add.
Agentic AI training, advisory, and build studio teaching teams to ship production AI with Claude Code, Codex, and other agent harnesses, including the open-source Bencium Skill Marketplace.
A searchable AI design intelligence database of UI styles, color palettes, font pairings, chart types, and UX guidelines, built as a skill for Claude Code and other AI coding agents.
A free, open-source API development ecosystem for building, testing, and documenting REST, GraphQL, WebSocket, and more, offered as a lightweight alternative to Postman and Insomnia.
A native Mac app for capturing, organizing, and searching design inspiration locally, with an open canvas for moodboarding plus visual and color search.
An API to search, scrape, and crawl the web at scale, turning any page into clean Markdown or structured data for AI agents and RAG pipelines.
Unstyled, accessible React UI components from the creators of Radix UI, Floating UI, and Material UI, built for teams who want full control over styling their own design system.
An open-source library of 461+ DESIGN.md files — structured design system specs covering colors, typography, and components that AI coding agents read to generate consistent UI.
A catalog of 150+ real brand DESIGN.md files — drop one into your AI coding agent prompt and it generates UI with accurate brand colors, fonts, and component patterns.
A curated collection of best UX and UI practices organized as interactive checklists — covering buttons, forms, typography, accessibility, and more.
Open-source billing and monetization platform for developers — subscriptions, one-time purchases, and usage-based pricing with a built-in developer dashboard.
Free SVG icons for 3000+ popular brands with a consistent minimal style, perfect for tech stacks and social links.
Beautiful and powerful syntax highlighter for code blocks, powered by TextMate grammars with support for 100+ languages and themes.
Type-safe form validation library for React and Remix with progressive enhancement and full server action support.
Perplexity AI is an AI-powered answer engine that provides accurate, real-time answers with cited sources for research, questions, and exploration.
Notion is an all-in-one productivity workspace with AI built in — combining notes, docs, wikis, databases, and project management in one place.
NotebookLM is Google's AI-powered research assistant that helps you understand and explore your documents through summaries, Q&A, and audio overviews.
Manus is an AI agent platform that autonomously completes complex tasks across research, coding, data analysis, and more.
An AI-powered book tool that helps you get more out of your reading. Generate summaries, ask questions about book content, and extract key insights — making it faster to absorb and apply knowledge from any book.
An AI tool that instantly transforms text into visual diagrams, charts, and infographics. Paste your notes or writing, and Napkin AI generates clean visuals you can edit and export — perfect for turning complex ideas into shareable, presentation-ready graphics.
An AI-powered mobile app builder that lets you create and ship React Native apps through natural language prompts. Describe what you want, and Rork generates fully functional iOS and Android apps — no prior mobile dev experience required.
An AI-powered voice dictation tool that lets you write code, prose, and commands hands-free. Trained on developer vocabulary, it accurately transcribes technical terms, variable names, and code syntax — making it ideal for developers who want to reduce typing or work more ergonomically.
A curated collection of design resources, tools, and inspiration for designers and developers. Discover handpicked websites, UI kits, fonts, color palettes, and more — all in one place to spark your next project.
An AI-powered coding practice platform that helps developers sharpen their skills through curated challenges and real-world exercises. Great for staying sharp on modern web dev patterns and growing taste for clean, idiomatic code.
A curated library of UI styles and design patterns from real apps and websites, searchable by component type. Use it as a reference when designing or prompting an AI to build specific UI elements — buttons, cards, inputs, navbars, and more — with real-world visual inspiration.
A collection of DESIGN.md files — structured design system analyses from real websites — that you can drop into your project as a design reference for AI coding agents. Covers colors, typography, spacing, and component rules so your agent builds to a specific visual language instead of generic defaults.