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Open-source React component library in the shadcn/ui copy-and-own model, built with Radix and Tailwind.
Watch out · Works with React, Next.js, Tailwind CSS, and TypeScript.
Open source
What to know▼
How it works
An open-source collection of React components and blocks you copy into your codebase and own, built on the shadcn/ui model with Radix UI and Tailwind CSS.
Watch out
Works with React, Next.js, Tailwind CSS, and TypeScript.
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An Apache-2.0, offline-first toolkit that renders in-browser previews of Office, PDF, CAD and other files without a server-side conversion step. For developers embedding document viewers in self-hosted apps.
Watch out · Read-only fidelity varies by file format.
Works offlineOpen sourceSelf-hosted
What to know▼
How it works
A browser-native toolkit that renders read-only previews of Office, PDF/OFD, CAD, archive, email, diagram, 3D, media and data files (206 extensions across 24 pipelines) without a mandatory server-side conversion step.
What's different
Apache-2.0 licensed and offline-first; components can be self-hosted and used across Vanilla JS, React, Vue, Svelte and jQuery.
Best for
Developers embedding document/file preview into private or internal web apps.
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An open-source toolkit that keeps HTML documents visually identical across browser preview, print, and PDF/EPUB export instead of reflowing per surface.
Open sourceCan export my data
What to know▼
How it works
maintains one canonical paginated document across HTML/CSS preview, print, and EPUB export
What's different
open source, works with React or framework-neutral core, no server renderer needed
Best for
developers building documents that must print exactly as previewed
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Free, open-source starter templates for React, Vue and Svelte that replace CAPTCHAs with lightweight anti-bot mini-games, for developers who want protection without hurting UX.
FreeOpen source
What to know▼
How it works
Drop-in starter templates for React, Vue and Svelte that replace CAPTCHAs with interactive, zero-telemetry anti-bot mini-games.
What's different
Blocks bots without the usual CAPTCHA UX friction, and templates are free and open-source with no telemetry.
Pricing
Free and open-source.
Best for
Developers who want bot protection on a web project without hurting the user experience or paying for a CAPTCHA service.
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An edge-native transactional email service for Next.js/Vercel/Cloudflare apps, with a self-hosted open-source option, for developers who don't want to run their own email infrastructure.
Open sourceSelf-hosted
What to know▼
How it works
An edge-native transactional email service for Next.js, Vercel and Cloudflare Workers, with an open-source self-host option.
What's different
Runs at the edge alongside the deploy rather than as a separate hosted email service, and can be self-hosted.
Best for
Developers on Next.js/Vercel/Cloudflare who want transactional email without running their own infrastructure.
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An open-source React textarea component for AI chat UIs, with mentions, slash commands, tags, markdown and attachments, installable via npm or shadcn.
Open source
What to know▼
How it works
An open-source React textarea component for AI chat interfaces, with @mentions, /commands, #tags, inline markdown, undo/redo, file attachments and dark mode built in.
What's different
Installable directly via npm or the shadcn registry — a drop-in component rather than a full chat UI framework.
Pricing
Free, open source.
Best for
Developers building a custom AI chat interface who don't want to build a rich text input from scratch.
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An open-source React library of prebuilt cinematic section transitions for building scroll-driven landing pages, instead of hand-building Framer Motion animations.
Open source
What to know▼
How it works
Provides 60+ prebuilt React section transitions with a one-command CLI installer, built on Framer Motion.
Best for
Developers building scroll-driven landing pages, portfolios, or storytelling sites.
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A TypeScript SaaS boilerplate (Tanstack Start, Hono, Cloudflare) for developers who want a production-ready starting point instead of building auth and billing from scratch.
Open source
What to know▼
How it works
A production-ready SaaS boilerplate built with strict TypeScript, Tanstack Start, Hono and Cloudflare, bundling authentication, payments, database integration and email workflows.
What's different
Avoids cloud-provider lock-in while still bundling the essential SaaS building blocks together.
Best for
Developers and founders who want to skip weeks of repetitive infrastructure setup when launching a new SaaS.
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A library of skeuomorphic React components — CD players, tactile dials, audio visualizers — you copy-paste into your own Next.js/Tailwind project and own outright. For developers.
Open source
What to know▼
How it works
A copy-paste React component library modeled after physical objects like CD players, tactile selectors and audio visualizers, built with Next.js, Tailwind CSS v4 and Framer Motion spring physics.
What's different
Skeuomorphic, physically-inspired design, and you own the code outright instead of depending on a package.
Best for
Developers who want tactile, physically-inspired UI components for a React/Next.js app.
