Svelte GitHub Repositories (2026) · Open Source Tools

Utsuwa is an open-source alternative to Grok Companion. This is a platform where you can have a virtual AI waifu that learns and grows with you, bundled with optional mechanics inspired by Japanese dating sim games.

React Flow | Svelte Flow - Powerful open source libraries for building node-based UIs with React (https://reactflow.dev) or Svelte (https://svelteflow.dev). Ready out-of-the-box and infinitely customizable.

The cross-browser extension framework.

web development, streamlined

A modern, open-source database client for desktop and web.

Forme is a document engine for JavaScript, written in Rust and compiled to WASM. Render the HTML and print CSS you already have, or author React, Svelte, Vue, and Preact components. Paginated PDFs in-process - no headless browser.

BottleCRM: free, open-source (MIT) CRM with sales, support tickets and invoicing in one app. Unlimited users; self-host or use the hosted app.

Lightweight self-hosted NVR in Go — single static binary, zero dependencies, embedded web UI. RTSP/ONVIF/Xiaomi/GB28181/WHIP cameras, RTMP/SRT push-in, WebRTC/HLS/FLV live view, audio, timelapse, continuous playback, S3 offload, browser-side AI detection. Runs on low-power ARM.

🤖 Powerful asynchronous state management, server-state utilities and data fetching for the web. TS/JS, React Query, Solid Query, Svelte Query and Vue Query.

A front-end UI for ComfyUI made for beginner level users.

Fully customizable AI chatbot component for your website

ClassroomIO is an Intelligent Customer Training Platform that helps SaaS companies use education to grow their business.

🧡 Turn your API spec into type-safe code. Generate TypeScript types, API clients, hooks, validators and mocks from a spec such as OpenAPI.

A zero-config, fast and small virtual list, grid and masonry component for React, Vue, Solid, Svelte and Angular.

Create beautiful applications using Go

Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation

AI-powered Storybook story generator — works with any framework, any design system, any LLM provider

A self-hosted homelab dashboard with an optional built-in reverse proxy that makes stubborn apps work in iframes

Windows-first desktop oversight for AI agents: live monitoring, local security reviews, token usage, audit reports and opt-in action policies/MCP gateways. Experimental Hyper-V guest execution; macOS/Linux experimental.

Configurable HTML, Vue, Svelte, Astro, Angular, Jinja, Twig, Nunjucks, Vento, Mustache, Handlebars and XML formatter with dprint integration.