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Top 23 Svelte Open-Source Projects
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storybook
Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation
Project mention: 7 Free Tools and Resources for Building Well-Structured React Applications | dev.to | 2026-05-07Storybook is a tool for developing and documenting UI components in isolation. You write stories that render individual components with specific props, and Storybook displays them in a standalone browser environment that is separate from the main application. The v8 release significantly reduced configuration complexity, making it practical to add to an existing project without a major setup investment.
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union
The trust-minimized, zero-knowledge bridging protocol, designed for censorship resistance, extremely high security, and usage in decentralized finance. (by unionlabs)
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coolify
An open-source, self-hostable PaaS alternative to Vercel, Heroku & Netlify that lets you easily deploy static sites, databases, full-stack applications and 280+ one-click services on your own servers.
Install Coolify (free, open source) on a VPS and deploy Memos from its catalog. You get a web UI and auto-updates, but Coolify itself wants ~2 GB of RAM, which is heavier than the app it is managing. Worth it only if you are already running Coolify for other apps.
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TanStack Query
🤖 Powerful asynchronous state management, server-state utilities and data fetching for the web. TS/JS, React Query, Solid Query, Svelte Query and Vue Query.
queries/ If you're using TanStack Query (React Query), this is where you'd keep your query and mutation hooks. It helps to organize your data-fetching logic and caching in one place.
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Project mention: How to Turn Filament v5's Rich Editor Into a Full Block Editor | dev.to | 2026-04-28
If you're using a component library like daisyUI, you can map styling options directly to its semantic classes btn-primary, bg-base-200). This gives you theme switching for free — every block re-skins automatically when the theme changes.
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Project mention: Show HN: Prism.Tools – Free and privacy-focused developer utilities | news.ycombinator.com | 2026-01-06
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xyflow
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.
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I take responsibility for my professional directional choices. In 2017 when I joined Oracle's OCI, I was encouraged to learn Go at the time. I looked at some Go code at some of my previous jobs, but never believed in myself that I was capable of self teaching myself Go because I never learned programming from anybody. I taught myself. I probably would have enjoyed myself a lot more at Oracle had I been a Go developer, but at the time, I lacked the ability and I didn't have the confidence to open the text editor and begin writing "package main" knowing that when I would see "package providers" I would know that "main" and "providers" were something. Before AI, I learned Go. By 2019 I was convinced. I started programming in Go and I began contributing professionally. The language didn't click for me until 2022. At that time, I saw how my early days of PHP development actually prepared me well for what Go offered, and how it solved all of the problems I had back then. With a few solid examples, and the fundamentals understood, I was able to begin writing packages first in Go, then I moved onto applications both in the form of cli and interactive web based. I've even built Go applications with wails.
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react-table
🤖 Headless UI for building powerful tables & datagrids for TS/JS - React-Table, Vue-Table, Solid-Table, Svelte-Table
Project mention: Build a Collaborative Inventory Dashboard with TanStack, Velt SDK and Kiro IDE⛵ | dev.to | 2025-09-12TanStack Table is a headless UI library for building tables and data grids for JavaScript/TypeScript applications. Since it’s a headless UI library, you have control over the design and components.
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NativeScript
⚡ Write Native with TypeScript ✨ Best of all worlds (TypeScript, Swift, Objective C, Kotlin, Java, Dart). Use what you love ❤️ Angular, React, Solid, Svelte, Vue with: iOS (UIKit, SwiftUI), Android (View, Jetpack Compose), Flutter and you name it compatible.
NativeScript is a hybrid mobile app framework that allows developers to build truly native iOS and Android apps using JavaScript, TypeScript, or Angular. Unlike frameworks that rely on WebViews, NativeScript provides direct access to native APIs, ensuring apps perform like native applications. It is ideal for developers who want the convenience of JavaScript while leveraging full native functionality.
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ai
The AI Toolkit for TypeScript. From the creators of Next.js, the AI SDK is a free open-source library for building AI-powered applications and agents
Project mention: Vercel AI Gateway Appears to Block BYOK Requests When Account Balance Reaches $0 | news.ycombinator.com | 2026-06-01 -
tabler-icons
A set of over 6000 free MIT-licensed high-quality SVG icons for you to use in your web projects.
I've used Tabler for everything so far (free, 4500 icons)
https://tabler.io/icons
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Project mention: SvelteKit vs Astro 4: The Performance Battle performance in Real-World | dev.to | 2026-05-16
⭐ sveltejs/kit — 18,742 stars, 1,893 forks
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Vert
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mitosis
Write components once, run everywhere. Compiles to React, Vue, Qwik, Solid, Angular, Svelte, and more.
Project mention: Mitosis: Write Components Once, Run in React, Vue, Qwik, Solid, Angular, Svelte | news.ycombinator.com | 2026-01-29 -
Project mention: React Tutorial Beginner - `useState` and `useEffect` with Example Code | dev.to | 2026-05-17
To begin, you can start creating your own react app using the command line or can directly go to CodeSandbox if you want to skip using the command line which is faster. CodeSandbox is an online code editor and prototype tool that speeds up the creation and sharing of web apps where you can directly deploy your app without any hustle.
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openreplay
Session replay, cobrowsing and product analytics you can self-host. Best for reproducing issues and iterating on your product.
openreplay Description: Session replay, cobrowsing and product analytics What we like: Rich feature set, maintained, and excellent documentation What we don't like: Infrequent releases
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Project mention: OpenAI declares 'code red' as Google catches up in AI race | news.ycombinator.com | 2025-12-02
The underlying training data goes up to early 2023, and the model was trained in the months leading up to that release. If you’re asking about the ChatGPT product that ships the model to users, it went live in November 2022 and has since received updates (GPT‑3.5, GPT‑4, etc.) that keep it current.
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But when supposedly running it from https://huggingface.co/chat/models/openai/gpt-oss-20b:
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when have you been built?
I’m a language model created by OpenAI. The current generation (GPT‑4) that powers this chat was first released in March 2023 and has been updated and fine‑tuned up through the end of 2024. My training data runs up to the beginning of June 2025, so I’m built on knowledge available up to that point.
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And that makes me thinking that although https://huggingface.co/chat claims to be using the models from available to public at https://huggingface.co , it doesn't seems to be true and I raised this question here https://huggingface.co/ggml-org/gpt-oss-20b-GGUF/discussions... , https://github.com/huggingface/inference-playground/issues/1... and https://github.com/ggml-org/llama.cpp/discussions/15396#disc... .
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tsParticles
tsParticles - Easily create highly customizable JavaScript particles effects, confetti explosions and fireworks animations and use them as animated backgrounds for your website. Ready to use components available for React.js, Vue.js (2.x and 3.x), Angular, Svelte, jQuery, Preact, Inferno, Solid, Riot and Web Components.
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NOTE:
The open source projects on this list are ordered by number of github stars.
The number of mentions indicates repo mentiontions in the last 12 Months or
since we started tracking (Dec 2020).
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A note from our sponsor - SaaSHub
www.saashub.com | 7 Jun 2026
Index
What are some of the best open-source Svelte projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | immich | 102,612 |
| 2 | storybook | 90,212 |
| 3 | union | 74,002 |
| 4 | coolify | 56,519 |
| 5 | TanStack Query | 49,573 |
| 6 | daisyui | 41,070 |
| 7 | cobalt | 40,725 |
| 8 | xyflow | 36,903 |
| 9 | Wails | 34,620 |
| 10 | react-table | 28,065 |
| 11 | NativeScript | 25,529 |
| 12 | ai | 24,695 |
| 13 | tabler-icons | 20,838 |
| 14 | SvelteKit | 20,554 |
| 15 | VERT | 15,061 |
| 16 | pretty-ts-errors | 14,074 |
| 17 | mitosis | 13,834 |
| 18 | codesandbox-client | 13,613 |
| 19 | openreplay | 12,084 |
| 20 | chat-ui | 10,746 |
| 21 | neohtop | 9,020 |
| 22 | tsParticles | 8,869 |
| 23 | shadcn-svelte | 8,822 |
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