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Top 23 Svelte Open-Source Projects
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Project mention: A photo library is an identity record that happens to contain pictures | dev.to | 2026-10-04
Immich source repository: https://github.com/immich-app/immich
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AppSignal
Monitoring that respects your time & budget. APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.
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storybook
Storybook is the industry standard workshop for building, documenting, and testing UI components in isolation
Project mention: What is ShaadKit? A Look at My Personal Foundation for Next.js Projects | dev.to | 2026-09-23I also added Storybook because developing a component in Storybook is faster than in Next.js! This is possible thanks to Vite. When I first got to know Storybook, it honestly became very hard for me to walk away from it.
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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.
The advisory credits bugbunny.ai and lists v4.0.0-beta.471 as patched. This is an analysis of that disclosure, not a claim of discovering or reproducing the Coolify vulnerability. Read the original advisory.
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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.
That cache/query layer is exactly what TanStack Query provides - and its Angular adapter is excellent and (yes) already signal-based. query.data(), query.isPending() are signals; no manual subscriptions. So let me get the obvious question out of the way:
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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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Project mention: Standard CSS has become beautiful, Tailwind may no longer be necessary | dev.to | 2026-06-23
What was born to solve this problem was Daisy UI.
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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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.
Project mention: Sub-flows, groups, containers: why nesting breaks every flow library | dev.to | 2026-08-30Look at the top-voted feature requests of any flow library and one theme towers over the rest: users want to put things inside other things. In React Flow's tracker it's "Nested flows", "Nested Nodes" and "absolute positioning in sub flows" — sixty-plus upvotes between them, one still open. This isn't a React Flow problem. It's that nesting looks like a styling feature and is actually a semantics feature, and half-shipping it is worse than not shipping it.
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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
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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
If you’re a JavaScript or TypeScript developer, Vercel AI SDK can help you add AI features to your web apps.
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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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tabler-icons
A set of over 6200 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 3: cómo migrar con sv migrate y el cambio de $lib que el comando no hace por ti | dev.to | 2026-10-02
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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 -
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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.
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In HuggingChat (https://huggingface.co/chat) you can test open models for free and even test specific providers.
From there I collected the following US providers currently serving GLM 5.2:
- Together (https://www.together.ai/models)
- Fireworks (https://fireworks.ai/models)
- Featherless (https://featherless.ai/models)
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SaaSHub
SaaSHub - Software Alternatives and Reviews. SaaSHub helps you find the best software and product alternatives
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).
Svelte discussion
Svelte related posts
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SvelteKit 3: cómo migrar con sv migrate y el cambio de $lib que el comando no hace por ti
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I never wrote an intro post here on dev.to!
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SvelteKit 3 Released
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Show HN: Ssgoi – Native app-like page transitions for mobile web
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Component Party
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Show HN: OpenPost, an open-source alternative to Buffer, CapCut, and Canva
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Show HN: A browser IDE for m68000, Z80 assembly (and more), with graphics
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A note from our sponsor - AppSignal
www.appsignal.com | 6 Oct 2026
Index
What are some of the best open-source Svelte projects? This list will help you:
| # | Project | Stars |
|---|---|---|
| 1 | immich | 115,422 |
| 2 | storybook | 91,199 |
| 3 | union | 73,781 |
| 4 | coolify | 62,558 |
| 5 | TanStack Query | 50,384 |
| 6 | cobalt | 44,644 |
| 7 | daisyui | 42,517 |
| 8 | xyflow | 38,553 |
| 9 | Wails | 36,405 |
| 10 | react-table | 28,471 |
| 11 | ai | 27,118 |
| 12 | NativeScript | 25,664 |
| 13 | tabler-icons | 21,822 |
| 14 | SvelteKit | 20,839 |
| 15 | harper | 16,098 |
| 16 | VERT | 15,663 |
| 17 | mitosis | 14,430 |
| 18 | pretty-ts-errors | 14,096 |
| 19 | codesandbox-client | 13,649 |
| 20 | openreplay | 12,936 |
| 21 | chat-ui | 10,974 |
| 22 | neohtop | 9,394 |
| 23 | shadcn-svelte | 9,175 |
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APM, error tracking, and dashboards for modern web apps. Ten-minute setup, transparent flat pricing, and support from engineers who actually use the product.
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