About The Project
Firstly, thank you for checking out this project! FluentUI Svelte was created to provide a set of Svelte components that follow the Fluent UI design system for another personal project.Technical decisions: why Svelte and plain CSS
I chose Svelte over Fluent UI's official Web Components for a few concrete reasons. First, performance: Svelte is consistently ranked among the fastest frameworks out there, since it compiles components into optimized JavaScript instead of shipping a heavy runtime. Second, Svelte's developer experience and reactivity are on another level. And third, the Shadow DOM used by the official Web Components is a real headache for anyone who needs to customize styles or integrate them with another library.
For the same reason, I went with plain CSS instead of Tailwind: in large, enterprise applications, migrating from Tailwind 3 to 4 (or across any major version) can be a huge undertaking. CSS, on the other hand, will always just be CSS, no matter how many updates come along — it's the safer long-term bet for a library other people are going to build on top of.
Why it took over a year to go public
Publishing this library publicly took me more than a year. I work full-time, and I also maintain other personal projects that take up a good chunk of my free time, so progress on FluentUI Svelte wasn't always fast. Ironically, it was using this library extensively in those very projects that gave me the confidence to finally open it up — seeing it hold up in real, day-to-day applications convinced me it was ready for other people to use too.
This UI is extremely useful for building business-style applications that need a consistent, polished look and feel — and its accessibility features are top notch, which is a must for any business application.
What people notice when using it
I don't have formal reviews to point to, but there's one thing I keep hearing from people using apps built with this UI: they just get it. Because everything follows a consistent, familiar design system, users pick up how to navigate the interface almost immediately, with very little learning curve.
From desktop to any OS, thanks to Tauri
FluentUI Svelte has also been used to build full desktop applications with Tauri, running just as well on Windows, macOS, and Linux. The combination of Rust, Svelte, and Tauri is brutally fast, gives you granular control over every detail, and reactivity that feels top-tier. And because the visual style follows Windows' own design language, it feels familiar to almost anyone — most people have used Windows at some point, so without even realizing it, they already know how to use an interface built with Fluent UI.
Looking for help maintaining this project
FluentUI Svelte has grown into a pretty large library — dozens of components, docs, examples, translations — and keeping up with all of it on my own, in my free time, is a real challenge. If you like this project and want to contribute, whether that's code, documentation, translations, or just reporting bugs, it would help a lot. Check out the open issues on GitHub, or take a look at the contributing guide to see where to start.
I'll keep improving this package whenever I can. If you'd like to support the project, a star or a donation through GitHub Sponsors goes a long way — and it's genuinely appreciated!