Frequently asked questions
Short answers to the things people ask most. Still stuck? Email support.
Basics
Do I need Figma to use UIX?
No. You can make, change and use a design system on the website alone: /generate to start, Studio to change it, and the CSS link, CLI, shadcn or MCP to use it. The Figma plugin is there if your designers work in Figma.
Is it free?
Yes, to start. A free account saves one design system and gets the 41 free presets, the core components and four code formats. UIX Pro adds the rest. See Free and Pro and Pricing.
Where do I find my design system’s id?
It is the last part of the Studio address, /s/<id>: 10 letters and digits. It is also on the Use it page in Studio and in Account → My design systems.
Is uix-ui the same thing as UIX?
They are related. uix-ui is the free, open-source React library made by the same team, and its components are what the CLI and the shadcn registry install. UIX is the design system generator, Studio, your account and the Figma plugin. You can use either one without the other.
Using it in code
I saved in Studio, but my site still shows the old colors.
The CSS link is cached for about a minute. Wait a moment and reload. To skip the cache, add ?v= and a new number to the link. In a repo, run npx uix-ui sync. See CSS link and Tailwind.
The CLI says “UIX themes need Tailwind CSS v4 (found v3)”.
The CLI and the shadcn registry need Tailwind v4. Upgrade the project, or use the CSS link, which works with any CSS.
Can I use it without React or Tailwind?
Yes. The CSS link gives you plain CSS variables. The tokens JSON works with token tools like Style Dictionary. UIX Pro can also export SwiftUI, Jetpack Compose, Flutter, Android XML, WordPress, Webflow and more. See Code export.
Will pull overwrite my changes to a component?
No. Files that already exist are kept, and the CLI tells you which ones it skipped. Add --overwrite when you do want them replaced.
AI agents
Does my AI agent need an API key?
Only for your own design systems. Searching and reading free presets works without one. Keys are free on /account. See MCP server.
My agent doesn’t support MCP. What can I do?
Add the AI Pack files to your repo, or copy the prompt from Studio’s Use it → AI tools into the agent’s chat.
Privacy and data
Who can see my design system?
The list of your systems is private to your account. The hosted files (the CSS link, Tailwind theme, tokens JSON and shadcn registry) are public to anyone who has the id, like a shared link. Don’t put anything secret in a system’s name.
Where does the Figma plugin keep my system?
In your Figma file. It is saved to your UIX account only when you choose Save to my account.
What happens to my links if UIX Pro ends?
They keep working. Within a day they switch to what the free plan includes: light and dark themes and the free components.
Getting help
Email support@useuix.com. Tell us your design system’s id and what you ran, and paste any error message. For bugs in the open-source components, open an issue on GitHub.