> ## Documentation Index
> Fetch the complete documentation index at: https://www.rumus.ai/docs/llms.txt
> Use this file to discover all available pages before exploring further.

# Display language

> Switch the Rumus UI to your preferred language.

Rumus's UI is translated into several languages. Pick one in **Settings → Appearance → Display Language**, and the change applies immediately — no restart needed.

## Supported languages

| Option             | Notes                             |
| ------------------ | --------------------------------- |
| **System Default** | Tracks your OS's language setting |
| **English**        | The source language               |
| **简体中文**           | Simplified Chinese                |
| **繁體中文**           | Traditional Chinese               |
| **日本語**            | Japanese                          |
| **한국어**            | Korean                            |
| **Español**        | Spanish                           |

If your system language isn't on the list, **System Default** falls back to **English**.

## What gets translated

The display language affects:

* **Settings UI** — every page, every label.
* **Menus** — the title bar, context menus, and dialogs.
* **Notifications** — toast messages and confirmation prompts.
* **Onboarding text** — for users still going through first-launch (where applicable).
* **AI sidebar UI** — the labels around the chat, but **not** the AI's replies. The agent responds in whatever language you wrote in.

## What doesn't change

* **Your terminal output** — `ls`, `git`, and friends speak whatever language they're configured to. That's a shell / locale setting, not a Rumus one.
* **AI conversation contents** — the agent matches your input language. A Chinese prompt gets a Chinese reply; a Japanese prompt gets a Japanese reply.
* **AI auto-named conversation titles** — also generated in the language of your message, regardless of UI language.

## Settings sync

Display language is part of [config sync](/docs/account/sync). Switching language on one device propagates to your others on the next sync.

## Tips

* **Switching is instant.** Try a language for a few minutes — if it doesn't fit, switch back.
* **System Default is convenient on multi-language machines.** If you regularly switch your OS language, having Rumus follow saves a manual step each time.
* **Translation gaps are real.** Some recently-added strings might not be translated yet in every language; English usually shows through where translation is missing.

## Help us translate

The Rumus UI is translated by the community as well as the team. If you spot a translation that reads oddly, reach out via the [community](https://www.rumus.ai/community) — fixes go into the next release.

## Next steps

<CardGroup cols={2}>
  <Card title="Themes & color schemes" icon="palette" href="/docs/customization/themes">
    Pair your language with the right window theme.
  </Card>

  <Card title="Keyboard shortcuts" icon="keyboard" href="/docs/customization/keyboard">
    Some shortcut labels read differently in different languages — rebinding works the same.
  </Card>
</CardGroup>