Claude Desktop: expose a spellchecker language setting (stuck on en-US)

Summary

Claude Desktop offers no in-app setting to choose the spellchecker language. The Chromium spellchecker is stuck on en-US, so every word typed in another language is flagged as a misspelling. A French or bilingual user sees their entire text underlined, with no way to fix it from the application.

Type

Feature request (Claude Desktop, Windows / Electron).

Environment

• Claude Desktop (Windows), Electron/Chromium
• UI/session language set to French (fr-FR)

Details

• The spellchecker is Chromium's, controlled by the spellcheck.dictionaries key in %APPDATA%\Claude\Preferences, defaulting to ["en-US"].
• The app declares "locale": "fr-FR" in its own config.json, but the spellchecker ignores it.
• Changing the Windows display language or environment variables has no effect; the internal Chromium spellchecker does not consult them.
• The only workaround is editing the Preferences file manually. The app rewrites this file on a clean exit, so the edit only sticks if the app is force-quit before relaunch.

Comparison

Obsidian, also Electron-based, exposes the spellchecker language in its settings. Same underlying engine; only the access to the option differs.

Request

Expose a spellchecker language selector in Claude Desktop settings, ideally multi-language (e.g. French and English simultaneously for bilingual users), and preferably defaulting to the app's locale.

Accessibility impact

Permanent, incorrect underlining is a real cognitive load, especially for users sensitive to visual and structural consistency. The gap directly degrades comfort of use in any non-English language.