NoAmericanisms by su-lewis
Strictly enforces British English across the web. Underlines Americanisms as you type with an instant click-to-fix menu, and can auto-translates web pages into British English.
Extension Metadata
About this extension
Tired of seeing American spellings and slang across the internet? NoAmericanisms is an ultra lightweight, and optimised browser extension designed to strictly enforce proper British English.
- Type British Underlines American spelling and slang as you type in text boxes and rich-text editors. Click the underlined word to see and select the British English version.
- Read British Seamlessly translates Americanisms on websites you visit into British English.
- Slang Toggle: Includes an optional database of modern and Gen-Z American slang (translates no cap, bro, wacky, and more into British English).
- 350+ Words & Phrases: Covers everything from classic spelling variations (colour, flavour) to idioms (can I get a, touch base, least worst) and other terms.
- 100% Local: Runs entirely on your computer. No data ever leaves your browser.
- Zero Bloat: Built in pure Vanilla JavaScript. Uses virtually zero RAM and CPU.
- Instant Toggle: Turn features on or off in the extension menu, and pages update in real-time.
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Permissions and data
Required permissions:
- Access your data for all websites
Data collection:
- The developer says this extension doesn't require data collection.
More information
- Add-on Links
- Version
- 1.0
- Size
- 21.49 KB
- Last updated
- 5 days ago (Aug 23, 2026)
- Related Categories
- License
- All Rights Reserved
- Privacy Policy
- Read the privacy policy for this add-on
- Version History
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