Open-source toolkit for detecting CSS overflow issues in translated web apps. Automatically find where German words break your layouts.
When translated text overflows its container, Lingo Guardian adds a red glow to highlight the issue. Instantly see which elements need CSS fixes.
Learn More →Detect and fix i18n layout issues at every stage of development.
Run headless checks on any URL. Perfect for CI pipelines. Detects overflow issues across all your target languages.
Visual PR Guardian automatically comments on PRs with screenshots of layouts in different languages. Zero config.
Add the useLingoGuardian hook to your app. See red glow on overflow elements in real-time during development.
Desktop app showing your site in 4 languages side-by-side. Integrated with lingo.dev for AI translations.
The desktop companion app for visual i18n testing.
Or install via npm: