LinguaLayer - Learn Languages as You Browse

Learn Japanese (and more) by seeing words translated inline as you browse any website. Hover for definitions.

LinguaLayer - Learn Languages While You Browse Turn every webpage into a language lesson. LinguaLayer replaces common English words with their Japanese, Spanish, or French equivalents as you read naturally. HOW IT WORKS - Words on every page you visit are subtly swapped to your target language - Substituted words appear in blue with a dotted underline - Hover over any word to see the original English, translation, and pronunciation - Adjust the intensity slider to control how many words get replaced FEATURES - Three languages: Japanese, Spanish, and French with 500+ word dictionaries each - Adjustable word intensity from 5% to 20% (up to 50% with Pro) - Smart substitution that skips code blocks, input fields, and scripts - Hover tooltips showing English original, translation, and romaji/pronunciation - Works on every website automatically - Toggle on/off with one click from the popup WHY IT WORKS Research shows that contextual learning - encountering new words in familiar settings - dramatically improves vocabulary retention. Instead of dedicated study sessions, you absorb new words while reading articles, browsing social media, or checking email. LANGUAGES - Japanese: 590+ high-frequency words with romaji pronunciation - Spanish: 540+ common words - French: 640+ common words Pro upgrade unlocks higher intensity settings (up to 50% word replacement) and Korean language support. One-time purchase, no subscription. Privacy-first: all processing happens locally in your browser. No data leaves your device. No tracking, no analytics, no accounts.