Nihongo Tint

About

Read more Japanese, more confidently.                                                                                                                                           
                                                                                                                                                                                  
  Nihongo Tint highlights every Japanese word on the page by its grammatical role — particles in one color, verbs in another, nouns in a third — so the structure of every        
  sentence is visible at a glance. No popups, no setup, no API keys. Just open a page and start reading.                                                                          
                                                                                                                                                                                  
  WHAT IT DOES                                                                                                                                                                    
                                                                                                                                                                                  
  ★ Always-on grammar tinting. Particles, verbs, nouns, adjectives, adverbs, auxiliary verbs, conjunctions, and more — each gets its own color across every page you read.        
                                                         
  ★ Click-to-lookup sidebar. Tap any tinted word to see its dictionary definition (Jisho), reading, romaji, and example sentences (Tatoeba) — all in one place. No need to leave
  the page.                                                                                                                                                                       
   
  ★ Sentence context. When you click a word inside a YouTube comment, the sidebar shows the whole sentence with your clicked word highlighted, plus a play button to hear it      
  aloud.                                                 
                                                                                                                                                                                  
  ★ Built-in audio. Click ▶ to hear any word or sentence read aloud. Uses your browser's built-in voice — no network calls, no API costs.                                         
                                          
  ★ AI-powered vocabulary flashcards. Open the popup and tap "Vocabulary flashcards" to extract topic-specific words from whatever you're reading. Powered by Chrome's on-device  
  Gemini Nano — completely private, no data sent anywhere.                                                                                                                        
   
  ★ AI comprehension quizzes. Test whether you actually understood what you read. Same on-device AI, free and offline.                                                            
                                                         
  ★ YouTube-aware. Color-codes captions, English→Japanese translation overlays on comments, focuses content to what you're actually watching (skips the recommended sidebar).     
                                                                                                                                                                                  
  ★ Per-site toggle. Turn the extension on and off per domain with one click.
                                                                                                                                                                                  
  WHO IT'S FOR                                           
                                                                                                                                                                                  
  Japanese learners at any level. Beginners get a visual scaffold for grammar; intermediates get instant lookups without breaking flow; advanced readers get fast vocab and
  comprehension drilling on real-world content.

  PRIVACY                                                                                                                                                                         
   
  Nihongo Tint does not collect, transmit, or sell any personal data. The extension stores a few preferences locally on your device and never sends them anywhere. Dictionary     
  lookups go directly from your browser to Jisho's public API. AI features run entirely on-device using Chrome's Built-in AI — no servers involved.

  FREE TO INSTALL, NO ACCOUNT REQUIRED                                                                                                                                            
   
  The whole v1 experience is free: tinting, dictionary lookup, sidebar, audio playback, AI flashcards, comprehension quizzes. No ads, no tracking, no required subscription. The  
  core experience stays free forever.                    

  A future release may add optional credit packs for premium cloud voices (high-quality Google TTS) — those have a real per-use cost. Everything that costs nothing to run stays  
  free.                                   
                                                                                                                                                                                  
  OPEN TO FEEDBACK                                                                                                                                                                
   
  This is a working solo-developer project. If something breaks or you have an idea, reach out via the support email — we read everything.