Skip to content
Tenkai
Romaji on
For true beginners
Auto
Light
Dark
Log in
EN
日本語
Text Tools
Everything for working with real-world Japanese or English text — read, scan, paste, browse, vote.
Reader
Log in to use
Open a passage with word-level SRS coloring. Tap any word for a definition.
OCR an image
Scan text from a photo, manga, or sign. Free anon tier; logged in unlocks more.
Paste & mine
Log in to use
Paste any text. Tenkai tokenises it and adds unknown words to a deck.
Browse corpus
Explore the word/kanji/sentence corpus. JLPT/CEFR level filters.
Sentences
Log in to use
User-submitted sentences. Vote, add your own, learn from real examples.
Tribunal
Log in to use
Triage reported sentences. Help keep the community corpus clean.