Write the scene in your head as a Japanese sentence and this tool drafts the English Stable Diffusion / NovelAI prompt words for it. Paste something like `桜の木の下で微笑んでいる黒髪の少女、白いワンピース、逆光、最高品質` and it breaks the common phrases into English prompt words such as `cherry blossom tree, smile, black hair, 1girl, white dress, backlighting, best quality`. It works by greedy longest-match against a bundled phrase dictionary (subjects and counts, hair color/length, eyes, expressions, clothing, pose and composition, backgrounds, and art-style/quality terms), skipping Japanese particles (の, が, を…) and punctuation as word boundaries, so you can paste natural sentences without cleaning them up first. Multi-word English terms (like `blue eyes`) can be joined into booru/Danbooru style (`blue_eyes`) with the "Join words with _" option. Words not in the dictionary are never machine-guessed — you choose to keep them as-is or mark them with `(?)`, so a wrong guess never silently lands in your prompt. This is a drafting aid for "think in Japanese, get an English prompt starting point," not an exhaustive translation engine; it makes no network calls and processes everything locally in your browser. For strict booru tag translation use tag-translate, and for tidying (dedupe, sorting) use prompt-organizer / tag-format.