Overview
Japanese Lookup on any webpage: highlight → meanings, furigana, stroke order, AI. Also Tra cứu tiếng Nhật. By DangLong Digital.
Japanese Lookup is a Chrome extension for reading the web, studying online, or working with Japanese content. A DangLong Digital product; connect to danglongdigital.com to get an API key. How to use • Highlight (mouseup), select text, or highlight/select + hold Alt — depending on your settings • Each lookup or AI request: up to 300 characters of the text you select • The popup shows Vietnamese/English meanings, furigana, usage, examples, and practical notes (some items require Pro) Features • Look up vocabulary, kanji, and grammar from the catalog on danglongdigital.com • Details tab: meanings, usage, examples — furigana on kanji only; phrases not in the catalog may show a word list to choose from • Kanji tab: KanjiVG stroke order (when the term contains kanji) • AI tab: explanations when you tap the button (API key from the key management page on danglongdigital.com) • Correctly selects words with furigana/ruby on web pages (readings are not mixed into the middle of words) • Long selections: AI returns a shorter summary (translation + nuance) to save quota • No Google sign-in required inside the extension AI quota (transparent) • Free: up to 5 AI uses/day and 30 AI uses/month per account (not multiplied by the number of API keys) • Lookup Pro on the website: higher AI quota • Dictionary & furigana are unlimited and do not use quota — only AI explanations count • Quota is deducted only when AI generates a new response; viewing a cached result does not count • Daily quota resets at 0:00 Vietnam time (UTC+7); monthly quota follows your account/plan cycle and does not roll over Privacy & legal • Only the text you select is sent to our servers — we do not read the full page • API key is stored on your device (chrome.storage.local); UI settings may sync via Chrome Sync • Japanese Lookup legal hub: https://danglongdigital.com/tra-cuu-tieng-nhat/phap-ly • Terms of use: https://danglongdigital.com/tra-cuu-tieng-nhat/phap-ly/dieu-khoan-tra-cuu-tieng-nhat • Privacy policy: https://danglongdigital.com/tra-cuu-tieng-nhat/phap-ly/bao-mat-tra-cuu-tieng-nhat • Browser extension policy (AI & quota): https://danglongdigital.com/tra-cuu-tieng-nhat/phap-ly/chinh-sach-tien-ich-trinh-duyet • Payment & refund policy (Pro): https://danglongdigital.com/tra-cuu-tieng-nhat/phap-ly/chinh-sach-thanh-toan-tra-cuu-tieng-nhat Support: https://danglongdigital.com/phap-ly/thong-tin-nha-cung-cap
Details
- Version1.0.70
- UpdatedSeptember 1, 2026
- Size1.36MiB
- Languages2 languages
- DeveloperLE DANG LONGWebsite
北野3-1-25 センチュリー志木110号 新座市, 埼玉県 3520003 JPEmail
longledang2000@gmail.comPhone
+81 90-7545-0141 - TraderThis developer has identified itself as a trader per the definition from the European Union and committed to only offer products or services that comply with EU laws.
Privacy
Japanese Lookup — Tra cứu tiếng Nhật has disclosed the following information regarding the collection and usage of your data. More detailed information can be found in the developer's privacy policy.
Japanese Lookup — Tra cứu tiếng Nhật handles the following:
This developer declares that your data is
- Not being sold to third parties, outside of the approved use cases
- Not being used or transferred for purposes that are unrelated to the item's core functionality
- Not being used or transferred to determine creditworthiness or for lending purposes
Support
For help with questions, suggestions, or problems, visit the developer's support site