About Us
Making pinyin annotation simple, fast, and accurate.
Our mission
Pinyin annotation is a frequent but tedious part of learning and teaching Chinese. Whether a student is reading a lesson, a teacher is preparing worksheets, or a parent is making children's books, everyone needs a fast and accurate annotation tool. We set out to build one that is ready to use instantly, accurate and reliable, and requires no sign-up.
Who it's for
- Students and Chinese learners: annotate lessons and reading materials to support learning.
- Teachers and educators: batch-generate pinyin materials for worksheets, slides, and children's books.
- Content creators and parents: create pinyin stories and picture books.
- Readers with literacy or vision challenges: convert text to pinyin and enlarge it for easier reading.
What we offer
Built on a leading Chinese pinyin engine, the tool achieves over 99% accuracy in polyphonic character detection and performs all processing locally in your browser — your text is never uploaded to any server, so your privacy is protected. It can process up to 50,000 characters at a time, enough for a full short story or a book chapter.
Contact us
If you have any suggestions, questions, or partnership ideas, please reach out at connorlin072@gmail.com
Privacy
All text processing happens locally in your browser; we do not store or upload what you type. The page may include third-party advertising (such as Google AdSense), which may use cookies to serve more relevant ads. Please read our Privacy Policy for details, and manage your preferences anytime via the "Cookie Settings" link at the bottom of the page.