What is inside
- 21 initials, 3 medials and 13 finals
- Hanyu Pinyin and broad IPA correspondences
- Traditional Chinese example characters and meanings
- Text-first EPUB navigation, web editions and manifest JSON files
EPUB 3.3 · English + Traditional Chinese · OPDS · CC BY 4.0
Free Bopomofo EPUB 3.3 - All 37 Zhuyin Symbols
Download a compact offline reference, read the matching web edition, or download the open catalog files for testing with compatible tools.
Download or read
Both editions contain the same 37-symbol reference. Choose the reading language, or use the online edition when an EPUB reader does not render Bopomofo reliably.
Downloadable catalog files
The OPDS 2.0 JSON and OPDS 1.2 Atom files list both open-access EPUB editions with byte lengths and SHA-256 checksums.
Compatibility boundary
EPUB 3 and Bopomofo font support differ across reading systems. Check navigation and glyph rendering in the target reader. The online edition remains available as a fallback. This static host may return generic JSON or XML HTTP Content-Types, so catalog clients that require exact OPDS or WebPub media types may need direct file import.
Accessibility boundary
The publication declares textual access modes, structural navigation and no flashing, motion-simulation or sound hazards. It does not claim WCAG or EPUB Accessibility certification.
Standards and source data
License and independence
The EPUB files, web editions, manifest JSON and catalog files are CC BY 4.0. They contain no App Store link, app identifier, account code, analytics or tracking.
CC BY 4.0SHA-256 metadata · 2026-07-11
Optional activity layer
Lumi Bopomofo adds short on-device activities. The open book remains free, readable and reusable without the app.
View Lumi Bopomofo on the App Store →