• Philosophy: Self-directed learning over automated streaks.
  • Free for Launch: Full access to all features during initial release. No ads, no tracking, no hidden upsells.
  • 100% Private: All flashcards and settings are stored purely on your local device. No user data is ever transmitted to external servers.
  • Institutions & Universities: Educational departments interested in bulk licensing or site deployment can reach out directly via the Support page.
Pīnyīn Explorer Icon

Pīnyīn Explorer

A thoughtfully designed Pīnyīn-first Chinese–English dictionary for exploring the structure of Mandarin vocabulary. Includes 114,000+ entries, cascading multi-column layouts, adjustable dictionary scopes (HSK 3.0 or frequency-based), a classic 5-box Leitner flashcard system, and a quiz system with pedagogically structured learning progressions for 365 core anchor words.

Download on the Mac App Store
Pīnyīn A-Z Soundboard Icon

Pīnyīn A-Z Soundboard

Speak Mandarin from day one. The complete monosyllabic, phonotactic, and morphemic inventory of modern Mandarin. The ultimate Pīnyīn chart featuring 2,000+ native recordings, pitch visualizer, keyboard navigation, autoplay, as well as extensive search, sorting, and filtering options.

Download on the Mac App Store
Peekaboo Reader Icon

Peekaboo Reader

A plain-text reading environment with adjustable Pīnyīn visibility. Paste Chinese characters directly into the Peekaboo Reader and the built-in engine automatically converts text into Pīnyīn sentences following official GB/T 16159-2012 orthographic standards. Podcast and TV drama subtitles, web novels, sci-fi, romance, wuxia, lifestyle stories… drop in anything you actually want to read.

Download on the Mac App Store

Download Other Resources

Kindle: Chinese Pīnyīn to English Dictionary Icon

Kindle: Chinese Pīnyīn to English Dictionary

A Pīnyīn-only to English dictionary for Kindle. Over 123,500 entries with tone-marked headwords, designed for reading Chinese texts written entirely in Hànyǔ Pīnyīn.

Get it on Gumroad