句式 Sentence Patterns
You learned the vocab but struggle to make sentences?
Jushi teaches you the most essential patterns of real spoken Mandarin.
听听 Tone Trainer
You struggle with remembering tones and correct pronunciation?
TingTing teaches you tones and vocab, trains your ears and pronunciation.
句 Phrase Loop
Chinese words do all sound the same to you? Phrase Loop teaches your ears and brain to distinguish words and tones by level-appropriate immersion.
Discover →说说 Learn Chinese
Learn Chinese from beginner to fluent using our own methodology, from first words to real conversations.
Coming soon3M Read and Type Chinese
Use science and mnemonics to learn, memorize and use Chinese characters efficiently.
Coming soonTools
Dictionary
Look up Chinese words, pinyin and meanings.
Try it →Decomposition
See how characters are built and written, stroke by stroke.
Try it →Sentence Checker / Translator
Translate English into natural Chinese or correct your own Chinese sentences, in the tone you need, and see why.
Try it →HSK Sentence Grader
Check your Chinese sentences against HSK 3.0 (2025) and HSK 2.0 vocabulary.
Try it →Segmenter
Segment Chinese text at word boundaries.
Try it →Hanzi → Pinyin
Convert hanzi to pinyin.
Try it →Simplified ↔ Traditional
Convert between simplified and traditional characters.
Try it →Downloads
Download our vocabulary reference sheets as PDF, CSV or JSON. Per-level lists contain newly introduced vocabulary, not cumulative lists.
HSK 3.0 (2025)
Official HSK 3.0 (2025) syllabus · PDF
11,000 syllabus entries, including distinct readings and senses.
HSK 3.0 (2025) · All levels · PDFHSK 3.0 (2025) · All levels · CSVHSK 3.0 (2025) · All levels · JSON
| HSK 1 | 300 | CSV | JSON | |
|---|---|---|---|---|
| HSK 2 | 200 | CSV | JSON | |
| HSK 3 | 500 | CSV | JSON | |
| HSK 4 | 1,000 | CSV | JSON | |
| HSK 5 | 1,600 | CSV | JSON | |
| HSK 6 | 1,800 | CSV | JSON | |
| HSK 7-9 | 5,600 | CSV | JSON |
Our PDFs are vocabulary references prepared by DouDou Chinese, not official examination documents. Sources and reuse details.
HSK 2.0
4,991 word spellings from our HSK 2.0 source, grouped by their first recorded level. Duplicate spellings are combined.
HSK 2.0 · All levels · PDFHSK 2.0 · All levels · CSVHSK 2.0 · All levels · JSON
| HSK 1 | 150 | CSV | JSON | |
|---|---|---|---|---|
| HSK 2 | 147 | CSV | JSON | |
| HSK 3 | 298 | CSV | JSON | |
| HSK 4 | 598 | CSV | JSON | |
| HSK 5 | 1,298 | CSV | JSON | |
| HSK 6 | 2,500 | CSV | JSON |
Our PDFs are vocabulary references prepared by DouDou Chinese, not official examination documents. Sources and reuse details.
Word and character frequency
63,175 words and 8,587 characters ranked by how often they occur per million, from wordfreq: a snapshot of language up to about 2021. The word PDF lists the top 10,000 words.
Words · Top 10,000 · PDFWords · All · CSVWords · All · JSON
Characters · All · PDFCharacters · All · CSVCharacters · All · JSON
Word frequencies from wordfreq by Robyn Speer, drawing on Wikipedia, OpenSubtitles, SUBTLEX-CH by Qing Cai and Marc Brysbaert (SUBTLEX is freely available data), Google Books Ngrams, news, web text, Twitter and the Jieba word list. Limited to words in our dictionary. License: CC BY-SA 4.0. Sources and reuse details.
More frequency lists from their publishers:
Mandarin sentences and recordings
Tatoeba downloadsAISHELL-3 downloadsAISHELL-1 downloadsGraded sentences & AISHELL-3 MP3s
AISHELL recordings use Apache 2.0. Tatoeba sentence text uses CC BY 2.0 FR; its recordings have separate contributor licenses.
About Us
We started DouDou-Chinese out of frustration about the Chinese language learning app landscape. The tedious work of maintaining clean Anki decks, sentence mining and finding level appropriate audio input got too time consuming and was too hard to automate. So we built our own tooling to improve learning efficiency.
We decided to polish and publish the tools we build along the beautifully painful and never ending journey of learning Mandarin. And we also developed some of the apps that we wish existed when I started learning, and we use them daily.
We have a professional background in Software Engineering and designing Digital Learning workflows and curriculums. And we suffer from AI slop language learning app fatigue like you do.
If you are interested in more info about us and the motivation on learning Mandarin, check out our blog.
Thanks for visiting us here! :)
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