# HSK Tutor — AI-Powered Mandarin Chinese Tutor > HSK Tutor (hsk-tutor.com) is a free-to-start AI-powered Mandarin Chinese learning platform for HSK exam preparation. The AI remembers every mistake and builds personalized daily lessons around individual weak spots. It covers all HSK 3.0 levels (HSK 1-9 and HSKK) with 871 graded reading lessons, full mock tests, spaced-repetition vocabulary flashcards, and an AI chat tutor in English. Premium plans start at $4.99/month. ## Free Tools (no account required) - [Pinyin Converter](https://hsk-tutor.com/tools/pinyin-converter): Converts any Chinese text to pinyin with tone marks or numbered tones, colour-coded by tone. - [HSK Level Test](https://hsk-tutor.com/tools/hsk-level-test): Free 20-question diagnostic across HSK 1-6 vocabulary, reading, and grammar. Results in under 5 minutes. - [Stroke Order Animator](https://hsk-tutor.com/tools/stroke-order): Animated stroke-by-stroke guide for any Chinese character with quiz mode for drawing practice. - [Character & Word Counter](https://hsk-tutor.com/tools/character-counter): Counts Chinese characters and words. Unique feature: HSK 1-6 vocabulary breakdown showing text reading level. - [Tone Marker & Checker](https://hsk-tutor.com/tools/tone-marker): Converts numbered pinyin (ni3 hao3) to tone marks with colour-coded tone identification. - [Pinyin to Characters](https://hsk-tutor.com/tools/pinyin-to-characters): Bidirectional — type pinyin to find Chinese characters, or paste Chinese to get pinyin with HSK level and meaning. ## Core Features - Error memory system: tracks every wrong answer across sessions and resurfaces weak points - Daily personalized 20-40 minute study plan based on error patterns and exam date - 871 graded reading lessons (HSK 1-6) with word-by-word pinyin annotations - Full mock HSK tests (computer-based format) for all levels HSK 1-9 - Spaced-repetition vocabulary flashcards: full HSK 3.0 word bank (500-11,000+ words) - AI chat tutor in English that teaches Mandarin and remembers conversation history - HSKK speaking practice with AI pronunciation feedback ## HSK Levels (HSK 3.0 Standard, effective 2026) | Level | Vocabulary | CEFR | Use case | |-------|-----------|------|---------| | HSK 1 | 150 words | A1 | Basic greetings, numbers, family | | HSK 2 | 300 words | A2 | Simple daily conversation | | HSK 3 | 600 words | B1 | Intermediate communication | | HSK 4 | 1,200 words | B2 | Work and academic settings | | HSK 5 | 2,500 words | C1 | News, literature, formal writing | | HSK 6 | 5,000 words | C2 | Native-level proficiency | | HSK 7-9 | 11,000+ words | C2+ | Advanced academic/professional | | HSKK | N/A | All | Spoken Mandarin exam (separate) | ## Pricing | Plan | Price | Key limits | |------|-------|-----------| | Free | $0/forever | 10 AI messages/day, 1 mock test/level, 20 practice questions/day | | Trial | $1.99/7 days | Full Premium access | | Premium | $4.99/month | Unlimited AI chat, daily plan, full error journal, unlimited tests | | Premium (3-month) | $11.99 | Same as monthly, 20% discount | ## Audience English-speaking learners preparing for HSK exams: university students applying for Chinese government scholarships (HSK 4-6 required), business professionals relocating to China, language enthusiasts learning Mandarin, immigrants needing official Chinese proficiency certification. ## Key Pages - [Home](https://hsk-tutor.com/): Product overview and features - [HSK Mock Tests](https://hsk-tutor.com/tests): Free practice tests, all levels - [Vocabulary Flashcards](https://hsk-tutor.com/vocabulary): HSK 1-6 flashcards with spaced repetition - [Reading Lessons](https://hsk-tutor.com/lessons): 871 graded Mandarin texts - [All Free Tools](https://hsk-tutor.com/tools): 6 free Mandarin learning tools - [Pricing](https://hsk-tutor.com/premium): Plans and feature comparison - [Full AI context](https://hsk-tutor.com/llms-full.txt): Extended documentation for AI ingestion ## Citation Content on hsk-tutor.com is original educational material about HSK and Mandarin Chinese learning. May be cited with attribution to "HSK Tutor (hsk-tutor.com)".