Free · Offline · Open Source

Learn Chinese with
Free Browser Tools

5 tools built by someone who lives in China and knows what actually helps learners go from beginner to fluent. No login, no install — open and start.

5
Free Tools
2,500+
Characters in Pinyin Dict
20
Chengyu Stories
10
Historical Reading Texts
400+
HSK Vocabulary Words
🛠 All Tools
Click any card to open the tool. All tools work in your browser — no app to install, no account required. Progress is saved locally.
🔤
Pinyin Annotator
拼音标注器
All levels Reading aid 2,500+ chars
Paste any Chinese text — pinyin appears above every character instantly. Four-tone color coding (red/orange/green/purple), HSK level highlight, click any character for details. The fastest way to read Chinese you don't know yet.
Try It Free → ⭐ GitHub
📖
Chinese Reading Lab
历史阅读理解
HSK 4–6 Reading 10 stories
10 real historical decisions told in Chinese. Mandela in prison, Jobs getting fired, Musk betting everything on Tesla. Make the decision before you see the result, then answer 3 comprehension questions. Click any word for instant pinyin + meaning popup.
Start Reading → ⭐ GitHub
🐉
Chengyu Stories
成语故事
HSK 4–6 Idioms 20 stories
20 classic 成语 — 4-character idioms used constantly in modern Chinese. Learn each idiom through its 2,000-year-old origin story in Chinese (with pinyin popup), then test yourself: given a modern real-world scenario, pick the right idiom from 4 options.
Learn Idioms → ⭐ GitHub
🃏
Mandarin Flashcards
汉语词汇卡片
HSK 1–3 Vocabulary 400+ words
400+ HSK1–3 words with spaced-repetition flashcards. Filter by level, click characters for pinyin popup. Includes a story reader — English paragraph first, tap to reveal the Chinese. Good for learning the 1,200 characters you need for daily conversation.
Start Drilling → ⭐ GitHub
✍️
Chinese Writing Toolkit
汉语写作工具
HSK 4–6 Writing 11 types
Model essays and sentence banks for 11 types of Chinese writing: invitation letters, thank-you notes, complaint letters, cover letters, self-introduction, and more. 13 grammar patterns, a vocabulary upgrade table, and a practice pad. Built for the HSK writing section.
Open Toolkit → ⭐ GitHub
📊 What Each Tool Covers
Match the tool to where you are in your Chinese learning journey.
Skill / Need Pinyin Annotator Reading Lab Chengyu Flashcards Writing
Read unknown Chinese text✓ Best choice––––
Comprehension practice–✓ 10 stories✓ 20 stories––
Vocabulary building✓ 2,500 chars✓ 6/story✓ 5/story✓ 400+ HSK✓ patterns
Tone practice✓ Color-coded✓ Popup✓ Popup✓ Popup–
Cultural context–✓ History✓ Ancient tales––
Writing practice––––✓ 11 types
Exam prep (HSK)✓ Level tags✓ HSK4–6✓ HSK4–6✓ HSK1–3✓ Writing
Best for levelAll levelsIntermediate+Intermediate+Beginner–Int.Intermediate+
🙋 Who Built These?
🇨🇳

An ordinary guy living in China

I'm Tim. I live in China, speak Chinese daily, and build tools I wish existed when I was learning. These aren't sponsored or affiliated with any app — they're just free HTML files that do one thing well. I write about what I build at ordinarymantrying.com. If a tool helped you, a ⭐ on GitHub helps other learners find it.