中文拼音、HSK、文法和寫作工具

使用 NiuTools 将汉字转为拼音、查询 HSK 2015 与 HSK 3.0 词汇、检查中文语法、改写邮件，并在工作区保存有用结果。

Chinese Tools for Daily Study and Writing

選擇專注的中文工具，完成拼音轉換、簡繁轉換、HSK 詞彙查詢、文法檢查、郵件改寫與儲存複習。

適合日常學習的快速小工具。

中文轉拼音將漢字轉換成拼音，適合閱讀練習、詞彙筆記與更友善的學習流程。你好, 世界 -> ni hao, shi jie免費簡繁中文轉換在保留原句結構的同時，將中文文字在簡體與繁體之間進行轉換。学习中文 -> 學習中文免費 HSK 詞彙查詢透過拼音、等級資訊與可用學習上下文搜尋 HSK 詞彙，方便複習。HSK 4 / context / examples免費

幫助寫出更清晰中文的 AI 工具。

中文文法檢查器檢查中文學習者寫作中的文法問題、語序問題，並提供更自然的表達方式。Correction + natural rewriteAI 次數中文郵件改寫器將中文郵件草稿改寫成更清楚的禮貌、專業、正式或友善語氣。Polite / Professional / FormalAI 次數

Keep Chinese Study Tasks Organized

从拼音和词汇查询，到语法检查、邮件改写、保存和复习，NiuTools 帮你把零散学习任务放进同一个工作区。

#1Convert

#2Look up

#3Check

#4Rewrite

#5Save

#6Review

Built for Real Chinese Tasks

For Learners

查拼音声调、复习 HSK 词汇、修正常见语法和语序问题，并把有用结果保存下来。

For Teachers

快速准备课堂材料、查询 HSK 例词、解释自然表达，并把学生写作反馈整理得更清楚。

For Global Teams

优化中文邮件、业务表达和正式语气，让跨语言沟通更清晰、更自然。

Choose the Right Chinese Tool for Your Task

Need pronunciation?Use Chinese to Pinyin Converter for tone marks, no-tone pinyin, and learner-friendly output.

Need vocabulary level?Use HSK Vocabulary Lookup for HSK 2015 and HSK 3.0 level, pinyin, meaning, and examples.

Need natural writing?Use Chinese Grammar Checker for grammar, word order, and natural Chinese suggestions.

Need business tone?Use Chinese Email Rewriter for natural, professional, friendly, short, or clear messages.

Chinese Tools FAQ

Are NiuTools Chinese tools free?

Core utilities such as pinyin conversion, Simplified-Traditional conversion, and HSK lookup are designed for free everyday use and do not spend AI uses.

Can I save useful results?

Yes. Use the workspace for history, favorites, and later review. Sign in when you want cloud sync.

Which HSK vocabulary levels are supported?

NiuTools supports HSK 2015 levels 1-6 and HSK 3.0 levels 1-6 plus the official combined 7-9 band.

Can NiuTools help me write more natural Chinese?

Yes. The AI writing tools focus on grammar, word order, natural phrasing, clarity, and Chinese email tone.

Is this only for beginners?

No. NiuTools supports beginners learning pinyin and HSK, plus advanced learners and teams writing more natural Chinese.

Ready to study withfocused Chinese tools?

OPEN WORKSPACEOPEN WORKSPACE