Free Spellcheck and Grammar Checker
Catch typos with a local English dictionary. 100% 在浏览器本地处理。绝对隐私，零上传——文件不会离开此设备。
Spellcheck flags typos, common grammar slips, and repeated words using a dictionary in the browser. Your writing is not sent to a grammar service.
It misses tone, names, and context. Read the draft yourself before you send it.
Questions
Is this an online grammar API?
No. The dictionary loads into this browser. The text is not uploaded.
Will it fix every sentence?
No. It marks common mistakes. It is not a full editor.