Online Word Editor

QuillBot is an AI writing suite best known for its paraphrasing tool. Users paste or type text and have it rewritten in different tones and styles, while companion tools handle grammar checking, summarizing, citations, plagiarism checks and AI content detection. It is widely used by students, writers and professionals.

專項更強一站式線上 PDF 編輯器，內建 AI 助手協助閱讀、摘要與生成文件

專項更強Revise is a free AI document editor that runs in the browser. It opens DOCX, PDF, RTF, ODT, and Markdown files with formatting, comments, and tracked changes intact, and adds an AI agent that can proofread, rewrite, reformat, translate, or revise an entire document from a prompt. Every AI change arrives as a tracked edit or comment you approve or reject, and documents can be shared for real-time collaboration.

Wordtune is an AI writing assistant from AI21 Labs that rewrites and tightens your sentences in one click, checks grammar, sums up documents and translates other languages into natural English.

支援 100 多種語言的文字、圖片、文件與語音 AI 翻譯

支援七種改寫模式的免費 AI 改寫工具

專項更強跨裝置的免費 AI PDF 編輯、轉換與閱讀工具

專項更強免費的一站式 AI 寫作與文字優化工具箱

專項更強用可讀性與文法回饋，寫出更清晰有力的文字

專項更強企業級神經機器翻譯、AI 寫作潤飾，以及涵蓋三十多種全球語言的即時語音翻譯。

Type.ai is an AI writing assistant and full document editor for long-form creative writing, built for authors, novelists and screenwriters who need to draft and revise book-length work in one place.

金山辦公旗下寫作、簡報、文件與試算表的 AI 助手