Grammarly 每月有 58,867,412 次造訪，月增率 -1.5%，定價模式為免費增值。Outwrite 每月有 23,167 次造訪，成長率 -16.8%，定價模式為免費增值。
提供即時文法糾錯、語氣校準、寫作來源追蹤與團隊風格指南的跨平台 AI 寫作助理。
| 面向／指標 | |  |
|---|---|---|
| 官方網域 | grammarly.com | outwrite.com |
| 定價模式 | 免費增值 | 免費增值 |
| 每月造訪次數 | 5886.74萬 (58,867,412) | 2.32萬 (23,167) |
| 月流量變化量 | -91.61萬 (-1.5%) | -4678 (-16.8%) |
| 主要市場與市佔 | 🇺🇸 美國 (51.9%) | 🇸🇬 新加坡 (26.8%) |
| 每月直接造訪 | 2539.87萬 | 1.37萬 |
| 使用者評分 | 4.4 | 3.7 |
| 支援平台 | 網站 | 網站 |
提供即時文法糾錯、語氣校準、寫作來源追蹤與團隊風格指南的跨平台 AI 寫作助理。
在 Chrome、Safari、Firefox、Edge、Windows、Mac、Google Docs、MS Office 與行動鍵盤中原生運行，標出文法錯誤、重寫繞口句子，並將語氣轉向自信、共情或高階主管口吻。
部署具上下文感知的 AI 代理，預測目標受眾會如何反應草稿、定位可信的支撐引文、依評分規準批改文章，並在 Pro 方案下每月使用最多 2,000 次提示生成草稿。
對照數十億網頁與學術資料庫掃描文字以找出無意抄襲，識別 AI 生成的段落，並透過 Google Docs 與 Word 中的 Authorship 報告透明記錄文件來源。
讓 Pro 與 Enterprise 方案的團隊能夠固化公司術語、禁用過時行話、強制使用包容性語言、插入共享片段，並在行內顯示公司內部定義。
在你打字的每個地方，寫出影響力
在你書寫時即時找出並修正拼字、文法與標點錯誤。
以超越單純修正的改寫，改善句子流暢度與整體品質。
在保留語意的情況下，把句子改得更短、更長或換個說法。
把被動結構改為主動，使文章更直接、更好讀。
專項更強Outstanding for context-aware translation and professional writing refinement, but not designed as a dedicated grammar checker.
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.
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.
結合同儕級學術校對、抄襲比對與 AI 寫作工具
提供強大的跨應用程式多語言文法與風格檢查，但進階生成式 AI 功能較少。
ProWritingAid is a writing platform that combines line-level grammar and style checking with planning, manuscript analysis and story critique tools aimed at novelists, students and professional writers.
ProWritingAid is a writing platform that combines line-level grammar and style checking with planning, manuscript analysis and story critique tools aimed at novelists, students and professional writers.
專項更強Paperpal is an AI writing assistant built for researchers, academics, and students. It proofreads and rewrites academic prose in real time, suggests citations, checks references, and reads PDFs — all from inside Microsoft Word, Google Docs, Overleaf, the Chrome extension, or the web editor.
專項更強Paperpal is an AI writing assistant built for researchers, academics, and students. It proofreads and rewrites academic prose in real time, suggests citations, checks references, and reads PDFs — all from inside Microsoft Word, Google Docs, Overleaf, the Chrome extension, or the web editor.
用可讀性與文法回饋，寫出更清晰有力的文字
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.
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.
具備自動補全、研究與 Chrome 擴充功能的 AI 寫作助手
用於改寫、人性化與去除抄襲的西班牙語 AI 改寫工具
Trinka is a privacy-first AI writing assistant built for academic and technical writing. Beyond grammar, it handles paraphrasing, consistency checks, file proofreading for Word and LaTeX, citation formatting and quality checks, plagiarism and AI detection, journal finding, and translation across 30+ languages.
Trinka is a privacy-first AI writing assistant built for academic and technical writing. Beyond grammar, it handles paraphrasing, consistency checks, file proofreading for Word and LaTeX, citation formatting and quality checks, plagiarism and AI detection, journal finding, and translation across 30+ languages.
提供類似的行內文法修正與片語快捷功能，但瀏覽器擴充功能與整合的生態系較小。
