Grammarly

Where it runs

• Web
• Browser extension
• Windows
• macOS
• iOS
• Android

Tags

• #grammar
• #editing
• #tone
• #writing-assistant

• View Lex details

  WritingFREEMIUM

  LE

  Lex

  Lex

  AI-native collaborative document editor for serious writers.

  Lex is a clean, Google-Docs-style word processor with AI editing built in — feedback, brainstorming, rewriting, and AI commands alongside real-time collaboration and version history. It targets writers who want frontier models inside a focused writing surface rather than a chat sidebar.

  AI insight: Founded by Nathan Baschez (Every/Substack lineage), it lets writers pick among premium models like Claude Opus/Sonnet and GPT in the doc.

  • writing
  • document-editor
  • collaboration
  • drafting

  Open
• View ProWritingAid details

  WritingFREEMIUM

  PR

  ProWritingAid

  ProWritingAid

  Style and grammar editor with manuscript-level feedback for authors.

  ProWritingAid goes beyond grammar to analyze pacing, sentence variety, dialogue tags, and readability, plus AI-driven manuscript critique, beta-reader simulation, and story analysis. It integrates into Word, Google Docs, Scrivener, and browsers, aimed at long-form and fiction writers.

  AI insight: Its reports target craft signals fiction writers care about — pacing, sensory detail, dialogue tags — not rivals' business-copy framing.

  • editing
  • style
  • fiction
  • manuscript

  Open
• View QuillBot details

  WritingFREEMIUM

  QU

  QuillBot

  Learneo

  Paraphrasing, grammar, and summarizing suite used by 35M+ writers.

  QuillBot is a writing suite centered on paraphrasing, grammar checking, and summarizing, with added tools for citation, plagiarism and AI detection, and translation. It runs on the web, as browser extensions and a Word add-in, and on desktop and mobile, widely used by students and professionals.

  AI insight: A Learneo (formerly Course Hero) business, sitting alongside Course Hero and Scribbr — which is why its tooling skews toward students.

  • paraphrasing
  • grammar
  • summarizing
  • students

  Open
• View Rytr details

  WritingFREEMIUM

  RY

  Rytr

  Rytr

  Budget AI writing assistant with 40+ templates and tone matching.

  Rytr generates short-form content across 40+ use cases like emails, ad copy, and social captions, and can mirror a sample of your writing to match tone. It includes grammar checking, plagiarism checks, and a Chrome extension, positioned as a low-cost entry point to AI copywriting.

  AI insight: It competes mainly on price — an entry paid tier well under most rivals — trading depth for an inexpensive unlimited-generation plan.

  • copywriting
  • short-form
  • templates
  • budget

  Open
• View Sudowrite details

  WritingPAID

  SU

  Sudowrite

  Sudowrite

  AI writing partner built specifically for fiction and novelists.

  Sudowrite is an AI writing tool aimed at fiction authors, with a Story Bible for outlining, Write/Expand/Describe tools that draft in the author's voice, and a Canvas for plotting arcs and themes. Unlike general assistants, it is tuned for long-form creative narrative rather than business or marketing copy.

  AI insight: Its Story Bible feeds characters, worldbuilding, and outline into every generation, so drafts stay consistent across a novel.

  • fiction
  • creative-writing
  • novel
  • storytelling

  Open
• View Wordtune details

  WritingFREEMIUM

  WO

  Wordtune

  AI21 Labs

  AI rewriting and paraphrasing assistant from AI21 Labs.

  Wordtune rewrites and paraphrases sentences with tone control, plus grammar correction, summarization of articles and videos, and a humanizer for AI-sounding text. It runs as a browser extension, web app, and iOS app, and integrates into tools like Gmail and Slack.

  AI insight: The consumer writing product of AI21 Labs, maker of the Jurassic and Jamba LLM families — rare among writing tools in owning its models.

  • paraphrasing
  • rewriting
  • summarization
  • editing

  Open