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Compose.ai

Draft text and autocomplete sentences in supported writing tools with Compose.ai’s Chrome extension.

Pricing
Free extension with optional premium features; current premium rates not publicly verified
Free plan
Yes; free Chrome extension
Platforms
Chrome browser on desktop

Tool Information

Compose.ai
Compose AI, Inc.
Updated: September 2026
Tool type: AI Browser Writing Assistant
Pricing: Free extension with optional premium features; current premium rates not publicly verified
Free plan: Yes; free Chrome extension
Platforms: Chrome browser on desktop
Login required: Yes; account or company onboarding required
API: No public developer API verified
Browser extension: Yes; official Chrome writing extension
Mobile app: No official native mobile app verified
AI models: Underlying language-model versions not publicly specified
Developer: Compose AI, Inc.

About Compose.ai

Compose.ai is a browser writing assistant built around generating text and suggesting sentence completions where people already write. The official product describes a Chrome extension for email, documents and chat, with a free version and optional premium personalisation features. It is intended to reduce repetitive typing without moving every short writing task into a separate editor.

Suggestions in the writing workflow

Autocomplete proposes text as a sentence develops. The user decides whether a suggestion fits the message and can continue writing normally when it does not. Compose.ai also describes learning a person’s writing style to offer more relevant phrases. That positioning is most useful for recurring communication patterns, such as introductions, explanations and follow-up messages, where context and tone matter as much as speed.

The company’s feature material includes prompt-based text generation, rephrasing and email replies. It names Google Docs and Gmail for the compose workflow. Users should check the extension’s current supported sites rather than assume every website or every rich-text editor behaves identically. A browser integration can be convenient while still depending on the input field and the permissions available on a particular page.

Using generated drafts carefully

The assistant can provide a starting point for an email, a document passage or a short piece of website copy. Rephrasing is helpful when the meaning is already known but the wording needs work. Generated language is not independent research, however. Names, dates, product claims and commitments should be checked against the information the writer actually intends to communicate.

Compose.ai says the extension is free to use and that a premium version adds advanced functionality, including some personalisation. A current numerical premium price was not verified on the reviewed official page. Teams should inspect the plan and extension permissions before enabling it for confidential correspondence.

A practical starting point

Begin with a non-sensitive draft in a supported application. Try a few completions, compare rephrased alternatives and keep only wording that preserves the intended meaning. Review the whole message before sending, especially where a generated reply might imply a promise or omit an important condition.

Key features
  • Autocomplete sentences while typing.
  • Generate draft text from prompts.
  • Suggest personalised writing phrases.
  • Rephrase selected wording.
  • Prepare email reply drafts.
  • Work within supported browser writing tools.
Use cases
Email drafting,Sentence rephrasing,Document drafting,Repetitive communication,Website copy drafts
How to use
  1. Visit the official Compose.ai website.
  2. Follow its extension installation guidance.
  3. Review the requested browser permissions.
  4. Sign in if required by the current workflow.
  5. Open a supported writing application.
  6. Write a draft or provide a clear prompt.
  7. Accept only relevant suggestions and edit the result.
  8. Check facts and tone before sending or publishing.
Best for
Email Writers, Content Teams, Everyday Browser Users
Integrations
Chrome extension; Google Docs and Gmail named in official feature material
Commercial use
Business writing subject to service terms and permission to process the supplied text

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