Rebump

AI Email Composer

Effortlessly compose impactful emails with Hiwriter, the AI email composer powered by OpenAI's GPT-3.5.

Rebump screenshot

What does Rebump do?

What can Hiwriter GPT for Gmail do?

Hiwriter GPT for Gmail uses OpenAI’s GPT-3.5 to help you write emails quickly and accurately. Key capabilities include:

  • Auto email generation aligned with the topic and details you provide
  • Personalized emails by entering information about yourself and the recipient
  • Email reply generation that considers the context of the email thread
  • Style and tone selector to match your preferred voice
  • Translate feature to create emails in a language you understand and translate for your recipient
  • Edit drafts to refine wording
  • Regenerate to generate multiple variations
  • Mobile-optimized for use on phones and computers
  • Multi-language support for generating emails in many languages
  • Improve feature coming soon to enhance vocabulary, sentence structure, and clarity

How do I install and start using Hiwriter GPT for Gmail?

Hiwriter GPT for Gmail is available from the Workspace Marketplace. To get started:

  • Install it from the Workspace Marketplace (download the tool)
  • Refer to the User Guide for detailed installation instructions
  • In use, select an email topic, add details about yourself and the recipient, and choose the style and tone
  • Click Generate to produce the email draft
  • Optional: edit, translate, or regenerate to adjust the result

Is Hiwriter GPT for Gmail free to use?

Yes. Hiwriter GPT for Gmail is free to use and easy to access from your mobile phone or PC.

Last modified
May 25, 2026
Date listed
Aug 4, 2023