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The Best AI Email Editors of 2025: Top Tools to Supercharge Your Inbox

The Best AI Email Editors of 2025: Top Tools to Supercharge Your Inbox

Looking for the best AI email editor in 2025? Whether you're overwhelmed by unread messages or want to improve how your emails sound, AI-powered editors can help. These tools save time, make writing easier, and enhance your communication style, delivering relevant content tailored to your specific needs. In this guide, we review the best AI email editors with features designed to improve productivity, communication, and security, based on user feedback and integration with other apps.

Marking Criteria for the Best AI Email Editor Tools

We used seven clear points to compare each AI email editor, focusing on features and everyday use.

  1. AI Features – Evaluates how effectively the tool suggests replies, fixes grammar, adjusts tone, or provides ai-generated content like summaries, contributing to reduced human error.
  2. Workflow Integration – Assess how easily the tool connects with email apps like Gmail, Outlook, or Proton Mail for seamless team collaboration.
  3. User Efficiency – Measures time-saving benefits and inbox management capabilities, crucial for small teams operating on tight budgets.
  4. Privacy Standards – Checks if the tool protects data or supports sound encryption practices.
  5. Ease of Use – Determines how simple it is to set up and start using, enhancing the email writing process.
  6. Pricing & Value – Analyses if the cost aligns with provided features and supports cost-effective cold outreach.
  7. Market Reputation – Reviews what users say and how trusted the tool is.

1. Gemini for Gmail – The Best AI Email Editor for Google Users

Best for Google Workspace Users

Gemini is the natural companion for Google Workspace, including Gmail
  • AI Strength: Writes drafts, provides smart suggestions, and helps stay on tone by generating targeted content.
  • Platform: Compatible with Gmail, Google Docs, Calendar, and Drive.
  • Edge: Utilises live web info and Google data to refine replies.
  • Price: About A$33/month for individuals via Google One AI Premium; business plans range A$30–50/user/month.
  • Ideal for: Teams, schools, or anyone already using Google tools.
  • Bonus: Can create follow-ups and task lists directly from your inbox.
  • More info: Gemini in Google Workspace

2. Superhuman with Grammarly – A Fast AI Email Editor for Professionals

Best for Speed & Keyboard-First Workflows

Superhuman is built for speed, and for a keyboard-first experience
  • AI Strength: Facilitates replies in one tap, rewrites tone, and uses pre-made templates for streamlined communication.
  • Platform: Compatible with Gmail and Outlook.
  • Edge: Users handle over 70% more emails per hour.
  • Price: Around A$45/month for individuals; A$60/month for business users.
  • Ideal for: Busy professionals, founders, and sales teams.
  • Bonus: Grammarly AI aids in reducing errors and improving clarity.
  • More info: Superhuman

3. Shortwave – A Smart AI Email Editor for Search and Summaries

Best for Inbox Search & Summarisation

Shortwave launched in 2022, but a year after started integrating smart AI features.
  • AI Strength: Groups emails, presents summaries, and allows plain-language search.
  • Platform: Exclusively for Gmail, but highly effective.
  • Edge: Converts cluttered inboxes into organized task flows.
  • Price: Around A$12–13/month, with a free trial available.
  • Ideal for: Freelancers and teams handling numerous emails.
  • Bonus: Developed by former Google engineers, focusing on speed and design.
  • More info: Shortwave

4. Proton Scribe – The Most Secure AI Email Editor for Privacy

Best for Privacy-Conscious Users

Proton has a long history of privacy, and is now applying that to email AI
  • AI Strength: Can draft emails using either local or cloud AI, ensuring automated content remains secure.
  • Platform: Proton Mail.
  • Edge: Employs end-to-end encryption to safeguard data.
  • Price: Around A$4–5/month as an add-on; included free with Proton Duo and higher plans.
  • Ideal for: Lawyers, journalists, and privacy-focused individuals.
  • Bonus: Allows switching between local and cloud AI at any time.
  • More info: Proton Scribe

5. Microsoft Copilot Pro for Outlook – Enterprise-Ready AI Email Editor

Best for Business Communication

Copilot is available across the Microsoft 365 suite, not just for email
  • AI Strength: Assists with tone, suggests replies, and writes summaries, essential for enterprise-level document management.
  • Platform: Compatible with Outlook, Word, Teams, and Excel.
  • Edge: Ideal for secure business use and team workflows.
  • Price: A$33/month for individuals using Microsoft 365 Personal or Family.
  • Ideal for: Companies, remote teams, and professionals in law or finance.
  • Bonus: Also assists with documents, slides, and spreadsheets.
  • More info: Microsoft Copilot Pro

Visual Summary of the Best AI Email Editors

AI Email EditorBest ForPlatformKey FeaturesAU Price (approx)
GeminiGoogle UsersGmail/DocsSmart Drafts + Web SearchA$33/month
SuperhumanPower UsersGmail/OutlookFast AI Replies + Tone RewriteA$45–60/month
ShortwaveInbox ControlGmailSummarisation + Smart SearchA$12–13/month
Proton ScribePrivacy AdvocatesProton MailEncrypted AI DraftingA$4–5/month
Copilot ProEnterprise UseOutlook/M365Pro Writing + ComplianceA$33/month

Final Thoughts

Choosing the best AI email editor ultimately depends on your workflow and values. Consider:

  • For the fastest way to triage and reply to messages, Superhuman is unparalleled.
  • For intelligent thread management and minimal distraction, Shortwave is highly effective.
  • If data security is your top concern, Proton Scribe offers unique privacy-first AI features.
  • Teams already working in Gmail or Outlook will find Gemini and Copilot Pro logical extensions of their daily tools.

Email remains a pivotal component of professional life—AI is simply making it more efficient. Whichever editor you choose, adopting one of these tools could significantly reduce your cognitive load and enhance your communication quality in 2025 and beyond.

Need Guidance? We Can Help!

Implementing anything organisation-wide can be tough. If you need guidance on integrating any of these editors into your team’s workflow, reach out to FONSEKA today - we’d love to help!

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Author: Nipuna Fonseka

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Updated: 22 Aug 2025

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