The 9 Best AI Email Assistants For 2025

I tools take the time, stress, and mental energy out of email management. Instead of a manual, menial chore, they automate the daily tasks of replying to emails, sorting your inbox, and summarizing email threads.

In 2025, email tools have evolved further. They are replete with various innovative, useful features and robust new options. However, these new features come with their own set of challenges.

How do you decide which one to use and for which tasks?

Some AI email tools are super apps that handle everything from prioritizing, sorting, replying, and generating emails. Others are more niche and designed for specific users and tasks.

This article will explain how to:

• Understand the unique strengths of the best AI email tools.

• Compare features and pricing to make an informed choice.

• Find the right tool to transform how you manage emails in 2025.

Let’s dive in and explore the AI email tools that are reshaping communication and boosting productivity in 2025.

What Does AI Bring to Email?

AI offers a lot more than just text generation. Of course, having a tool to write your emails is helpful, but this barely scratches the surface of what this technology can do. Not to mention what will emerge in the near future.

AI pushes boundaries, improving, speeding up, and making the email workflow more analytical. The technology doesn’t just assist; it revamps the entire process, from prioritizing important emails to extracting actionable insights from threads and automating responses.

Here’s what modern AI tools can do beyond just writing emails:

• Analyze content: AI can process emails for sentiment, tone, and intent, helping you gauge urgency or tailor responses accordingly.

• Automate organization: Sort emails into categories, prioritize them by importance, and even forward them to relevant recipients.

• Summarize threads: Condense long email chains into clear, actionable summaries to save time and boost clarity.

• Extract data: AI can pull details like contact information, dates, or invoices from emails and enrich them with insights from CRMs or public data sources.

• Collaborate intelligently: Share email context or summaries with teammates, ensuring everyone is aligned without wasting time explaining.

The best part? These capabilities aren’t standalone; they work together. Imagine an AI that reads your emails, identifies key points, drafts tailored replies, and prioritizes what you need to handle first.

Looking ahead, AI tools will become even more intuitive, seamlessly integrating into broader workflows, predicting actions you need to take, and offering smarter, real-time collaboration capabilities. This isn’t just about automating a thank-you email; it’s about reimagining the possibilities of what email can do.

What Makes the Best AI Email Assistant Software?

So, with that in mind, here’s what qualifies an AI email assistant for this list:

1. Intuitive design: A great tool should be easy to use and require minimal setup, making it accessible to everyone.
2. Maximized capabilities: It should go beyond basic email drafting to include features like prioritization, data extraction, and advanced analytics.
3. Affordability: The tool must provide value for its cost, saving time and resources while delivering measurable benefits.
4. Integrations: Seamless compatibility with email clients, CRMs, calendars, and other productivity tools is crucial.
5. User-friendliness: Features like contextual suggestions and smart automation should feel like enhancements, not added complexity.
6. Security: Protecting sensitive data is non-negotiable. The best tools prioritize robust encryption and privacy protocols.
7. Adaptability: Whether you’re a solo professional or part of a large team, the tool should scale to fit your needs.

The tools featured in this list combine these qualities, offering innovative, user-friendly solutions that redefine how you manage emails. With this foundation, let’s dive into the top AI email tools of 2025.

9 Best AI Email Assistants for 2025

1. Spike

Best for professionals seeking an all-in-one communication hub (Web, iOS, Android, macOS, Windows)

Spike is the top choice for professionals looking to consolidate email, chat, calls, and collaboration tools into one intuitive platform. Its conversational email format transforms traditional email threads into chat-like conversations, reducing formality and making communication faster and more natural.

Spike integrates additional productivity tools, such as real-time document editing, note-taking, and task management, making it the most comprehensive solution for what it does.

Key features:

• Conversational email: Converts emails into chat-like interactions for quicker, more natural communication.

• Email AI: Assists in drafting emails, suggesting replies, and summarizing long threads.

• Priority inbox: Automatically surfaces the most important messages to keep users focused.

• Collaborative tools: Includes shared notes, tasks, and group chats.

• Integrated video and audio calls: Enables seamless transitions from email to voice or video communication.

Appraisal:

Spike is unmatched for those seeking an all-in-one communication solution. Users appreciated its ability to centralize workflows and eliminate the need for multiple apps. While its interface might require adjustment for users accustomed to traditional email clients, its features provide clear productivity gains for individuals and teams.

Pricing:

• Free: Supports up to 2 email accounts with basic features.

• Pro plan: $5/month per user for up to 3 accounts and advanced features.

• Business plan: Custom pricing for larger teams with additional tools and support.

2. Shortwave

Best for Gmail users seeking AI-powered email organization (Web, iOS, Android)

Shortwave is the ideal tool for Gmail users overwhelmed by cluttered inboxes. Designed to optimize Gmail’s capabilities, Shortwave uses AI-powered prioritization and organization features to streamline workflows.

Its clean interface and collaborative tools make it an excellent solution for individuals and teams looking to simplify email management.

Key features:

• AI-powered prioritization: Highlights critical emails and filters less important ones for better focus.

• Thread grouping: Organizes related emails into unified threads, reducing inbox chaos.

• Focus mode: Displays only high-priority emails during work sessions to eliminate distractions.

• Real-time collaboration: Enables shared inboxes, task assignments, and in-thread comments for team efficiency.

• Integrated to-do lists: Converts emails into actionable tasks for seamless project management.

Appraisal:

Shortwave is highly effective for Gmail users seeking smarter email management. Its AI prioritization and thread grouping are praised for making inboxes more navigable. However, its reliance on Gmail may limit its appeal to users outside the Google ecosystem. For Gmail users, Shortwave offers exceptional value and functionality.

Pricing:

• Free: Includes basic features for individual users.

• Pro plan: $14/month per user with advanced collaboration and task tools.

• Business plan: $24/month per user, adds shared inboxes and team features.

• Premier plan: $36/month per user, tailored for enterprise needs.

3. Superhuman

Best for professionals seeking speed and AI-enhanced email productivity (Web, macOS, Windows, iOS)

Superhuman is designed for professionals who prioritize speed and efficiency in email management. Its sleek interface, AI-powered features, and keyboard-driven navigation make it a standout for users handling high email volumes.

By combining real-time prioritization and productivity tools, Superhuman delivers a streamlined experience that differentiates it from traditional email clients.

Key features:

• AI-generated replies: Crafts personalized responses based on your tone and context.

• Thread summarization: Condenses long email chains into clear, concise summaries.

• Keyboard-driven navigation: Enables fast inbox management with intuitive shortcuts.

• Follow-up reminders: Ensures important emails don’t slip through the cracks.

• Offline functionality: Allows email drafting and management without an internet connection.

Appraisal:

Superhuman is regarded as one of the fastest and most efficient email tools. Its AI-driven features, particularly thread summarization and reply generation, reduce the cognitive load of managing emails. While the $30/month price tag is steep, its time-saving features make it a worthwhile investment for professionals who rely heavily on email.

Pricing:

• Starter: $25/month per user for essential features.

• Business: $30/month per user with added collaboration tools.

• Enterprise: Custom pricing for advanced organizational needs.

4. Lavender

Best for sales teams seeking AI-driven email personalization (Web, Chrome Extension)

Lavender is an AI-powered email assistant tailored for sales professionals. Its focus on crafting personalized and impactful outreach emails differentiates it from generic email tools. By combining real-time feedback, data-driven insights, and AI suggestions, Lavender helps users optimize their emails for engagement and results.

Key features:

• Real-time email scoring: Grades emails as they’re written, offering actionable suggestions for tone, length, and clarity.

• Recipient insights: Pulls data from LinkedIn and public sources to help users craft targeted and personalized messages.

• AI-driven personalization: Suggests phrasing and tone adjustments to improve message resonance.

• Analytics and tracking: Provides open and reply rate metrics to refine email strategies.

• CRM integration: Seamlessly connects with Salesforce, HubSpot, and other CRMs for consistent workflows.

Appraisal:

Lavender excels at making email outreach more human and effective. Its real-time feedback and recipient insights are particularly valued for helping sales professionals tailor their emails. However, its niche focus may limit its appeal to general email users. Lavender offers sales teams a clear return on investment through improved engagement rates.

Pricing:

• Free: Limited to five emails per month with basic features.

• Pro plan: $29/month per user with full AI functionality and insights.

• Team plan: $49/month per user with advanced collaboration and analytics tools.

5. Proton Scribe

Proton Scribe is an AI-powered writing assistant integrated directly into Proton Mail, designed for users who prioritize privacy. Proton Scribe operates locally, unlike most AI tools that process data on external servers, ensuring sensitive information remains private.

It combines secure email composition with productivity-enhancing features, making it ideal for privacy-conscious individuals and businesses.

Key features:

• Draft generation: Creates initial drafts based on user prompts, saving time on composing emails.

• Proofreading: Identifies and corrects grammatical errors for polished, professional communication.

• Tone adjustment: Offers options to formalize or customize the tone of emails for different contexts.

• Privacy-first design: Processes data locally without external server interactions, ensuring maximum confidentiality.

• Open-source foundation: Built on open-source principles for greater transparency and security audits.

Appraisal:

Users particularly value Proton Scribe’s privacy-first design and seamless integration with Proton Mail. Its proofreading and tone adjustment features add significant value for those who require secure and polished email communication. However, Proton Scribe may feel limited compared to other AI tools with broader capabilities. Overall, it is a reliable and trustworthy option for users who prioritize security over expansive features.

Pricing:

• Included: Free with Proton Duo, Family, Visionary, and Lifetime plans.

• Business add-on: $2.99/month per user for Proton Mail business plans.

6. SaneBox

Best for users seeking AI-driven email filtering and organization (Web)

SaneBox is a standalone email management tool designed to work with existing email accounts like Gmail, Outlook, and Apple Mail. Its AI-powered filtering prioritizes important emails and declutters your inbox by automatically sorting less critical messages. SaneBox is ideal for professionals looking to streamline their email workflow without switching to a new platform.

Key features:

• SaneLater: Filters unimportant emails into a separate folder to keep your inbox clean.

• SaneBlackHole: Users can block unwanted senders by dragging emails into a designated folder.

• SaneReminders: Provides follow-up alerts for emails requiring action.

• Customizable filters: Enables users to create custom sorting rules tailored to their workflow.

• Compatibility: Works seamlessly with multiple email providers without requiring additional installations.

Appraisal:

SaneBox effectively reduces inbox overload with its intelligent filtering and sorting capabilities. Users appreciate its ease of integration and minimal setup requirements. However, the initial training period may require manual adjustments as the AI learns user preferences. It’s a practical solution for anyone seeking better email organization without replacing their current email client.

Pricing:

• Snack plan: $7/month for one account and basic filtering features.

• Lunch plan: $12/month for two accounts with additional filtering folders.

• Dinner plan: $36/month for four accounts with unlimited filtering.

• Business plan: Custom pricing for teams and enterprises.

7. Microsoft 365 Copilot

Microsoft 365 Copilot is an AI-powered assistant integrated across Microsoft 365 applications, including Outlook. In Outlook, Copilot enhances email productivity by drafting messages, summarizing threads, and providing context-aware responses.

Built directly into the Microsoft ecosystem, it’s a natural choice for businesses already using Microsoft 365.

Key features:

• Email drafting assistance: Generates email drafts based on brief prompts for faster composition.

• Summarization: Condenses lengthy email threads into concise, actionable summaries.

• Context-aware replies: Suggests responses aligned with the tone and content of previous conversations.

• Microsoft Graph integration: Leverages organizational data to personalize insights and recommendations.

• Seamless integration: Works natively within Outlook alongside other Microsoft 365 tools.

Appraisal:

Microsoft 365 Copilot is highly effective for users deeply embedded in the Microsoft ecosystem. Its AI capabilities, particularly summarization and drafting, streamline email tasks and save time. While its premium pricing may deter smaller businesses, it’s an excellent option for teams seeking a unified, productivity-focused solution within Microsoft 365.

Pricing: 

• Copilot Pro: $20/month per user, available with Microsoft 365 Personal or Family subscriptions.

• Microsoft 365 Copilot: $30/month per user, available with Business Standard, Business Premium, E3, E5, or Office 365 E3/E5 subscriptions.

8. Google Gemini for Gmail

Best for AI-enhanced email composition and management within Gmail (Web, Android, iOS)

Google Gemini for Gmail is an AI-powered assistant integrated directly into Gmail. It is designed to streamline email composition and inbox management. Gemini leverages advanced AI to help users draft emails, summarize threads, and refine their writing within the Gmail interface. Its deep integration with Google Workspace makes it a valuable tool for individuals and teams.

Key features:

• Help me write: Generates email drafts based on user prompts, speeding up message creation.

• Summarization tool: Condenses long email threads into concise summaries for quick comprehension.

• Refinement options: Lets users formalize, elaborate, or simplify drafts to match the desired tone and style.

• Inbox Q&A: Enables natural language queries for efficient inbox management.

• Integration with Google Workspace: Syncs with Google Calendar, Drive, and other Workspace apps for a seamless workflow.

Appraisal:

Google Gemini stands out for its intuitive features and tight integration with Gmail and Workspace. Its AI-driven drafting and summarization tools save significant time for users managing high email volumes. While some users have reported occasional inaccuracies in AI-generated content, Gemini remains a reliable option for those looking to enhance their email workflows without additional software.

Pricing:

• Free: Available for individual Gmail users at no additional cost.

• Business Standard: $12/month per user, includes access to Gemini and other Workspace tools.

• Business Plus: $18/month per user, with enhanced Workspace features and AI capabilities.

• Enterprise Plans: Custom pricing with extended AI usage and advanced features.

9. MailMaestro

Best for AI-driven email management and composition within Outlook and Gmail (Web, Outlook, Gmail)

MailMaestro is an AI-powered email assistant designed to optimize email workflows. Integrating with Outlook and Gmail enhances productivity through smart drafting, prioritization, and automated responses. With its advanced AI capabilities, MailMaestro simplifies email management while helping users maintain professionalism and efficiency.

Key features:

• Email writer: Creates high-quality drafts tailored to user prompts.

• Email response: Generates contextual, one-click replies in multiple languages and syncs with calendars for smart scheduling.

• Email management: Offers priority inbox reports and automatically summarizes threads for quick overviews.

• Templates: Provides customizable templates powered by AI for common communication needs.

• AI personality: Adapts writing style and tone to match individual preferences for personalized email communication.

Appraisal:

MailMaestro excels at streamlining email composition and management for professionals and teams. Users find the AI drafting and response features particularly useful for saving time while maintaining message quality. While occasional lags in generating text can disrupt workflows, the tool’s overall functionality and integration make it a strong choice for heavy email users.

Pricing:

• Free: Limited access with up to 3 requests per week.

• Professional: $15/month per user, includes full AI features for individual users.

• Team: $15/month per user, adds administrative tools and security for teams.

• Enterprise: Custom pricing for advanced security and large-scale deployments.

The Future of AI Email Tools: Beyond 2025

The tools on this list are already revolutionizing email management, but the future promises even greater possibilities. As AI evolves, these tools—or entirely new entrants—could break new ground, stretching the limits of what’s possible.

Here’s what might be on the horizon:

Hyper-personalized communication:

AI email tools, using sentiment analysis and behavioral data, could draft emails tailored not just to tone but to individual preferences, emotions, and context. Companies like Crystal Knows and xAI are pioneering these capabilities.

Augmented reality (AR) email interfaces:

With AR, users can interact with emails in 3D environments, prioritizing tasks, summarizing threads, or collaborating visually. Companies like Meta are laying the groundwork for AR-integrated workflows.

Autonomous email agents:

Imagine email tools that go beyond assisting to acting autonomously, negotiating meeting times, or responding to non-critical emails with minimal oversight. Early explorations by Anthropic and Stability AI may point in this direction.

The future of AI email tools is bold and uncharted. Whether through hyper-personalization, immersive AR interfaces, or entirely autonomous agents, the boundaries of email communication will continue to be pushed, reshaping how we connect and collaborate.

Wrapping Up

AI email tools are essential for anyone looking to manage their inbox with greater efficiency, clarity, and personalization. From simplifying routine tasks to providing advanced insights and integrations, the tools featured in this list are already transforming email communication in 2025.

Whether you’re a professional, a marketer, or part of a larger team, there’s never been a better time to explore how AI can revolutionize your email experience. The future of email isn’t just about efficiency; it’s about unlocking entirely new ways to connect and collaborate.