5 Best AI Email Writing Tools of 2025 (Ranked and Reviewed)

Email remains one of the most effective communication channels, but let’s be honest—crafting the perfect email is time-consuming and often frustrating.

How many times have you stared at a blank screen, struggling to find the right words for that important client email or cold outreach message? You’re not alone.

I used to spend way too much time crafting the perfect email, whether for client communication or outreach. Then, I discovered AI email writing tools, and they completely changed the game.

In this article, I’ll share the 5 best AI email writing tools of this year, based on my extensive testing and real-world application.

Whether you’re a busy entrepreneur, marketer, or professional drowning in your inbox, these tools can transform how you handle email communication.

What is an AI Email Writing Tool?

AI email writing tools are advanced software solutions designed to help users craft clear, professional, and engaging emails with ease.

Powered by artificial intelligence, these tools analyze context, tone, and intent to generate well-structured email content in seconds.

AI email writing tools offer features like tone adjustment, template libraries, and personalization capabilities that help users overcome writer’s block and maintain consistent communication quality.

Modern solutions integrate directly with popular email platforms to provide seamless assistance within existing workflows, dramatically reducing the time spent on routine correspondence while potentially improving engagement metrics.

What Are The Best AI Email Writing Tools?

Here are the best AI Email Writing Tools.

1. Jasper AI

Jasper AI is a powerful AI writing assistant designed for professionals and businesses looking for high-quality email content.

This tool leverages advanced AI models to generate contextually relevant emails that sound genuinely human.

One of its impressive features is Boss Mode, which lets you guide the AI in real-time, making tweaks as you go to get the perfect message.

The interface is clean and intuitive, with specialized email templates that cover everything from cold outreach to follow-ups and customer support. You can specify your desired tone, length, and key points—then watch as Jasper crafts a perfectly structured message in seconds.

Key Features:

• Email-specific templates with proven conversion frameworks.
• Tone adjustment slider from formal to casual.
• Team collaboration features for consistent brand voice.
• Chrome extension for direct writing assistance in Gmail and other platforms.
• SEO-optimized email copy for marketing campaigns.
• One-click generation from bullet points or conversation summaries.
• Advanced personalization options that go beyond basic mail merges.

Pricing:

Jasper AI offers a 7-day free trial, so you can test the features and see if it’s right for you.

The platform offers multiple pricing tiers, starting at $39/month.

2. Gemini for Gmail

Gemini for Gmail is the perfect AI email assistant for Google Workspace users. If you’re looking for a seamless way to speed up your email writing without losing the personal touch, this tool is a great option.

When I integrated it with my Gmail account last quarter, it reduced my email drafting time by 72% while maintaining the personalized touch my clients expect.

What sets Gemini apart is its deep integration with Gmail’s ecosystem and understanding of your communication patterns.

Rather than requiring you to switch between platforms, Gemini works directly within your Gmail interface, analyzing your writing style and previous conversations to generate contextually appropriate responses.

I’ve found Gemini particularly valuable for handling high-volume inbox management, as it suggests quick replies for straightforward messages while offering more nuanced assistance for complex communications.

The contextual awareness is remarkable—it remembers previous conversations and adapts accordingly.

Key Features:

• Native Gmail integration with no platform switching required.
• Smart reply suggestions analyze your email context to generate quick, relevant responses.
• Automated follow-up scheduling and reminders.
• Real-time writing assistance helps you craft professional emails as you type.
• Tone and length adjustments to match your communication style.

Pricing:

Gemini for Gmail is available as part of the Google Workspace AI add-on. Individual users can access basic features at $10/month, while the Business tier at $20/month unlocks advanced capabilities.

You can also use their free version which offers basic smart replies.

3. ChatGPT Writer

ChatGPT Writer has established itself as the most versatile AI email assistant, capable of adapting to virtually any email scenario.

Using advanced natural language processing, ChatGPT Writer helps you craft clear, professional, and engaging emails in seconds.

Whether you’re responding to clients, drafting formal proposals, or composing everyday messages, this tool ensures your writing is polished and on point.

ChatGPT Writer stands out with its customization and ability to learn from feedback. Unlike rigid email assistants, it adapts to your input, letting you refine responses through conversation.

I love how it helps with writer’s block. When I’m unsure how to handle a tricky email, I just provide the context, and ChatGPT Writer suggests thoughtful responses to guide me.

Key Features:

• Browser extension that works across all major email platforms.
• Detailed prompt templates for specific email scenarios.
• Conversational feedback allows you to refine messages through AI-powered suggestions.
• Custom personas ensure your emails maintain a consistent tone and voice across different contexts.
• Sentiment analysis to gauge emotional impact.
• Multiple stylistic variations for important messages.
• Advanced formatting options make it easy to structure complex professional emails.

Pricing:

ChatGPT Writer offers a free plan with limited generations per day.

Their Plus plan costs $20 per month and offers higher-quality outputs with more daily generations.

4. Copy.ai

Copy.ai is a game-changer for writing marketing emails that get results. If you want to boost engagement and conversions, this tool can make a real difference.

What makes Copy.ai stand out is its campaign-focused approach. It doesn’t just spit out generic email content—it crafts strategic email sequences tailored to your marketing goals, whether you’re launching a new product or re-engaging past customers.

One of the most valuable features? The massive library of proven marketing frameworks. Copy.ai adapts these frameworks to fit your products and audience, making your emails more effective.

And the subject line generator? Totally worth the subscription. It consistently delivers attention-grabbing headlines that get more people to open your emails.

If you want emails that convert, this tool is definitely worth checking out.

Key Features:

• Campaign-specific email sequence generators
• Subject line optimization with A/B testing suggestions
• Call-to-action generator with conversion psychology principles
• Email segmentation recommendations based on customer personas
• Integration with major email marketing platforms
• AIDA, PAS, and other proven marketing frameworks
• Brand voice customization to maintain consistent messaging

Pricing:

The free plan is available, while premium plans begin at $36 per month, offering advanced features for enhanced email writing.

5. Grammarly

Grammarly is an excellent free AI email writing tool designed to enhance your email communication effortlessly.

Whether you’re drafting professional emails or personal messages, Grammarly helps you refine your writing with AI-powered assistance.

What I found most valuable was the platform’s contextual understanding of business communication norms across different industries.

The tool automatically adjusts suggestions based on whether you’re writing to a potential client, a colleague, or a vendor, ensuring appropriate formality and terminology.

Check out our guide on how to improve your writing with Grammarly to maximize its potential.

Key Features:

• Advanced grammar and style improvement beyond basic spelling checks
• Tone detection and adjustment recommendations
• Clarity enhancements that restructure confusing sentences
• Conciseness suggestions to eliminate wordiness
• Professional vocabulary recommendations for industry-specific communication
• One-click rewrite functionality for problematic paragraphs
• Integration with all major email clients and word processors
• Brand voice settings to maintain consistent company communication

Pricing:

Grammarly offers a limited free plan focused on basic corrections. Their Premium plan at $30/month includes all writing improvements and tone suggestions.

How to Choose the Right AI Email Writing Tool

Picking the best AI email writing tool depends on your specific needs. Here’s what you should consider before making a decision:

1. Identify Your Primary Use Case

What’s your main goal? If you’re focused on sales outreach, Jasper AI offers powerful features tailored to that. But if you’re handling marketing campaigns, Copy.ai is a better fit because it provides specialized tools that generic email assistants lack.

2. Check Integration Compatibility

Think about how the AI tool will fit into your current workflow. If you rely on a specific CRM or email platform, look for tools that offer native integrations to keep things smooth and efficient. The fewer manual steps, the better.

3. Consider Ease of Use & Customization

Some tools, like Jasper AI, give you tons of customization options but require a bit of setup. If you want something that works straight out of the box, GrammarlyGO is a great option—it’s designed for simplicity and requires little to no configuration.

4. Think About Email Volume

How many AI-generated emails do you need per month? Some tools limit the number of emails you can create on lower-tier plans. If you send emails at a high volume, make sure you choose a plan that won’t hold you back.

Wrap Up.

AI email writing tools have matured dramatically in recent years, evolving from simple grammar checkers to sophisticated writing partners capable of handling nuanced professional communication.

For most professionals dealing with high email volumes, investing in one of these tools represents not just a convenience but a strategic advantage.

The time saved and communication quality improvements can deliver meaningful ROI within weeks of implementation.

Curious about AI in blogging? Over on EaglesDigital.com, I break down the top AI blogging tools to help you automate and grow your business.