Best AI Tools for Email Writing
Writing emails, especially those for business correspondence, can be boring — unless you use AI.
Gmail is already experimenting with AI writing and auto-complete features, and soon enough – most email services will be able to help you write better emails.
Or you can use a dedicated service for all kinds of writing — email included — that will help you craft better messages and sound more professional when exchanging emails with your colleagues, business partners, and clients.
Here are some of the services you can already use for generating different kinds of textual content and then use their results in your email client:
Rytr
👍 Pros
👎 Cons
- Over 40 supported use cases
- Handy browser extension makes Rytr easily accessible from anywhere
- The rich-text editor lets you fine-tune your content
- Not so good for long-form content writing
Rytr is an AI-powered writing assistant designed to help users create high-quality content quickly and cost-effectively. As such, it can help them write blog posts, articles, emails, ads, product descriptions, and more. In fact, the service supports a variety of writing needs with over 40 use cases and templates, and it can write in over 30 languages with different emotional tones.
One of Rytr’s key features is its advanced rich-text editor that can help you fine-tune your content. You can use it to re-word, shorten, and improve the content before publishing. Also included is a plagiarism checker that makes sure your content is unique and not similar to anything out there.
Rytr has project management and team collaboration capabilities, allowing you to store and organize your projects in one place, manage team members, and download your work. This is particularly important for businesses that handle multiple projects at once.
Another handy feature is Rytr’s browser extension. As you can imagine, it lets you create content while browsing the web, working on an email, a social post, or a blog. With a single click on the Rytr icon, your AI assistant will jump to help you.
Rytr aims to be your all-in-one writing platform and has, in that sense, bundled many other tools into its platform. It includes things like an SEO analyzer for optimal keyword use, a mobile-friendly interface, plugins for WordPress and Shopify, and an API for integration into other apps. This means you get one writing app to rule them all.
Wordtune by AI21 Labs
👍 Pros
👎 Cons
- Helps students better write their assignments
- Great for marketers as it can help them craft better emails, ads, and more
- An invaluable tool for non-native English speakers
- The free plan is somewhat limited
Wordtune is an AI-powered writing assistant that refines your text with paraphrasing, grammar corrections, tone adjustments, and summarizing capabilities. It integrates seamlessly into your workflow, offering contextual rewrite suggestions that align with your writing style. Whether you’re drafting an email, crafting an essay, or summarizing a report, it aims to make your words clearer and more impactful. The tool supports translation from 10 languages into English, making it accessible for non-native speakers. Its Chrome extension and mobile apps ensure you can use it anywhere, from Gmail to social media platforms.
The core strength lies in its rewrite suggestions. Unlike basic synonym swappers, Wordtune analyzes context, offering rewrites that match your intent, whether you want a casual tone or a formal one. The tone-switching feature is intuitive, allowing you to toggle between professional and friendly modes with a single click. For students, the summarizing tool is a standout, condensing long articles or videos into concise summaries with citations for credibility. The Smart Synonym generator helps diversify vocabulary without losing meaning, and the Continue Writing feature can jumpstart a stalled sentence, though it’s not always spot-on.
Compared to competitors like Grammarly and QuillBot, Wordtune balances versatility and simplicity. Grammarly excels in grammar and spelling precision, while QuillBot focuses on paraphrasing depth. Wordtune, however, excels in tone flexibility and summarization, making it an ideal choice for users who require a versatile tool. Its pricing includes a free tier with basic features and a premium plan for advanced capabilities, which aligns with industry standards but may feel restrictive for heavy users on the free plan.
The summarizing feature is a hidden gem, especially for academic or professional use. Feed it a lengthy document, and it delivers a tight summary, saving hours of reading. The translation feature also helps non-native English speakers sound fluent, though it only outputs in English. The Chrome extension is lightweight, embedding into your browser without slowing it down, and the mobile apps are equally smooth for on-the-go edits.
Drawbacks exist. The tool requires an internet connection, which can be a hassle offline. Its suggestions, while solid, sometimes lack the creative flair necessary for artistic writing, and the free version limits access to premium features, such as advanced tone adjustments. Compared to Grammarly’s deep grammar checks, Wordtune’s corrections are less comprehensive but still effective for most users.
To get the most out of Wordtune, use it for quick edits on emails or social posts, leverage the summarizer for research, and experiment with tone settings to match your audience. It’s a reliable tool for refining your writing, but don’t rely on it for highly creative tasks or offline work.
Grammarly by Grammarly Inc.
👍 Pros
👎 Cons
- It can make a huge difference in your writing style and tone
- Helps you craft much better and more effective emails
- Helpful in generating new article ideas with GrammarlyGO
- Currently, Grammarly supports only the English language
Grammarly is an AI-powered writing assistant that refines your text with real-time grammar, tone, and style suggestions, making it a go-to for professionals, students, and teams. It integrates effortlessly into tools like Gmail, Slack, and Word, catching errors and offering rewrites to make your writing clear and impactful. The Free plan covers basic grammar and tone detection, while the Pro plan (around $12/month annually) adds full-sentence rewrites, brand style alignment, and up to 2,000 AI prompts. For larger organizations, the Enterprise plan includes unlimited prompts, granular permissions, and robust security features, such as data loss prevention. Trusted by over 50,000 organizations, including Zoom and Salesforce, it’s built for both solo users and big teams.
The tool’s strength lies in its seamless integration. Whether you’re drafting a proposal in Google Docs or a ticket in Zendesk, Grammarly’s suggestions appear instantly, keeping your workflow smooth and efficient. The tone detection feature is a standout, letting you adjust your writing to sound confident, friendly, or formal, depending on your audience. I like how it predicts reader reactions, which is great for fine-tuning emails or reports to avoid missteps. The AI prompt feature, especially in the Pro and Enterprise plans, enables you to generate ideas or rephrase text, saving time on brainstorming and editing.
Compared to competitors, Grammarly strikes a balance between ease of use and powerful features. CoWriter dives deeper into style for creative writers, offering detailed reports, while Linguix is a budget-friendly alternative but lacks Grammarly’s polish. Hemingway Editor focuses on clarity and brevity, which suits minimalist writers but lacks Grammarly’s versatility. Grammarly’s clean interface and cross-platform support make it a strong choice for most users, though its suggestions can sometimes lean conservative, nudging you toward safer phrasing that might feel generic.
Security is a big plus, especially for Enterprise users. With certifications such as SOC 2 and ISO 27001, Grammarly ensures that your data remains private, and its confidential mode adds an extra layer of protection for sensitive work. The Free plan is great for casual users, but its 100-prompt limit for AI generation feels restrictive. Pro and Enterprise plans unlock additional features, although the cost may seem steep compared to Linguix’s lower price point. Still, the value lies in Grammarly’s ability to adapt to your style over time, making suggestions feel more personalized.
One potential downside is that Grammarly can overcorrect, particularly with idiomatic or creative phrases, suggesting changes that may not always fit the context. This can frustrate writers who want to keep a unique voice. The reader reaction feedback, while innovative, isn’t always spot-on, but it’s a helpful starting point for refining your message. The tool’s AI learns from your edits, which improves suggestions over time, a small but welcome touch for frequent users.
To make Grammarly work for you, start with the Free plan to test its core features. Install the browser extension for seamless use across platforms. If you’re a professional or a team, consider the Pro or Enterprise plans for advanced tools, such as brand style guides. Use tone detection to match your audience’s expectations, and experiment with AI prompts for quick drafts. Always review suggestions to ensure they align with your voice.
Writesonic
👍 Pros
👎 Cons
- Fast content generation
- Built-in SEO tools
- Multilingual support
- Affordable plans
- Formulaic outputs
- Learning curve
Writesonic is an AI-powered platform that generates SEO-optimized content, tracks AI search visibility, and automates marketing workflows. It supports over 80 tools for creating blog posts, ad copy, social media updates, and more, drawing from real-time data sources like Ahrefs and Google Keyword Planner. The platform integrates AI models, such as GPT and Claude, for accurate, multilingual outputs in over 25 languages. Users access features through a clean dashboard, with options for free trials and tiered plans ranging from an entry-level plan for freelancers to enterprise custom setups.
Key functionalities include the AI Article Writer, which produces full drafts with EEAT signals, internal links, and citations in seconds. The Content Engine refreshes existing pages by detecting visibility drops and suggesting updates, such as fresh statistics or examples. SEO Site Audits scan for issues such as broken schemas or robots.txt errors, providing automated fixes without developer input. For AI search, GEO tracking monitors rankings across ChatGPT, Gemini, Perplexity, and other platforms, offering sentiment analysis and prompt volume data from over 120 million conversations.
Writesonic stands out for its Action Center, which identifies citation opportunities on competitor-mentioning sites and generates outreach templates. It also highlights social gaps on Reddit or Quora, offering recommendations for engagement strategies. Compared to Jasper, Writesonic provides broader SEO and AI visibility tools at lower general costs, though Jasper excels in creative long-form without as much technical depth. Versus Copy.ai, it offers a more comprehensive content pipeline, but Copy.ai prioritizes rapid ad generation over thorough audits.
Users appreciate the speed for scaling content, with tools like Instant Article Writer delivering SEO blogs in 10 seconds. The Brand Voice feature customizes outputs from uploaded documents to ensure consistency. Multilingual support aids global teams, while Photosonic creates complementary images from prompts. Enterprise compliance includes SOC 2 Type II, GDPR, and HIPAA standards, with zero-retention AI for data security. Recent 2025 updates enhance prompt diversification and query expansion using Reddit and People Also Ask data.
Potential drawbacks include occasional formulaic tones that require edits for nuance, as well as higher tiers for unlimited generations. The free plan limits advanced features like GEO tracking. Support varies by plan, with priority options for paid users. Integration with WordPress and Google Analytics streamlines the publishing process. For teams, it supports multiple users and projects, with Slack channels on upper plans.
Practical steps include starting with the free trial for basic generations, then upgrading for audits. Test the Paraphrasing Tool on drafts before publishing. For bloggers, combine Blog Outlines with Keyword Extractor for targeted posts. Marketers should utilize the Action Center every week to monitor citations and refresh content proactively.
LanguageTool by LanguageTooler GmbH
👍 Pros
👎 Cons
- Goes well beyond basic spell-checking
- Very useful for non-native language speakers
- Support for different dialects can come in handy
- The translate function is not included (even though it supports multiple languages)
LanguageTool is a versatile AI-powered writing assistant that checks grammar, spelling, and style across over 30 languages, making it a go-to for multilingual writers. Its clean interface lets you paste text or type directly, with errors flagged in real-time via red or blue underlines. The tool catches typos, grammar mistakes like incorrect verb agreement, and even style issues, such as overused words. It’s available as a browser add-on for Chrome, Firefox, or Safari, and it also integrates with apps like Microsoft Word, Slack, and Notepad. The Paraphrasing Tool uses AI to rephrase sentences for clarity or formality, which is great for refining tone.
The free version handles basic spelling, punctuation, and some style errors, while the Premium version unlocks deeper grammar and style suggestions, which are ideal for professional or academic writing. Compared to Grammarly, LanguageTool’s multilingual support is stronger, covering languages like Spanish, German, and Portuguese, with options for English variants like US or UK. However, its style feedback isn’t as tailored for creative writing as ProWritingAid, which delves deeper into narrative flow. LanguageTool’s privacy focus, with no text storage in the browser add-on, sets it apart from competitors.
Key features include the Improve Style function, which spots redundant phrases and suggests sharper alternatives, and the Statistics feature, which tracks errors and suggestions to show your progress. The tool’s punctuation checker is precise, catching misplaced commas in complex sentences, and the Confirm Casing feature ensures proper capitalization for names or places. It’s not just for browsers – dedicated apps for Windows and macOS make it a flexible choice for various workflows.
On the downside, the free version feels limited, as advanced suggestions require a Premium upgrade, which might not suit everyone’s budget. Some users may find the style suggestions too rigid, especially for creative or informal writing, where flagged phrases might be intentional. Unlike Grammarly, which excels in English tone adjustments, LanguageTool prioritizes correctness over flair, which may frustrate writers seeking a unique voice.
The tool shines for non-native speakers or those juggling multiple languages, as it seamlessly switches between dialects and languages. Its integrations make it practical for everyday use, whether you’re drafting emails in Gmail or reports in Word. The Paraphrasing Tool is a standout, offering quick rewrites that save time; however, you may need to tweak the suggestions to match your style.
For best results, try LanguageTool’s free version on a short document to gauge its fit. Utilize the Statistics feature to track improvements, particularly if you’re a student or professional looking to refine your work. Check for academic discounts if you’re on a budget, and don’t hesitate to override suggestions that clash with your creative intent; it’s your voice, after all.
How can AI help you write better emails?
If you’re receiving a ton of emails every day, many of which require responses, you know it can be a pain to address all of them. You may have to sound polite, provide explanations and arguments, and overall spend a ton of time to keep a professional attitude and étiquette. In that sense, here’s how AI can help you with this:
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Generate professional emails
Just tell the AI what kind of email you want to send and to whom (i.e., partner, client, colleague, etc), and let it do the magic for you. What you’ll get is a solid draft, you can then tweak and finally send it to the recipient.
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Let AI create responses for you
For instance, you can provide AI with the email you’ve received and tell it what kind of response you want the tool to write for you. And voila, watch the magic taking place in front of your eyes. You’ll get a professionally crafted response you would otherwise spend a ton of time writing.
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Hold your anger
We’ve seen a few services such as [SERVICE_NAME] that let you write what you actually want to say to the person on the other end (yes, you can curse), and get it to generate a professional reply you can safely send to anyone. Pretty cool.
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Create a series of emails
This can be very useful for anyone using an autoresponder service. Instead of doing it all by yourself, you can rely on AI to generate a series of emails. Just explain to the AI what you’re trying to achieve and let it do the hard work for you.
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Generate a “thank you” email
Similarly, when someone contacts you from a website or asks for a quote, you should send that person a “thank you” email. Here too, the AI can help and generate that message for you. Since the algorithm has been trained on all kinds of messages, it knows how to craft engaging messages.
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Create other content
Beyond emails, you can use the same service to generate other textual content, such as articles, blog posts, social media updates, ads, essays, and more. In fact, we argue for getting one service that can handle different kinds of tasks and help you create all kinds of texts.
Not everyone is using AI to generate emails, but that doesn’t mean you shouldn’t do it. As far as we can tell, this is the future – with AI doing the heavy lifting and adding pleasantries to your correspondences. It’s the brave new world.