Have you ever struggled to find the right words while drafting an important letter? In today’s fast-paced world, communication plays a vital role, and AI letter writting tools are making it easier than ever to express thoughts clearly and professionally.
These tools use artificial intelligence to craft personalised, well-structured, and polished letters for different purposes-whether professional, academic, or personal. From job applications to heartfelt notes, AI-powered letter writers are transforming the way people write.
In this blog, we’ll explore the Top 15 AI Letter Writers that help you save time while ensuring impactful communication.
Why AI Letter Writers Are Becoming Popular in 2025
AI letter writers are moving towards popularity in 2025 as more people want the form of communication that is fast, efficient, and professional. Recent surveys indicate that close to 68% of professionals employ AI-driven applications in writing cover letters, email messages, and business proposals taking 40% less time on average.
What is attractive to them is that they can create a polished, grammatically correct, and contextually relevant text to fit various requirements (formal business correspondence and personal notes). Due to the emergence of remote work and international networking, clarity and conciseness of communication has never been as important as it is now.
Multilingual drafting is also advocated by the AI letter writting tools, and they can be useful in international cooperation. Their affordability and ease of use also add to the wide usage, where it is expected that their market value will increase by more than 20% a year over the next few years due to the use of AI writing assistants.
Key Features to Look for in an AI Letter Writting Tool
When choosing the right AI letter writer, it’s important to know which features can truly enhance your writing experience. Here are the key features to consider:
- Personalisation Options: The tool should adapt tone, style, and structure based on user input for authentic and customised letters.
- Multiple Templates: Availability of varied templates for business, academic, and personal letters ensures versatility and convenience in writing.
- Grammar and Spell Check: Built-in correction features help deliver error-free, polished letters that maintain professionalism and credibility.
- Tone Adjustment: The ability to switch between formal, casual, persuasive, or friendly tones improves message effectiveness across contexts.
- Multilingual Support: Tools with language diversity allow users to draft letters in different languages for global communication needs.
- User-Friendly Interface: A simple, intuitive interface ensures easy navigation, even for beginners with little technical knowledge.
- Data Privacy and Security: Protecting sensitive personal and professional information is essential when using AI-powered writing tools.
- Export and Sharing Options: The option to download or share letters directly saves time and enhances accessibility across platforms.
List of Top 15 AI Letter Writting Tools
1. Grammarly
Website: https://www.grammarly.com
Grammarly is another widely-used AI-powered writing assistant that assists users in writing error-free letters using advanced grammar, spellings and tone detectors. The clarity and word usage and professionalism of any draft are enhanced by its AI-based proposals.
Grammarly also has tone manipulation options, so it can be used in both formal and informal letter writing. It provides refined correspondence in emails, business letters and personal notes and ensures this with its real time feedback and browser integration.
It is totally free and sites with paid versions and is trusted by students, professionals, and businesses around the world.
Key Features:
- Advanced grammar, spelling, and punctuation correction in real-time.
- Tone detection for professional or casual letters.
- Style suggestions to improve clarity and conciseness.
- Browser, desktop, and mobile integrations for accessibility.
- Secure data handling for user privacy.
Pricing:
- Free– 0
- Pro– ₹983.25/member/month
- Enterprise– Custom Pricing
2. ChatGPT (OpenAI)
Website: https://chatgpt.com
OpenAI ChatGPT can be described as one of the most useful AI software used in letter writing, as it can create professional, creative, and personal drafts in real time.
It is flexible to user commands, and it generates customised letters with the appropriate tone and format. ChatGPT is useful in meeting diverse writing requirements, including writing business proposals as well as personal heartfelt notes.
It has easy customisation due to its conversational style and high quality outputs due to its vast knowledge base. ChatGPT as an AI writing partner saves time, improves creativity, and promotes effective communication in any situation.
Key Features:
- Generates professional, creative, and personal letters instantly.
- Allows tone and style customisation based on user needs.
- Provides context-aware, structured, and natural-sounding drafts.
- Supports brainstorming and refining letter content.
- Accessible via web and mobile apps for convenience.
Pricing:
- Free– $0
- Go– $0
- Plus– $20/month
- Pro– $200/month
- Business– $30/month
- Enterprise– Custom Pricing
3. Jasper.ai
Website: https://www.jasper.ai
Jasper.ai is one of the most popular AI content generating applications that is capable of producing high-quality and context-specific letters. It presents templates that can be customised which simplifies drafting of professional correspondence, cover letters and persuasive communication.
The AI of Jasper adjusts the tone and drafts according to the user’s intention. Marketers and professionals who require polished writing in a hurry like it especially.
Jasper offers more than letter writing with such functions as collaboration, content creation that is SEO-friendly, and tools that suit teams. It is a great option both for companies and individuals.
Key Features:
- Offers ready-made templates for letters and business writing.
- Adapts tone and voice to match user preferences.
- Generates persuasive and professional correspondence quickly.
- Collaboration-friendly for team-based writing.
- Integration with multiple platforms for seamless use.
Pricing:
- Pro– $69/month
- Business– Custom Pricing
4. Writesonic
Website: https://writesonic.com
Writesonic is a content writing tool that is fast and accurate in generating content (professional and personal letters). It gives users templates and customisation features, which simplify the process of drafting cover letters, proposals and emails.
The AI of Writesonic is able to produce interesting and grammatically correct text within seconds, which is why it suits busy people. It provides global communication benefits with the help of multilingual support and integration of platforms such as LinkedIn.
Writesonic balances is affordable and has capabilities powerful enough to be the AI text assistant of choice in writing letters.
Key Features:
- AI-powered templates for cover letters, proposals, and emails.
- Produces polished, grammatically correct drafts in seconds.
- Supports over 25 languages for global communication.
- Integrates with LinkedIn and other platforms.
- Affordable plans suitable for professionals and businesses.
Pricing:
- Free– 0
- Individual– $16/month
- Lite– $49/month
- Enterprise– Custom Pricing
5. Rytr
Website: https://rytr.me
Rytr is a cheap AI writing assistant that will assist people to write professional letters in a fast and effective way. It provides more than 40 application cases such as cover letters, official applications and personal communications.
Rytr provides clear, high-quality drafts of adequate tone, grammar, and readability, and there is always an effect of professional communication. The platform is commended to be simple and affordable that can be enjoyed by students, freelancers and small businesses.
Having multilingual and user-friendly features, Rytr also enables users to have an idea and save their time and efforts to put it into words.
Key Features:
- Provides 40+ use cases including formal letters.
- Generates high-quality drafts with proper flow and tone.
- Supports multiple languages for diverse users.
- Simple, user-friendly platform with quick results.
- Budget-friendly pricing plans for individuals and startups.
Pricing:
- Free– 0
- Unlimited– $9/month
- Premium– $29/month
6. Copy.ai
Website: https://www.copy.ai
Copy.ai is another AI-based writing service that suits it best to write persuasive letters with a proper structure. Having many templates, users can make professional cover letters, proposals, and personal messages with minimum effort.
This tool is creativity oriented, providing options of tone adjustment and use of the tool to suit certain situations. Its user-friendly interface is friendly to both amateurs and experts. The copy.ai also has award-free and award-premium versions, so there is flexibility.
To any person in need of interesting, refined letters without writer-block, Copy.ai provides a sure remedy that is both fast and quality.
Key Features:
- Wide variety of templates for letters and messages.
- Creative tone generation for engaging content.
- Easy-to-use interface suitable for all users.
- Free and premium versions for flexibility.
- AI ensures error-free, impactful writing outputs.
Pricing:
- Chat– $29/mo
- Agents– $249/mo
7. Anyword
Website: https://anyword.com
Anyword is an AI-based writing assistant that uses predictive analytics to write successful, audience-centric letters. It is especially powerful in its ability to customise tone and style in order to maximise its effect, which is why it can be used in professional and marketing letters.
Anyword will give information on the performance of the text and allow individuals to select the most interesting drafts. Its platform encourages casual and formal writing, and has the ability to write in multiple languages.
Anyword is a good competitor to those users who are interested in more than just well-written letters but meaningful communication.
Key Features:
- Predictive performance scoring for effective communication.
- Adapts tone and style to audience expectations.
- Generates professional and marketing-focused letters.
- Supports multilingual drafting for global reach.
- Provides analytics to optimise message effectiveness.
Pricing:
- Starter– $49/month
- Data-driven– $99/month
- Business– Custom Pricing
8. Wordtune
Website: https://www.wordtune.com
Wordtune is a product that is used to streamline and improve written communication through superior rewriting and rephrasing. It is a fantastic AI application in enhancing the clarity, tone, and fluency of letters.
Instead of creating original content, Wordtune allows its users to rewrite their texts into professional and refined messages. Its contextual predictive typing makes the letters sound natural and understandable and interesting.
Wordtune is the best choice when one would rather handle contents but have AI help to enhance the words. It is ideal in writing letters both professionally and personally.
Key Features:
- Rephrases and rewrites letters for clarity and impact.
- Enhances tone, fluency, and readability of drafts.
- Provides real-time editing suggestions.
- Ideal for improving existing letters rather than creating from scratch.
- User-friendly extensions for browsers and apps.
Pricing:
- Basic– 0
- Advanced– $13.99/month
- Unlimited– $19.99/month
9. Microsoft Editor
Website: https://www.microsoft.com/en-us/microsoft-365/microsoft-editor
Microsoft Editor is an AI based software that is integrated in Microsoft 365 products such as Word and Outlook. It also improves writing of letters by providing instant grammar, spelling, and other stylistic recommendations.
In addition to corrections, it also offers some refinements to the tones and clarity to make correspondence more professional. It is easily integrated into the mainstream productivity tools and is useful when writing emails, official letters, and documents.
Microsoft Editor is available to many people, with its free and premium options. It works especially well with the professionals working in the Microsoft ecosystem a lot.
Key Features:
- Integrated directly into Word and Outlook.
- Offers grammar, spelling, and style suggestions.
- Provides tone refinements for professional letters.
- Cloud-based editing across Microsoft 365 apps.
- Both free and premium plans are available.
Pricing:
- Microsoft Editor– $9.99/month
- Microsoft 365 Personal– $9.99 /month
- Microsoft 365 Family– $12.99 /month
10. JustDone AI
Website: https://justdone.com
JustDone AI has in-store more than 100 specialised content-making tools, such as the writing of letters. It is very good at generating structured, grammatical and engaging letters that are based on various requirements.
It has inbuilt templates and thus it can be used in business, academic and personal communication without any problem. The platform is versatile and is therefore used by individuals who want to have a one-stop AI assistant.
JustDone AI also incorporates rewrite, summarise and idea generation features and offers full writing assistance. Its emphasis on speed and accuracy makes it take less time and provide effective and professional letters.
Key Features:
- 100+ specialised AI tools for writing tasks.
- Templates for academic, personal, and business letters.
- Provides rewriting, summarising, and paraphrasing support.
- Fast, accurate drafts for professional communication.
- All-in-one AI platform for content generation.
Pricing:
- 7-day Access– ₹2,500/month
- Unlimited Monthly Plan– ₹1,700/month
- Unlimited Annual Plan– ₹1,160/month
11. Google Gemini
Website: https://gemini.google.com
Google Gemini is a high-tech AI model created by Google, which is able to create smart, human-like content under various circumstances, such as writing letters.
It can easily create customised, professional, and interesting letters with powerful natural language features. Its compatibility with the Google world makes it accessible using such tools as Gmail, Docs, etc. Gemini also embraces the idea of multilingual drafting and this is useful in international communication.
It is accurate and professional due to its flexibility in tone, style and structure. Gemini is an innovative AI product of Google offering the latest communication solutions.
Key Features:
- Generates intelligent, human-like letter drafts instantly.
- Integrated with Gmail, Docs, and other Google apps.
- Supports multiple languages for global communication.
- Adapts to tone and context seamlessly.
- Backed by Google’s advanced AI capabilities.
Pricing:
- Google One AI Premium– $19.99 per month
- Gemini for Google Workspace Business– $20 per user per month
- Gemini for Google Workspace Enterprise– $30 per user per month
- Google AI Pro for Education– $24 per user per month
12. HubSpot Breeze
Website: https://www.hubspot.com/products/breeze
HubSpot Breeze is an AI assistant inculcated into the platform of HubSpot which is aimed at improving communication among businesses and professionals. It assists in creating clean letters, mails, and offers.
Breeze uses HubSpot data on CRM to make the correspondence personal, which makes the letters more effective to clients and partners. The writing is made easy through the tool, with regard to templates and customisation of tones.
To companies that use HubSpot to manage their sales, marketing, or customers, Breeze guarantees efficient and formal communication without increasing the load of manual writing.
Key Features:
- Drafts professional letters, emails, and proposals.
- Uses CRM data to personalise correspondence.
- Simplifies communication with easy-to-edit templates.
- Enhances productivity for sales and marketing teams.
- Fully integrated within HubSpot’s business tools.
Pricing:
- 100 Credits: $30/month
- 1,000 Credits: $150/month
- 10,000 Credits: $700/month
- 5,000 Credits: Starts at $45/month
- 30,000 Credits: Starts at $270/month
- 100,000 Credits: Starts at $900/month
13. Sudowrite
Website: https://www.sudowrite.com
Sudowrite is an AI writing assistant with its creativity and expressive writing skills. Although authors usually apply it, it is also efficient to create letters that are exciting and peculiar.
It assists users to brainstorm, polish the tone, and add human touch to communication. The power of Sudowrite is to create creative drafts and maintain lucidity and professionalism.
It is particularly appropriate to personal correspondence, where creativity is needed, or any other situation where personal touch is important. Sudowrite is a good alternative when one needs to add more personality to the letters.
Key Features:
- Generates creative and expressive letter drafts.
- Supports brainstorming and idea expansion.
- Ideal for personal and imaginative correspondence.
- Balances professionalism with creativity.
- Adds a unique personality to every letter.
Pricing:
- Hobby & Student– $19 per month
- Professional– $29 per month
- Max– $59 per month
14. Lex
Website: https://lex.page
Lex is a contemporary AI-based writing program that is oriented towards simplicity and efficiency. It is a non-distracting writing environment with AI-assisted recommendations to edit letters.
Professional correspondence, cover letters or even proposals can be written easily by the user. The user-friendly Lex interface and clarity with tone and grammar of its AI engine makes it user-friendly to the beginner.
It is particularly helpful to those in the field who desire to have fast, clean drafts without the needless complexity. Collaboration and cloud access support make Lex a promising tool in having an effective system of writing letters.
Key Features:
- Minimalist, distraction-free AI writing platform.
- Generates clear and polished letters quickly.
- Provides AI-powered suggestions for tone and grammar.
- Collaboration-friendly with cloud accessibility.
- Beginner-friendly design for easy use.
Pricing:
- Text Request: $0.00075 per request
- Speech Request: $0.004 per request
- Streaming Speech Interval: $0.0065 per 15-second interval
- Automated Chatbot Designer: $0.50 per minute for training time
15. You.com
Website: https://you.com
YouWrite is one of the You.com AI products, and it is created to produce formatted and high-quality texts, such as professional and personal letters.
It offers the personalisation of tones and awareness of context, so that one can create an interesting correspondence without much effort. YouWrite will be embedded into the search-driven ecosystem of You.com, offering it a special versatility.
It supports multiple languages and types of content, which makes it an efficient solution for international users. The ease of use and free nature of this interface is particularly appealing to students, freelancers and professionals in need of simple, no-hustle letter-writing service.
Key Features:
- Generates professional and personal letters instantly.
- Customisable tones for different communication needs.
- Multilingual support for global users.
- Integrates into You.com’s AI ecosystem.
- Free and easy-to-use interface for all users.
Pricing:
- Free– $0
- Pro– $20 monthly
- Max– $200 monthly
- Enterprise– Custom Pricing
Pros and Cons of Using AI for Letter Writing
Pros:
- AI saves significant time by generating well-structured letters quickly, allowing users to focus on other important tasks.
- It ensures polished, error-free writing with strong grammar and spelling checks, enhancing professionalism in communication.
- Offers customisable tones and styles, making letters suitable for different occasions-formal, casual, persuasive, or personal.
- Provides access to ready-made templates, helping users craft specific types of letters without starting from scratch.
- Supports multilingual writing, enabling seamless communication across global audiences with accurate translations and context.
Cons:
- Over-reliance on AI may reduce personal creativity and writing skills over time.
- Generated letters may sometimes sound generic and lack a true personal touch.
- Limited understanding of complex context can lead to misinterpretation in sensitive communications.
- Some advanced features are locked behind costly subscription plans, limiting accessibility for budget users.
- Privacy concerns arise when personal or professional data is shared with AI platforms.
Tips to Get the Best Results from an AI Letter Writer
- Be Specific with Inputs: The clearer your instructions, the better the output. Always mention tone, purpose, and key details for accuracy.
- Use Templates as a Base: Start with AI-generated templates, then customise them to reflect your personal style and unique context.
- Review and Edit Thoroughly: Never rely solely on AI output. Proofread carefully to add authenticity, personality, and emotional depth to your letter.
- Experiment with Tone Adjustments: Try different tones like professional, persuasive, or casual to find what works best for your purpose.
- Leverage Multilingual Options: If writing for global audiences, use AI’s language support but always double-check translations for cultural appropriateness.
- Combine AI with Creativity: Use AI for structure and grammar but add your own flair, stories, or experiences to make the letter truly stand out.
Ending Thoughts
In conclusion, AI letter writers are no longer just convenient tools but essential companions in effective communication. They simplify the process of drafting professional, academic, and personal letters while maintaining accuracy, tone, and structure. Whether you need a persuasive cover letter, a formal business proposal, or a heartfelt personal message, these AI tools provide tailored solutions that save time and reduce stress.
The Top 15 AI letter writting tools highlighted here showcase the versatility and innovation shaping modern writing. By leveraging them wisely, you can enhance productivity, confidence, and impact in your communication. As AI continues to evolve, letter writing will only become smarter, faster, and more personalised than ever before.
FAQs
Are AI letter writting tools suitable for professional use?
Yes, most AI letter writting tools are designed to create professional content such as cover letters, business proposals, and formal emails with accuracy and clarity.
Can AI letter writers handle personalised writing?
Absolutely. Many tools allow customisation based on your input, ensuring the letter reflects your personal style and intended message.
Do AI letter writting tools guarantee error-free letters?
While they provide highly polished drafts, reviewing and personalising the final letter is recommended to ensure accuracy and authenticity.
