Best AI Tools for Writing Books
Yes, you can use AI to write entire books, though it is up to you to decide whether that’s smart or not. At the very least, we suggest anyone willing to take this road to proofread the text before publishing it.
We have seen some folks online already doing it, so yes – it is feasible.
The easiest way to get started is to create the table of contents — or use AI to do that part as well — and then generate text for every chapter and subchapter. After that, you just have to compile the entire book in Word or Google Docs and proofread it.
Alternatively, you can use a service that will help you do this faster cause we’ve seen such services, as well.
Here are the best AI tools to help you write books:
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.
Writesonic
👍 Pros
👎 Cons
- Makes article writing much, much faster
- Also helps with crafting ad copies and product descriptions
- Used by more than 5 million users and has 15,000+ 5-star ratings
- GPT-4 is available only with paid plans
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.
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.
Jasper by Jasper AI, Inc.
👍 Pros
👎 Cons
- Helps churn out content quickly, not just for blogs
- Boss Mode is nothing short of amazing
- Highly rated - 4.8/5 stars in 10,000+ reviews
- Plagiarism detection costs extra
Jasper is an AI content automation platform designed to streamline marketing workflows, delivering brand-consistent assets at scale. It’s built for marketers who need to move fast without sacrificing quality, offering tools like Content Pipelines and Jasper IQ to automate everything from blog posts to global ad campaigns. Unlike traditional AI writing tools, Jasper integrates strategy, creation, and analytics into one ecosystem, making it a powerhouse for teams aiming to scale. Its ability to connect data and brand guidelines ensures every output aligns with your vision, which is a big draw for enterprise users. I think it’s a bold step toward redefining how marketing teams operate.
Content Pipelines are the heart of Jasper, automating the content lifecycle from ideation to publication. You input your strategy and data, and the platform generates assets, such as landing pages or press releases, that feel tailor-made. This is a step beyond what competitors like Copy.ai or Writesonic offer, which focus more on quick copy generation. Jasper’s Grid and Studio tools enable marketers (whether tech-savvy or not) to build these pipelines without coding. For example, a social media campaign can be set up to produce cohesive posts across platforms in minutes. The platform’s real-time analytics also help track performance, a boon for data-driven teams.
Jasper IQ ensures brand consistency, embedding your guidelines into every piece of content. This is critical for global campaigns or teams managing multiple markets, as it minimizes the risk of off-brand messaging. Users report saving thousands of hours annually, with one enterprise crafting 7,500 product descriptions in a day. That kind of scale is hard to match. Still, smaller teams might find the platform’s robust feature set overwhelming, with some users noting a steep learning curve for beginners.
Pricing is geared toward enterprises, which could be a hurdle for solo marketers or startups. Compared to leaner tools like Copy.ai, Jasper’s cost reflects its comprehensive approach, but budget-conscious users might hesitate. The platform’s flexibility shines in its ability to handle diverse use cases, from SEO-driven blog posts to localized press releases. However, niche industries may need to fine-tune outputs to capture specific tones or jargon, which can add a step to the process.
The community and support are standout features. Jasper’s Customer Success team and Content Engineer network offer hands-on guidance, helping users optimize workflows. The Knowledge Center and blog are packed with practical resources, making it easier to get started. Some users on forums mention that the initial setup can feel complex, but the support ecosystem helps bridge that gap.
For teams ready to adopt Jasper, start with a single use case, such as a blog post or ad campaign, to test its capabilities. Use the Jasper Foundations course to gain an understanding of the platform’s workflow. Tap into the community for real-world tips. Jasper’s ideal for marketers who want to scale content while keeping their brand’s voice sharp – just be prepared to invest time upfront to master its tools.
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 a book?
From the perspective of AI, there is little difference between a book and an article. The only difference could be in the size of the output, and you may have to generate a book chapter by chapter. Here’s what AI can do for you:
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Prepare a table of contents
You can explain to the AI what kind of book you want to create and ask for it to propose a table of contents. Take some time to revise it, and then you can ask an AI tool to…
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Write chapters
You can ask AI to generate entire chapters for you. Just give it a title along with a few additional instructions, and let it do its magic. You can specify the number of paragraphs and the style/tone of the writing to get to the winning chapter.
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Get illustrations
You can also use AI to create illustrations for your book. There are quite a few image-generating AI tools out there, and you can play with more of them until you get the images you want to use in your book. In addition, AI could also be used to create a cover for your book.
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Marketing materials
Once you’re done “writing” your book, you may want to sell it – or offer it for free. In both cases, you will need marketing materials – like content for the landing page. AI could help with this, too as it has been trained in different marketing texts.
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Summarization
You may want to include bits from other texts in your book and here too – the AI could help. You can ask it to summarize articles and entire books for you and then use that newly created text in your book. This could be an entire chapter…
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Rephrasing
Alternatively, you may want to rephrase some text. Again, AI has your back and will gladly create a new text from the one you provide. This, again, could be used in your book.
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Business communication
As part of your outreach strategy to offer your book, you may need a series of emails. AI is perfectly suited for that task, having been trained in all kinds of business communication texts. Just specify how many emails you want to send, what kind of book you’re offering, and let it do the hard work for you.
To sum it up, if you want to write a book – use AI to speed things up. We don’t suggest you leave it all up to algorithms, but they can definitely help you beat writer’s block. And then some.