15+ Best AI Writing Software Tools of 2021 (Free & Paid)

Last Updated on October 16, 2021 by Marcelo Beilin

It's no secret that content creation has become increasingly difficult in the digital age. With so much competition and so much volume of information required, it can be hard to find the time and energy to write content that can move the needle. This is where AI writing software comes in.

There are a great many benefits to using these software tools, including fewer errors and faster production times. Best of all, they never get sick or go for a coffee break!

In this article, we'll explore some of the main features you can immediately benefit from when using AI writing software tools plus recommendations to find out which one may be best suited to your needs.

Disclosure: Although I receive affiliate compensation for some of the links below at no additional cost to you that compensation in no way influences my recommendations, which are strictly informed by my years of digital marketing experience working with clients large and small. My aim is to always recommend tools that will offer you the best return on investment.

What is the Best AI Writing Software?

Best Overall:


I chose Jarvis.ai as the best overall AI writing assistant simply because it's the market leader in features and quality by a long shot.

They have over 50 AI content generation templates to choose from and are constantly coming up with new use cases.

Jarvis templates include:

  • Blog posts (it can write entire blog posts from scratch with minimal inputs). This includes generating blog outlines, intro and conclusion paragraphs, body text and blog post ideas
  • Emails. This includes an email subject line generator, body text generator and personalized cold email generator
  • Marketing copy. This includes the AIDA framework (Attention-Interest-Desire-Action), the PAS framework (Problem-Agitate-Solution) and the BAB framework (Before-After-Bridge), as well as a marketing headline and sub-headline generator
  • Sentence expander, content improver and creative-story generator
  • Facebook ad generator, including ad headline and ad primary text
  • Google Ad generator, including ad headlines and descriptions
  • Google My Business listing content generator
  • Amazon listing product description and product features generators
  • YouTube video description, video title and video topic ideas generators
  • SEO meta title and meta description generators
  • Quora answer generator
  • Real estate listings generator
  • Press release title and introduction generators
  • Poll questions and multiple choice answer generator
  • and a lot more!

Jarvis utilizes artificial intelligence to analyze the seed words you provide and then goes on to create entire phrases, paragraphs or documents based on your subject matter and tone of voice.

For example, Jarvis can generate a 1,500 word blog post in 5-15 minutes, depending on how much guidance you give it.

Without a doubt, Jarvis is a game changer in the content-creation space, dramatically reducing the creation time of blog posts, landing pages, general content, marketing copy, and even speeches and business proposals.

Jarvis Features that Stand Out

  • Unmetered AI content generation (Boss Mode plan only)
  • Long-form writing assistant for 1000+ word articles
  • Multilingual: 25+ languages supported
  • Surfer SEO integration
  • Intuitive interface
  • Chat support

Note: The full introduction of this article with the exception of 10-12 words was written entirely by Jarvis simply by providing it with the title of this post.


Copysmith is another AI-based text generator developed to reduce the creation time burden for content marketers.

It can write entire articles within minutes with a wide range of content styles and tones of voice.

It can also autogenerate the text for entire emails, ad headlines, product descriptions, marketing copy, SEO meta title and descriptions and much more.

Copysmith Features that Stand Out

  • Advanced content rewriter
  • Can generate blog outlines and paragraph introductions from a blog title
  • Generates plagiarism-free output
  • Supports product descriptions, Google ads, Facebook ads, Instagram ads, Taglines, metatags, and much more
  • Multilingual support

Article Forge uses AI techniques to generate high-quality, original content that will help your website rank better and faster.

It takes in keywords and topics and comes up with new content free of typos and grammar mistakes, all done in a matter of seconds. All AI-generated content is original and plagiarism free.

ArticleForge Features that Stand Out

  • Can produce entire blog posts from scratch
  • Bulk article generation
  • Adds relevant titles, videos, and images to every article
  • Adds links automatically
  • Checks for spelling and grammar mistakes produced by AI content generator
  • Can generate content in English, Dutch, French, German, Italian, Portuguese, and Spanish

WordAI generates new content for you by rewriting original articles through AI-based word spinning.

This software program understands what each sentence means as well as how words interact with each other, allowing it to retain the original meaning while creating a different spin of the article error free.

WordAi Features that Stand Out

  • AI-based article spinner
  • Dynamically paraphrases articles making the new content indistinguishable from a human writer
  • Generates unique article titles
  • Corrects grammar and spelling errors in the content.
  • Can spin articles in bulk
  • Supports English, Spanish, French and Italian with more languages to come

AI-Writer is a tool that uses artificial intelligence to write content for you. You simply give it a topic and AI-Writer will provide you with an article in a matter of minutes.

You can input a title, a headline or a group keywords and then let AI-Writer do all the heavy lifting by spitting out highly informative blogs at lightning speed with SEO optimization built right in.

AI-Writer Features that Stand Out

  • Generates unique article drafts just from a headline
  • Generates content with accurate information by verifying citations
  • Text rewording tool
  • Citation verifier
  • API access

Articoolo is an AI-based writing assistant tool that helps you come up with original content very quickly.

The AI technology of this program takes all related information from your article, identifies keywords and language sentiment and then rewrites the entire piece in about a minute.

Articoolo Features that Stand Out

  • Grammar Check
  • Sentence formatting
  • Plagiarism check
  • Engagement Metrics
  • Sentence Rephraser

Writesonic’s AI-powered content generation technology will help you generate high quality website copy and marketing text with just a few clicks.

You can generate blog posts automatically as well as engaging product description and marketing headlines. You can also use it to create dozens of Google and Facebook ad variations quickly, in a matter of seconds.

Writesonic Features that Stand Out

  • Can produce unique content on any topic in seconds
  • Can generate content for ads, blog posts, landing pages, product descriptions and more
  • Built-in grammar fixer
  • Content rephraser & expander
  • Multilingual support (24 languages)

ProWritingAid helps you avoid the pain of writing awkward sentences by providing grammar, spelling and style checking combined with vocabulary enhancement and sentence structure suggestions.

Its unique AI based editing algorithm also identifies unwanted elements in your text, like redundancy or vague language, while learning from your personal style giving you better and better results each time you use it .

ProWritingAid Features that Stand Out

  • Delivers 1000s of grammar, spelling and readability improvements in real-time as you write producing error-free writing
  • Contextual thesaurus helps you find the perfect words
  • Integrates with MS Word/Outlook, Google Docs, Scrivener, Open Office, and Final Draft
  • In-app suggestions, explanations, videos, and quizzes help you build your writing skills
  • Data Visualization shows readability, sentence variation and much more

ContentBox.ai is an AI-powered writing Chrome extension that can help you create high quality original content in different voices or styles with just a few clicks.

It makes use of natural language processing techniques to learn the meaning of words, allowing it to generate content in virtually any topic.

ContentBox Features that Stand Out

  • Rewrites entire sentences without losing their meaning
  • Uses Natural Language Processing to understand the meaning of words
  • 24/7 email support
  • Multilingual (11 languages)
  • 7-day money back guarantee

Wordtune is an AI-based tool for content generation and editing that helps you write cleaner, more compelling sentences.

It uses neural networks combined with natural language processing technology to better understand the context of what you're trying to say and turn it into an engaging message that perfectly fits your writing voice.

Wordtune Features that Stand Out

  • Recognizes grammar mistakes based on context
  • Recognizes the emotional tone of the content
  • Sentence rephrasing
  • Generates contextually relevant synonyms for any word
  • Shorten or expand your text to fit your needs

Grammarly is a great tool for avoiding the pesky grammar errors that sometimes slip through.

While not a full-fledged AI-based content generator, its advanced AI-enhanced grammar, spelling and punctuation checker will give you helpful suggestions on how to improve the quality of your writing.

In addition to suggesting changes Grammarly also offers a plagiarism checking tool, a very handy feature when creating long-form content.

Finally, you can easily integrate it with the most popular word processors as well as WordPress to make sure every sentence flows smoothly before you publish it.

Grammarly Features that Stand Out

  • AI-enhanced grammar, spelling and punctuation checker
  • Integrates seamlessly with WordPress sites, Google Docs and Microsoft Word
  • Readability metrics
  • Tone and style checkers
  • Plagiarism checker
  • Word usage and sentence structure suggestions

Sapling is an AI writing assistant software that can sit on top of CRMs, email and messaging platforms.

It helps sales teams compose error-free responses to customers in order to provide personalized service, while also giving sales managers insights to supervise the quality of client conversations more effectively.

Saplings can catch and correct language problems better than traditional spellcheck tools thanks its AI-based autocomplete feature.

Sapling Features that Stand Out

  • Improves your writing with spelling, grammar, and autocomplete suggestions
  • Makes use of deep learning technology to generate natural sounding content recommendations
  • Provides AI-powered autocomplete suggestions across various CRMs and messaging platforms
  • Integrates with Gmail, Outlook, Linkedin, Zendesk, Salesforce , ServiceNow and more
  • Integrates with Google Docs via plugin
  • API available

TextBlaze is the perfect tool for anyone who's ever felt like they could use a little help when writing original text.

With it, you can create quick and easy snippets to insert anywhere — in blog articles, social media posts, instant messages, landing pages and so on. 

TextBlaze seamlessly integrates with the most popular email systems, SMS platforms and CRMs, allowing you and your team to share a library of snippets to make your business messaging uniform and more compelling.

Text Blaze Features that Stand Out

  • Speeds up your content creation work and maximize your productivity by using templates and snippets
  • Eliminates repetitive typing and mistakes.
  • Easy-to-use templates with endless customization and powerful automation
  • Sharing and collaboration
  • Text Blaze works with Gmail, Google Docs, LinkedIn, Salesforce, and many other platforms

14. Rytr


Rytr is a writing assistant that harnesses the power of Artificial Intelligence to help you create more compelling content by correcting your grammar, reformatting your sentences and rephrasing them if necessary.

This tool not only saves you time but allows you to focus on creating 100% original content without having to worry about grammar mistakes, typos or formatting issues.

Rytr Features that Stand Out

  • Autocorrect
  • Grammar Check
  • Tone checker
  • Sentence formatting
  • Sentence Rephraser
  • Plagiarism check
  • Engagement Metrics
  • Style Editor

Sassbook is an AI-based writing and summarizing software tool for digital marketers, bloggers and content writers.

The AI writer is very fast and produces 100% plagiarism-free original content. The AI Summarizer can condense any piece of long-form content into readable, SEO friendly document briefs.

Sassbook Features that Stand Out

  • Advanced AI summarizes and rephrases text
  • Produces great summaries rivaling human generated ones
  • Ideal for students, teachers, or anyone who needs to comprehend large amounts of text on a daily basis
  • API available

16. Writer


Writer is an AI writing assistant for teams.

It gives content creators the tools they need so that get everyone who writes on behalf of your company can follows similar rules, saving time and money as well as maintaining quality in all customers communications.

Writer Features that Stand Out

  • AI writer assistant built for teams
  • Organizes snippets into a library with tags, filters, and statuses so they’re easily findable
  • Set team rules for messaging goals, tone, style, words to avoid, referred terms, proper definition of industry terms, etc.

What is AI-Based Writing?

AI-based writing refers to the use of artificial intelligence as a means for composing content such as blog posts, ads, landing pages, marketing copy, product descriptions and other written work.

While there are many different types of AI writing programs, they all make predictions and suggestions based on what has been written before and then use machine learning techniques to create content like a writer would.

Can Artificial Intelligence Really Write Original Content?

Yes, artificial intelligence can produce 100% original content that's indistinguishable from that created by humans.

The reason is that these programs are trained to read immense amounts of content written by humans and then become writing experts through high-speed repetitive learning, typically done through the use of a neural network.

How Do AI Writers work?

Artificial intelligence represents the marriage of natural language processing and machine learning algorithms.

AI software engineers first "teach" a neural network what makes for compelling reading, either by examining samples of human prose or through sheer experimentation on its own.

After acquiring this instinctive knowledge over time and intense repetition, AI writers can mimic real-life writing with uncanny accuracy while generating text that's typo free and has perfect grammar.

What to Do Next

The best way to appreciate the capabilities of AI writing assistants to generate original text for your content project is to take them out for a spin.

Most of the above tools offer either free trials or a money back guarantee. To get a good sense of what they do, I recommend that you first try Jarvis.ai (the editor's choice) since it provides the most content creation options.

They offer a 7-day money back guarantee and an entry-level plan so you can assess if it's well suited to your needs.

About the author

Marcelo Beilin is a Digital Marketing Consultant and blogger who helps clients take their traffic and online revenue to the next level.

He also helps readers find the perfect tools to earn online income at BestTech2EarnOnline.com.

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