10 Best Paraphrasing Tools For Thesis & Research Papers

If you must paraphrase your thesis and research papers, you should do it intelligently to avoid plagiarism. In fact, you should not paraphrase manually to avoid errors and stress, especially when you’re not a linguistic expert.

Nevertheless, there are several paraphrasing tools out there that you can use. Check out the top 10 ones

10 Best Paraphrasing Tool For Thesis & Research Papers


This paraphrasing tool makes use of state-of-the-art AI. To millions of people, it’s the best paraphrasing tool out there.

This tool is a full-sentence thesaurus, so aside from paraphrasing, it can be used to check for grammar and summarize works.

The QuillBot paraphraser features 7 different modes. There’s standard, fluency, creative, creative plus, formal, shorten, and expand modes. The mode to use depends on your intent.

For instance, you get a natural and simple writing tone with fluency mode, while the formal mode makes your work more professional for a formal audience. Notably, the expand mode increases your write-up’s length research by infusing more words.

To edit words, you should use the Word Flipper tool. It simply replaces words with synonyms. You can set the rate at which the Word Flipper replaced words by adjusting the slider setting.

You can use QuillBot directly in Microsoft Word by using its Word extension. Not to mention, this software also features extensions and add-ins for Google Chrome and Google Docs. With its API, you can integrate QuillBot into several other web platforms.

QuillBot Premium Pricing

With a free QuillBot account, you can only paraphrase 700 characters at a time. This would take quite a bit of time if you’re paraphrasing research papers or a thesis. The premium account, on the other hand, allows you to paraphrase up to 10,000 characters.

Below are the available premium pricing plans:

  • Monthly Plan – $7.95 every month
  • Semi-Annual Plan – $29.50 every 6 months
  • Annual Plan – $39.95 every year

The QuillBot Developer API is premium too; there’s no free version available. The pricing plans include:

  • Pro Plan – $20 per month
  • Ultra Plan – $150 per month
  • Mega Plan – $1,300 per month

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Spinbot is another solid tool that gives QuillBot a run for its money.

Spinbot is described as a text rewriter, article spinner, and content creating tool. It’s freemium, but you can do a lot with the free version as it lets you paraphrase up to 10,000 characters. Hence, Spinbot is ideal for paraphrasing thesis and research papers.

You can set the tool to ignore specific words when paraphrasing or ask it to ignore capitalized words. The tool works instantly and you get your paraphrased result within seconds.

Furthermore, Spinbot requires no registration. The only thing you have to do is to complete a CAPTCHA to prove you’re human.

Spinbot doesn’t feature extensions but the platform features an API. The API lets you use Spinbot on any website and will help in paraphrasing large numbers of text. However, it requires premium payment.

Spinbot Pricing

With a premium Spinbot account, you can paraphrase your thesis and research works without completing any CAPTCHA or getting disturbed by ads. That’s the only advantage of a premium account and the prices include:

  • 1 Month Plan – $10 every month
  • 6 Months Plan – $50 every 6 months
  • 1 Year Plan – $75 every year

As an alternative, you can go with purchasing Spin credits. That way, you can pay based on the number of words you spin as credits are only exhausted when you use the tool. Prices for credits include:

  • 1,000 Credits – $5.00
  • 5,000 Credits – $20.00
  • 10,000 Credits – $40.00
  • 20,000 Credits – $80.00
  • 50,000 Credits – $200.00
  • 100,000 Credits – $400.00
  • 200,000 Credits – $800.00
  • 500,000 Credits – $2,000.00

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Spin Rewriter

This is an article spinning tool that was developed to aid SEO specialists. Nevertheless, it works perfectly for paraphrasing research works. The tool was launched in 2009 and it is currently being used by close to 200,000 people. With ENL technology, Spin Rewriter is super-efficient.

Using Spin Rewriter is very simple. Input your text and click on rewrite to paraphrase. It takes seconds for the rewrite to complete and after that, you export your article in a preferred format. A major advantage of using Spin Rewriter is that you can export multiple articles.

For instance, you can get about 1,000 variations of the original research work. This is known as mass export. Similarly, Spin Rewriter can simultaneously rewrite several articles. You also get to choose between five popular syntax styles for the best structure for your thesis.

The tool features a side-by-side comparison. This allows you to compare words from your original articles to the new words used in the paraphrased version. The differences between the texts are highlighted and you can easily spot the uniqueness in the new text.

Spin Writer is cloud-based. As a result, you can use it on any device type including laptops, desktops, tablets, and mobile phones. To guide you in using the tool, the website features various instructional video tutorials.

The tool features an API and also integrates with several third-party platforms. However, these integrations are mainly for SEO purposes.

Spin Rewriter Pricing

Spin Rewriter is not a free paraphrasing tool. It only has a free 5-day trial for the yearly plan. The premium pricing plans include:

  • Monthly Plan – $47 per month
  • Yearly Plan – $77 per year
  • Lifetime Plan – $497 per year

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If you need a thesis paraphraser for team collaborations, SpinnerChief is recommended. Currently, in its 6th version, it uses artificial intelligence (AI) to guarantee a high level of uniqueness. SpinnerChief also utilizes statistical replacement technology and part-of-speech analysis.

The statistical replacement technology ensures that the software uses the statistically most appropriate synonym to use. It features a cloud thesaurus that steadily expands as users can add synonyms of words they want to work with.

With its batch spin feature, you can spin thousands of works in a very short time. You can upload a folder or select a selection of different work files for the tool to paraphrase at a time.

Also, you can manually paraphrase text or customize the paraphrasing rules to meet your interest.

Notably, you can use SpinnerChief on thesis and research papers of different languages including German, French, Spanish, Swedish, Dutch, Indonesian, Portuguese, etc. For this to work, you’ll need a translation API like the Bing API.

Compared to other paraphrasing tools, SpinnerChief is not just web-based. It has both desktop and mobile versions. Hence, it supports Windows, Mac, iOS, and Android. Notably, there’s a team version that lets multiple users work on specific tasks from different computers.

SpinnerChief Pricing

SpinnerChief can be used for free with the basic features. The premium versions let you do more and the pricing plans include:

  • Elite Version – $197 one-time fee
  • Ultimate Version – $107 per year ($307 one-time fee)
  • Team Version – $277 per year ($627 one-time fee)

Furthermore, you can try the premium version for $7. With any of the premium versions, you get the ContentBomb tool (for generating content) for free.

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CleverSpinner is a one-click paraphraser that is ideal for thesis and research works.

It rewrites words similar to a normal content writer by analyzing word by word, phrases, and sentence levels. With a perfect understanding of the context and meaning of words, the tool can choose only the correct and best synonyms.

To access the CleverSpinner paraphraser, you need to first create an account. Nevertheless, the user interface is relatively efficient and easy to use. You should simply input your content in the box and select spin. In about 10 seconds, your text will be rewritten with ideal synonyms.

The paraphraser works with some default settings that you can easily adjust to your preference before spinning. This includes the rewrite quality, synonym frequency, sentence spin, CS, and the editor settings.

For the spin quality, there are eight options to choose from. If the editor is disabled, the tool only lists out possible synonyms for texts and you manually choose which to replace.

CleverSpinner lets you compare your original text and paraphrased text side by side, and it supports bulk spinning. With this feature, you can upload multiple work files in a zip file and paraphrase all of them at once. However, for this to work, the work files should be in txt format.

This paraphrasing tool integrates with Copyscape so you can directly check for plagiarism in your works. Also, it features an API for flexible custom integration. It is web-based only and best accessed from a desktop than a mobile device.

CleverSpinner Pricing

CleverSpinner uses a simple and affordable monthly pricing model.

  • Monthly Plan – $9.90 per month

Note: With its 3-day free trial, you get unrestricted access.


As the description states, this is a word rewriting tool that uses artificial intelligence. The tool works automatically and employs a high level of paraphrasing such that the text could pass any plagiarism analysis as 100 percent authentic.

WordAi is a paraphrasing tool that works very fast. The latest version works about 150 times faster than the older version and your thesis and research works could be rewritten in an instant. You can upload up to 1,000 articles and spin them at the same time.

Notably, this tool is one of the best when it comes to paraphrasing text titles. It features an intelligent title spinner known as the “title brain”.

Like some thesis paraphrasing tools mentioned, you cannot make use of WordAi unless you create an account. After that, you can use the tool free for three days and then pay for a premium plan.

Conversely, WordAi integrates with Anti Forge. Hence, if you own an Anti Forge account, you can easily transfer generated content to WordAi and paraphrase. This is great if you’re sourcing content for your thesis and research from the internet.

The software also integrates with Perfect Tense, which facilitates efficient grammar checks. Plus, WordAi features an API too. You can use WordAi to paraphrase words in Italian, Spanish, French, and English.

WordAi Pricing

To use WordAi, you can go with any of these pricing options:

  • Monthly Plan – $49.95 per month
  • Yearly Plan – $347 per year

The WordAi API is premium too and it costs $2 per 10,000 words. If you intend to process larger amounts of words, you contact the developers to discuss a better pricing plan.

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The Best Spinner

Trusted by over 90,000 users, this paraphrasing tool lets you turn any work into dozens of new ones. The tool uses an Instant Pin feature, hence paraphrasing text takes no time.

The Best Spinner boasts of having the world’s largest synonym thesaurus from where it draws the best synonyms to paraphrase your work.

With this tool, you can paraphrase your work in different levels, depending on the results you want. The tool has automatic full sentence rewriting functionality and there are four nested levels featured. A visual spinner is featured for creating spun documents. Also, after paraphrasing your text, you can compare it with the original side by side.

If you’re creating an electronic thesis, you’ll find The Best Spinner reliable thanks to its featured text-to-speech technology. This technology lets you automatically generate audio and MP3 files from written text.

The tool integrates with ArticleBuilder to supply users with content – Seed Articles. As a user of The Best Spinner, you have access to more than 130,000 built-in articles from ArticleBuilder which can go a long way in helping you construct your thesis. In addition, The Best Spinner gives you access to up to 1.7 GB of high-quality images.

The Best Spinner also integrates with Copyscape via the API so you can check your paraphrase work to ensure that it is unique and free from plagiarism.

In terms of compatibility, The Best Spinner is compatible with different device types including Windows PC, Mac, and Android & iOS tablets. For mobile, it can be used via the web.

The Best Spinner Pricing

The Best Spinner features three premium pricing plans, which include:

  • Basic Plan$67 per year
  • Standard Plan – $127 per year
  • Pro Plan – $297 per year

Content Professor

Content Professor is described as the world’s easiest article spinning system. It’s a full web-based paraphrasing tool and doesn’t require any software download or installations to use. As a result, you can use Content Professor on any device type and with any browser.

Notably, Content Professor features a global online synonym thesaurus. As a user, you can request for any synonym to be added or removed from the thesaurus. You’re assured of getting the best synonyms in your work thanks to the synonym quality algorithm. This algorithm ranks synonyms according to their relevance.

This paraphrasing tool is a flexible one. It supports different spin syntax formats and mass article creation. There’s the Quick Rewrite Mode that helps you manually paraphrase your work by outlining the best synonyms for you to select. It also helps you avoid overusing a particular synonym.

You can create a personal synonym thesaurus from scratch and the tool will only make use of those words. Also, you can create an excluded word list to prevent the tool from using specific synonyms. Content Professor is a multilingual paraphrasing tool. In addition to English, the tool supports Spanish, French, and German.

If you want to source content for your thesis, Content Professor features a massive PLR search engine that enables you to access over 100,000 PLR works. Likewise, the tool features a duplicate content checker to verify the uniqueness of your paraphrased work.

Content Professor Pricing

The Standard version of the Content Professor tool is free to use. However, it has a 90-second wait time and a maximum of one saved project, amongst other limitations.

For full access, the following plans are featured:

  • Pro Quarterly Plan – $9.99 per month ($39.96 every 4 months)
  • Pro Monthly Plan – $19.95 per month


Here is another great paraphrasing tool for thesis and research works on our list.

SpinnerCMS works as a word rephraser and article spinner. It does more than simply replacing words with their synonyms as it replaces contextual words. With deep learning using a very advanced AI process, the tool paraphrases text with a high unique percentage.

The tool paraphrases text at both word and sentence levels. There’s a rundown tab at the right as you work. This tab analyzes your work and displays the total number of words, percentage of words with synonyms, and percentage of words without synonyms. As you work, this gives you insight into how much of your thesis has been paraphrased.

The interface is designed as a studio, so using SpinnerCMS is easy. You can compare the original work with the generated one simultaneously. In fact, you can manage up to 36 files at a time.

Likewise, it incorporates valuable features like drag-and-drop functionality, adds between words, group spin, bulk spin, and extra word quota.

If your thesis and research papers contain images, you can directly edit them using its built-in image editor. Also, SpinnerCMS features a text to audio tool.

SpinnerCMS can be used for free and there’s also a premium version. Word quota in SpinnerCMS is counted as each processed word replaced with synonyms or contextual words. With the premium plans, you get a 60,000 and 720,000-word quota respectively.

You can make use of SpinnerCMS on the web via any browser. It also features an application for Android mobile devices, which will help you paraphrase text conveniently.

SpinnerCMS Pricing

Below are SpinnerCMS pricing plans:

  • Premium Monthly Plan – $14.90 per month
  • Premium Yearly Plan – $149 per year

Chimp Rewriter

Like most paraphrasing tools for thesis revision, this one uses Natural Language Processing (NLP) and AI technology to analyze and rewrite the content and it works very quickly.

When you paste your work in Chimp Rewriter, the first thing the software does is it reads and understands the text as a normal user would.

Next, it reproduces the text using new words with a different language structure. In so many ways, the paraphrased work is different from the original work.

Chimp Rewriter supports different languages including English, French, German, Italian, and Spanish. The software features different spell checkers, thesaurus, etc. in each of these languages. Notably, it’s very easy to switch between languages as you write.

With the Chimp Rewriter API, you can link the tool with other software for more functionality. You can only use Chimp Rewriter on a Windows PC as it is a desktop application. Unfortunately, there are no versions for Mac, iOS, or Android.

Chimp Rewriter Pricing

Chimp Rewriter doesn’t have a free version and you can pay for the tool either monthly or yearly. The pricing plans include:

  • Monthly Plan – $15 per month
  • Yearly Plan – $99 per year

Note: Before paying for a premium plan, you can try the tool for 14 days without payment.

Wrapping Up – What Is The Best Paraphrasing Tool For Thesis & Research Papers?

The tools listed above are great for paraphrasing theses, research papers, and other academic works. But, the best tool among them all is QuillBot.

Apart from featuring seven paraphrasing modes, QuillBot can generate summaries for write-ups. Not to mention, it has affordable pricing plans, unlike the other paraphrasing tools mentioned above.

About Author

Tom loves to write on technology, e-commerce & internet marketing. I started my first e-commerce company in college, designing and selling t-shirts for my campus bar crawl using print-on-demand. Having successfully established multiple 6 & 7-figure e-commerce businesses (in women’s fashion and hiking gear), I think I can share a tip or 2 to help you succeed.