It comes as no surprise that you are a little confused when deciding to use QuillBot or SpinBot. They are both paraphrasing tools and have quite similar interfaces at first glance.
We have used and tested both of them. And to be honest, it doesn’t take us long to figure out which is better. In this match, QuillBot excels SpinBot in most aspects, including paraphrasing features, performance quality, and accuracy.
Having said that, we will continue to dive into this QuillBot vs. SpinBot comparison, analyzing all of their strengths and weeknesses to help you understand each platform deeply.
Let’s begin!
QuillBot is one of the most popular AI paraphrasing tools currently available. It’s well-known among students, digital marketers, and professionals worldwide thanks to its capability to deliver rewritten content that’s high-quality and anti-plagiarism.
We have been using QuillBot for years to streamline our content work. Rewriting is the most used feature, and we value how QuillBot attempts to refresh content until it meets our desires.
Besides, QuillBot can help us check grammar and plagiarism. If you need to summarize an article or generate citations for your thesis, QuillBot can also perform it well.
You can check out our full QuillBot review for more information.
Considered one of the best free QuillBot alternatives, SpinBot is also an AI tool that specializes in rewriting text passages. It offers a super simple approach to paraphrasing. However, this simplicity somehow tells the quality of its outputs. (We’ll discuss this aspect in detail later).
SpinBot also has quick tools for grammar checking and summarizing content. However, they are less versatile than what QuillBot offers.
Here’s a short QuillBot vs. SpinBot comparison:
| QuillBot | SpinBot | |
| Pros | – Intuitive interface
– Multiple paraphrasing styles – Additional features with better performance – Better rewriting quality – Detailed analysis and report – Multiple extension options – No registration required for the free plan |
– Simple interface
– Free to use – No account sign-up or login |
| Cons | – A free plan with some limitations | – Limitation in paraphrasing modes and other features
– 10,000 characters per paraphrasing only – Lower rewriting quality – No extensions – No plagiarism tool |
| Extensions and apps | – Chrome and Word extensions
– MacOS and mobile apps (iOs and Android) |
– Not available |
| Customer support | – Fill-in form
– Live chat – QuillBot Help Center |
– A fill-in form to send out your queries |
| Price | – Free plan
– Premium plan starting at $4.17/month (billed annually) |
– Free |
Now, let’s go into detail!
Let’s first compare the ease of use and extension options of the two platforms.
What both of them share in common is that they are free to use without creating an account. Just head to their sites and paste your text. Is there any shortcut to that?
Another commonality is the side-to-side canvases for content input and output, which we highly value because they help us compare the two versions.
And that’s it for SpinBot!
SpinBot User Interface
In our opinion, QuillBot’s interface is more intuitive. While offering more features, QuillBot maintains a well-structured design to help you easily navigate and make the most of its functionality.
Moreover, QuillBot sets different formats for words or sentences changed to help us easily review paraphrased texts. SpinBot does not offer visual cues for changes. Well, it’s challenging to identify what changes they’ve made in our texts.
QuillBot User Interface
Regarding extensions and apps, QuillBot undoubtedly outperforms SpinBot. While SpinBot is available to use on its web page only, QuillBot facilitates Chrome and Word extensions. There’s also a QuillBot app for MacOS and mobile phones.
Key takeaway: Both QuillBot and SpinBot have a user-friendly interface. However, if you prioritize a streamlined experience, QuillBot is the better choice.
Recognized as one of the best AI paraphrasing tools today, QuillBot impressed us with its multiple writing modes that help tailor content to the right tone and style. Whether you’re rewriting academic texts, marketing copy, or casual blog posts, it offers the flexibility and accuracy needed for quality outputs.
If you use QuillBot for free, its Standard and Fluency modes will rewrite your texts at the basic level and improve readability. With the premium version, you can choose among seven other modes to meet your desired tone and style. For instance, choose Formal when you write emails or Academic for dissertification.
Thanks to these strengths, QuillBot is a top choice for paraphrasing tasks. Still, if you’re curious how it compares to a more general AI tool, check out our QuillBot vs. ChatGPT breakdown to see which one fits your needs better.
QuillBot vs. SpinBot – QuillBot Paraphraser
SpinBot, on the other hand, says it gives users three writing modes (Short, Medium, and Long). Well, we tested them all, and it turns out that, as we suspected, they just changed synonyms to make the test longer or shorter. There are no clearly defined writing styles between these modes.
Here are extra features of QuillBot’s paraphraser that are absent from SpinBot:
– “Rephrase” button to let you choose up to four variations each time
– Thesaurus to help you find a better synonym to replace written words
– Synonyms slider to decide the level of changes
– The ability to paraphrase content in more than 25 languages
Key takeaway: We totally lean towards QuillBot at this round since it gives us diverse modes to freshen our content. While SpinBot allows for quick rewriting, it lacks the complexity and customization options found in QuillBot.
You may be interested in:
QuillBot vs. Wordtune: Which is The Better Paraphrasing Tool in 2025?
Both platforms have a built-in grammar checker that identifies and edits basic errors regarding grammar and spelling. If you use the QuillBot premium plan, it provides advanced recommendations to improve phrases or sentences for better quality.
We tested this feature of both tools. Here’s what QuillBot performs:
Testing QuillBot Grammar Checker
Here’s the result of SpinBot:
Testing SpinBot Grammar Checker
Basically, they’ll spot simple grammar errors. However, we realized that QuillBot understands the text context better and gives more reasonable suggestions.
Besides, we’ll use QuillBot instead of SpinBot to check grammar for:
Key takeaway: QuillBot is better at grammar checking since it has more functionality and better recommendations.
If you’re also considering tools that specialize in grammar correction, check out our QuillBot vs. Grammarly comparison to see how QuillBot stacks up against one of the most trusted names in proofreading
You may be interested in: ProWritingAid vs QuillBot: Which Is the Better Grammar Checker in 2025?
This is the third (also the last) common feature of QuillBot and SpinBot.
Well, by the time we tested how Spinbot summarizes texts, we knew who won in this round. Though it’s marked as a “new” feature, there’s no result when we click the “Basic Summarize” command. Maybe it’s still updating!
QuillBot, meanwhile, handled the task much better. It lets you paste text or upload a document and generate summaries in paragraphs, bullet points, or custom formats, easily making it one of the best AI summarizers we’ve used.
Key takeaway: Apparently, QuillBot is the winner. Use this time-saving feature to create study guides or extract key points from research papers.
Unlike SpinBot, which lacks this function entirely, QuillBot includes a plagiarism checker as part of its premium plan — a handy addition for those needing an all-in-one writing tool. It even earns a spot among today’s best AI plagiarism checkers, especially for students and content creators.
Picture this: You paraphrase content and then check for plagiarism on the same platform. Convenient, right?
QuillBot provides a detailed report showing how much of your text matches online sources. It highlights identical phrases or sentences and links to the matching pages. Scanning may take a bit of time, but the results are clear and actionable.
Testing QuillBot Plagiarism Detecting
Key takeaway: So far, QuillBot has done well at spotting plagiarized content. That said, it would be even better if it suggested edits right inside the report.
This is what we’ve concluded after using QuillBot and SpinBot (see our examples for a better idea):
Regarding output quality, Quillbot surpasses Spinbot by far. The main reason is that it employs AI to comprehend the content before rephrasing it. That’s why you can rely on QuillBot to paraphrase text while maintaining its meaning.
QuillBot vs. SpinBot – QuillBot Paraphrasing Output
On the contrary, Spinbot just replaces words with synonyms. Sadly, it does not develop the ability to understand the context before rewriting.
SpinBot Paraphrasing Output
Key takeaway: Both platforms are born with the paraphrasing feature. However, they approach it in different ways. SpinBot aims to rewrite the content as fast as possible (which is why it’s also perceived as a content-spinning tool), whereas QuillBot prioritizes the quality and accuracy of the outputs.
If you’re looking for a more advanced rewriting tool, you might also consider exploring Outwrite. For a detailed comparison of these tools, check out our Outwrite vs. QuillBot guide.
The last time we checked, SpinBot was totally free. However, you might find other sources listing its prices, and the information might be outdated.
QuillBot Pricing Plans
QuillBot offers two plans:
You may be interested in:
Paperpal vs QuillBot: Which AI Writing is the Best for Academics in 2025?
QuillBot vs. Jasper AI: Which is a Better Writing Assistant in 2025?
We guess you found the answer. QuillBot defeats SpinBot in this battle. This is a result of possessing diverse paraphrase options, high rewriting quality, effective extra features, multiple extension options, and more.
We’ve walked you through the exciting QuillBot vs. SpinBot matchup. While QuillBot defeats SpinBot so far, the decision is still up to you.
If you appreciate precision, control, and multi-tasks, QuillBot is an excellent option. However, if you’re on a low budget and merely need simple paraphrasing for short texts, SpinBot may be a QuillBot alternative. Of course, it needs human touches for better drafts.
Do you have any questions about these tools? If so, leave a comment below so that Techdictionary can discuss them with you!
Related Articles:
Can Spinbot Be Detected? The Truth Revealed in 2024
Does Turnitin Detect QuillBot? The Truth Was Tested in 2024
Can GPTzero Detect QuillBot? We Tested 4 Modes to Prove!
QuillBot is better than SpinBot in terms of paraphrasing, grammar checking, plagiarism detection, etc. It provides users with more diverse writing modes, higher paraphrasing quality, better customer service, and more.
Yes, QuillBot is a safe and reliable tool to use. It helps you create a fresh version of your content but not breaking its core meaning. However, double-checking is still essential while using QuillBot.
