Compare Quillbot and PDF & Web Highlighter: Which Extension is the Best?

Quillbot is an AI-powered writing assistant designed to enhance your writing with features like paraphrasing, grammar checking, and summarizing. Ideal for productivity and improving writing quality.
With Web Highlights, you can easily highlight text on any website or PDF and create notes. It's free and easy to use without signing up. In our eyes the best online PDF and web highlighter extension.
Key Features
  • Paraphrasing Tool: Rewrites your sentences to improve clarity and style.
  • Grammar Checker: Identifies and corrects grammatical errors.
  • Summarizer: Condenses long texts into shorter summaries.
  • Citation Generator: Helps you create citations in various formats.
  • Plagiarism Checker: Ensures your content is original.
  • Website Highlighting: Easily highlight text on any website.
  • PDF Highlighting: Mark up both online and local PDFs directly in your browser.
  • Multiple Colors: Use various colors to organize your highlights.
  • Note-Taking: Add notes to your highlights for better context.
  • Bookmarking: Save pages as bookmarks for quick access.
  • Tagging: Organize your highlights and notes with tags.
  • Cross-Device Sync: Sync highlights across devices via cloud.
  • Export Options: Export your highlights to Notion, Obsidian, HTML, Markdown, or as PDFs and HTML files.
  • Reminders: "Snooze" your bookmarks and get reminded about them by email
  • Flashcard learning: Begin a daily review session of your highlights to help move your research into long-term memory using a spaced repetition system.
Our Rating
8.7
9.8
Total users
4,485,643
112,723
Total ratings
3,036
3,860
Average rating
4.6 ⭐
4.8 ⭐
Entry Level PriceFreeFree
Chrome
Chrome Web Store logo
4.7
4.88
2.9K+ ratings
4.0M+Users
Chrome Web Store logo
4.8
4.80
3.8K+ ratings
100.0K+Users
Edge
Microsoft Edge Store logo
4.5
4.47
104 ratings
485.6K+Users
Microsoft Edge Store logo
4.7
4.69
67 ratings
11.9K+Users
Firefox
-
Mozilla Firefox Add-ons Store logo
5.0
5.00
24 ratings
795Users
Safari
-
-
Features
9.0

Paraphrasing Tool:
Quillbot's paraphrasing tool is one of its standout features. It offers multiple modes like Standard, Fluency, and Creative, allowing users to choose the level of rewriting they need. We found it particularly useful for avoiding plagiarism and improving sentence structure.

Grammar Checker:
The grammar checker is robust, catching errors that many basic spell checkers miss. However, it sometimes flagged correct sentences as incorrect, which can be a bit annoying.

Summarizer:
Quillbot's summarizer is effective for condensing long articles or papers. It provides concise summaries that capture the main points, making it a valuable tool for students and professionals alike.

9.8

Web Highlights offers a range of features. In addition to its main function of highlighting text on websites and PDFs, it provides much more, making it the ideal tool for learning and self-improvement.

Top Features of Web Highlights

1. Highlighting websites & PDFs:

Highlight text using Web Highlights

Web Highlights excels at one thing better than any other tool we tested—highlighting websites and PDFs.

You don't even need an account. Just visit any site, highlight the text, and a marker icon will appear, letting you choose from different highlight colors.

Once highlighted, your highlights are visible on the website. And the best thing: Your highlights will also be visible on the website if you reload the page.

You not necessarily need the highlighter popup to mark up some text. In general, there are three ways to create a highlight:

  • clicking the highlighter popup
  • right-clicking the selected text
  • using a keyboard shortcut (Mac: ⌥ + S, Windows: ALT + S)

In our tests, we could easily highlight several websites, and those highlights were effortlessly restored when revisiting them. It works seamlessly with both online and local PDFs.

Highlighted website with Web Highlights

All of your highlights are not only visible on the page but also accessible through the sidebar, which gives you a good overview of your highlights made.

This is much like the highlighter sidebar which is common in PDF tools like Acrobat.

Here is how it looks:

Web Highlights Sidebar

The sidebar gives you an outline of your highlights on the current page.

2. Create Notes & Tags:

Taking notes made easy

You can either create tags & notes by using the sidebar or by clicking on a highlight on the page. This will open up a popup allowing you to add tags and notes to a specific highlight.

Any changes you make on the pages are also directly visible in the sidebar. Making it a perfect research tool to work with large articles.

Inside the sidebar you can then find all your highlights and bookmarks listed for the given tag.

3. Web App:

Web Highlights Dashboard

The best thing about Web Highlights is, that it can synchronize all your research to the corresponding web app at app.web-highlights.com.

The web app can be opened in your browser but works perfetly on your phone. If you have opened the website before, you can even access your research when you are offline.

The dashboard of the app shows all of your research in one place in a beautiful overview. You can also filter for specific tags or websites.

4. Save Bookmarks:

How to save bookmarks using Web Highlights

Web Highlights isn't just for highlighting text—it’s also great for saving pages as bookmarks. This way, you can either come back later to continue highlighting or easily find the page again.

5. Email reminders

Setting email reminders with Web Highlights

A standout feature of Web Highlights is its email reminder, which works a lot like "snoozing" emails.

You can set a reminder for a specific date and time by clicking the clock icon on a highlighted page. Web Highlights will then email you the article so you don’t forget to revisit it.

This feature is unique among competitors, and we use it daily to get reminders for websites we need to return to later.

6. Export to Notion, Markdown, and more

Export to Notion

Web Highlights gives you plenty of export options. With the Markdown export, you can easily send your research to any Second Brain or PKM tool you prefer.

On top of that, it directly integrates with Notion and Capacities through full API connections.

For instance, if you're on a highlighted page, just click the three dots in the sidebar and choose "Export to Notion." In seconds, a Notion page will be created. The same process works for Capacities.

Performance
8.8

Quillbot performs well with small to medium-sized texts, but it can slow down when processing larger documents.

10

The extension performs seamlessly, allowing you to highlight websites and PDFs without any lag or interruptions.

The full-text search functionality is quick and accurate, enabling you to find your highlights effortlessly. Additionally, the ability to sync your highlights across devices ensures that you can access your research from anywhere, enhancing your productivity.

The best part is that the web app works entirely offline. So, you can access your research from any device, even without an internet connection.

Design
9.0

User Interface:
Quillbot boasts a clean and intuitive interface. The layout is straightforward, making it easy for users to navigate through different features without any hassle.

Customization:
The tool offers various customization options, such as different paraphrasing modes and the ability to adjust the length of summaries. These features make it adaptable to different writing needs.

9.9

The design is clean and intuitive, making it easy to get started right away. We loved the customizable highlight colors and the overall look and feel of the sidebar.

What users love most is the intuitive sidebar and the well-organized web app. It’s super easy to navigate and quickly find what you need.

The web app also looks great on mobile devices, making it simple to access the articles you've read on your phone.

Value for Money
9.0

Free vs. Paid:
While the free version offers basic functionality, the premium plans unlock a wealth of features that significantly enhance the tool's utility.

Cost-Effectiveness:
Compared to its competitors, Quillbot is slightly cheaper than Grammarly but more expensive than LanguageTool. From our perspective, Quillbot doesn't offer more value than LanguageTool, so we believe it should be priced similarly. However, it currently offers significant discounts on their plans, which makes it a very good investment in your writing.

9.5

Web Highlights can be used for free without signing up, providing access to a wide range of offline features.

To fully enjoy the benefits of Web Highlights, including accessing your highlights and bookmarks from anywhere with automatic cloud-sync, you can upgrade to the PREMIUM or ULTIMATE version of the extension.

The pricing plans are affordable, making it a cost-effective solution for students, researchers, and avid online readers. No other tool gives you this much value for so little cost.

Ease of Use
7.8

Quillbot's onboarding process is impressive, and the tool is easy to use right from the start. We quickly grasped most of its features. However, when compared to top competitors like Grammarly, it doesn't feel quite as natural or seamless to use.

9.5

We can’t think of a simpler Chrome Extension to start with than this one. The best part? It works seamlessly right out of the box, no account needed.

Installing it is a breeze, and you can easily add the extension to both Google Chrome and Microsoft Edge.

Once installed, a highlighter pop-up appears whenever you highlight text on any website. The process is intuitive and easy to grasp.

If you need help, Web Highlights offers plenty of blog posts that guide you through its features.

With so many powerful features, Web Highlights might seem a bit overwhelming at first, but everything falls into place quickly. The tagging system, in particular, is easy to use and much simpler than traditional folders.

That’s why we rate it 9.5 out of 10. It’s extremely user-friendly, though some features might take a little time to fully appreciate.

Security & Privacy
8.8

Data Handling:
Quillbot ensures that user data is encrypted and securely stored. However, like many AI tools, it does send data to its servers for processing, which may raise privacy concerns for some users.

Third-Party Services:
The tool uses third-party services for certain features, which could lead to data being processed outside of the EU. Users should be cautious when handling sensitive information.

9.9

In the Security & Privacy category, we give Web Highlights a solid 10/10. The fact that you can use this tool offline without needing an account sets it apart from its competitors.

Even if you opt for cloud sync by creating an account, Web Highlights puts data privacy first. Your highlights, notes, and tags are visible only to you by default unless you decide to share them.

Your data isn’t sold to third parties, nor is it used or transferred for anything beyond the extension's core functionality. This dedication to data privacy ensures your information stays secure and confidential.

Conclusion

Quillbot is a flexible AI writing tool that does a great job with paraphrasing and grammar checking.

While it has a few minor downsides, like occasional mistakes and some privacy concerns, its overall performance and affordability make it a solid choice. In the end, choosing the best writing tool is also a matter of personal opinion. If you want to improve your writing and boost productivity, Quillbot is definitely worth a look.

However, it still cannot compete with Grammarly as the best writing tool in this category. In our eyes, Grammarly is worth the more expensive price.

We have been using Web Highlights - PDF & Web Highlighter for years and can confidently say it’s a top-notch tool for anyone who spends a lot of time reading online.

Its user-friendly design and powerful features make it a must-have for students, researchers, and professionals alike. The free version is fantastic, but if you need more advanced features, the premium options are well worth the price.

If you’re serious about staying organized while reading online, we highly recommend giving Web Highlights a try.

Our Recommendation

In our comparison between Quillbot and PDF & Web Highlighter, PDF & Web Highlighter came out on top, scoring 9.8.

Quillbot is the most widely used, with over 4 million users and 3k+ reviews, but PDF & Web Highlighter outperformed it in our review. User reviews reflect our findings.

Notably, PDF & Web Highlighter has the highest user rating in the Chrome Web Store at 4.83, which supports its strong performance in our review.

There are some noticeable differences between these extensions, so it's worth considering your priorities and the details below.


  • Looking for the richest feature set? PDF & Web Highlighter stands out with a rating of 9.8. On the other hand, Quillbot lags behind in this area with a rating of 9.
  • Need top performance? PDF & Web Highlighter stands out with a rating of 10. On the other hand, Quillbot lags behind in this area with a rating of 8.8.
  • Design lovers, take note: PDF & Web Highlighter stands out with a rating of 9.9. On the other hand, Quillbot lags behind in this area with a rating of 9.
  • Want to get the most for your money? PDF & Web Highlighter stands out with a rating of 9.5. On the other hand, Quillbot lags behind in this area with a rating of 9.
  • If you hate complicated tools, PDF & Web Highlighter stands out with a rating of 9.5. On the other hand, Quillbot lags behind in this area with a rating of 7.8.
  • With privacy and security becoming ever more important, PDF & Web Highlighter stands out with a rating of 9.9. On the other hand, Quillbot lags behind in this area with a rating of 8.8.

If you want a quick recommendation, PDF & Web Highlighter is our top pick. But as always, the best choice depends on what matters most to you.