Diigo is a handy tool for bookmarking, highlighting, and annotating web pages. It has many features, but its old design and limited highlight colors might make it less appealing. | ||
Key Features A summary of the most important features offered by each extension. |
|
|
Our Rating Tooltivity's expert review score for each extension, based on hands-on testing and research. | 8.9 Winner in this category | 7.8 |
Total users Total active users across all major browsers: Chrome, Edge, Firefox, and Safari. | 1,000,000 Winner in this category | 200,000 |
Total ratings Total number of user ratings received across all supported browsers. | 26,670 Winner in this category | 2,319 |
Average rating Average user rating across all browsers, calculated from available store ratings. | 4.9 ⭐ Winner in this category | 4.6 ⭐ |
Entry Level Price The minimum price required to start using the extension. "Free" means a free tier is available. | Free | Free |
Chrome User rating and stats for the extension on Chrome browser. | ![]() 4.9 4.87 Average Chrome Web Store rating from the last 100 reviews 1.0M+Users Winner in this category | ![]() 4.6 3.56 Average Chrome Web Store rating from the last 100 reviews 200.0K+Users |
Edge User rating and stats for the extension on Edge browser. | - | - |
Firefox User rating and stats for the extension on Firefox browser. | - | - |
Safari User rating and stats for the extension on Safari browser. | - | - |
Features Tooltivity's expert score for the 'Features' aspect of each extension. | 9.5 The ChatGPT sidebar offers many useful AI functions that help with a wide range of everyday tasks, but can also help in the business sector. ![]() Users can access real-time data with Web Access, which is a huge advantage over other models. The multi-model group chat function enables users to communicate with several AI models at the same time and thus gain different insights. In addition, the tool supports interaction with images and files, allowing users to analyze images and chat directly with PDFs. These worked flawlessly in the test. Winner in this category | 8.5 Diigo offers basic features for a highlighter and bookmarking tool. It works well and we were able to highlight most websites and they were recreated when revisiting them. The highlighter popup makes it easy to highlight text offering 4 colors. It looks like this: ![]() We would have wished to have more color options. Also, note-taking and the tagging functionality are working, but its design does not look appealing. ![]() The dashboard where your highlights are stored works well and gives you an overview of all your highlights. ![]() |
Performance Tooltivity's expert score for the 'Performance' aspect of each extension. | 8.0 In testing, the performance of the ChatGPT Sidebar was good. You hardly notice any lag, which ensures a smooth and efficient browsing experience. Only the function of loading marked content directly into the sidebar via a pop-up, asking questions, or summarizing the content had a few problems. Sometimes it was not possible to click on the pop-up after highlighting. Winner in this category | 8.0 Diigo performs well in terms of highlighting and syncing across devices. The fact that highlights are always synchronized can cause some loading delays. It's not as fast as other highlighters that use an offline-first approach, but it works reasonably well. However, the unreliable link creation feature and the simple sidebar outliner design need improvement. Winner in this category |
Design Tooltivity's expert score for the 'Design' aspect of each extension. | 9.0 The ChatGPT sidebar is designed to be intuitive and user-friendly. Even the basic user should have no problems navigating through all the functions. The interface looks modern and aesthetically pleasing. Several customizable settings allow the tool to be adapted individually, but there could be a few more functions here. Winner in this category | 7.0 The design fulfills its functionality. The design of Diigo is outdated and could use a modern refresh. The lack of a nice overview of all your highlights on the page itself means you have to open the dashboard on diigo.com instead. The dashboard on diigo.com is okay, but other highlighters like Web Highlights have a much nicer user interface. |
Value for Money Tooltivity's expert score for the 'Value for Money' aspect of each extension. | 8.3 The ChatGPT Sidebar offers a free version with basic features and a limited number of queries. Winner in this category | 8.0 The free version of Diigo offers basic features and is fine for most users. The paid plans are reasonably priced and similar to other highlighters. However, we think other highlighters offer more value for the same price. |
Ease of Use Tooltivity's expert score for the 'Ease of Use' aspect of each extension. | 9.0 The ChatGPT sidebar offers an uncomplicated setup process, with the basics presented in the tutorial immediately after installation. Every user should have no problem using all the functions here, as they are also very clearly presented. Should questions or problems nevertheless need to be resolved, many users have commented in their reviews on how responsive the support team is. Winner in this category | 7.8 Diigo is fairly easy to use, but the sidebar outliner takes some time to get used to. You can't see all your highlights on the page itself, so you have to go to the dashboard on diigo.com. We wish there was a sidebar to quickly access all our highlighted pages, like in the Web Highlights extension. |
Security & Privacy Tooltivity's expert score for the 'Security & Privacy' aspect of each extension. | 9.7 Security and data protection are a top priority in the ChatGPT Sidebar. No personal data is collected in the extension. The user settings are saved locally so that the data remains private. The tool's transparent data protection guidelines and regular security updates set the extension apart from the competition. Winner in this category | 7.5 Diigo takes reasonable steps to protect user data. However, since you need an account and your data is stored in their database, absolute protection can't be guaranteed. We think a highlighter should work without needing to sign up, but this feature is missing in Diigo. |
Conclusion A summary of our findings and final thoughts for each extension. | The ChatGPT Sidebar is the perfect tool to improve productivity by integrating AI into daily browsing. The many features make it a valuable asset for personal and professional use. While it stands out for its functionality and ease of use, the premium price might be too high for regular users. Overall, however, it is a highly recommended tool for anyone who wants to use AI for their daily tasks. | Diigo is a handy tool for collecting stuff from the web, like bookmarks, highlights, and notes.
|
Our Recommendation | In our comparison between ChatGPT Sidebar and Diigo, ChatGPT Sidebar came out on top, scoring 8.9. ChatGPT Sidebar is the most widely used, with over 1 million users and 27k+ reviews—and it also delivered the strongest performance in our tests. User reviews for ChatGPT Sidebar reflect our findings, while we rate Diigo lower than users do. Notably, ChatGPT Sidebar has the highest user rating in the Chrome Web Store at 4.89, 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.
If you want a quick recommendation, ChatGPT Sidebar is our top pick. But as always, the best choice depends on what matters most to you. |