6 of the Best Google Chrome Extensions to Annotate Text on the Web

Highlighting text on the Web is very useful when reading, researching or emphasizing specific text on a Web page to share online with friends. If you are using the Chrome browser, here are the best Chrome extensions to annotate text on the Web.

1. Hypothesis – Web & PDF Annotation


The Hypothesis – Web & PDF Annotation Chrome extension is a general purpose one for Web pages and PDF documents. You can use it to create notes, highlights, and replies. This is great if you want to make your research notes more organized and want to easily find stuff. You can also use it for discussions with friends. The extension allows you to leave public and private annotations, so be careful you don’t make an annotation public by accident when this note wasn’t meant for public eyes.

2. Yellow Highlighter Pen for Web

Yellow Highlighter Pen for Web does exactly what its name implies – it highlights in yellow portions of Web pages. You can create a shortlink to the page with highlights on it and share it on social media, email, etc.


The free version of the extension offers almost everything you’ll need. However, if you want more advanced features, such as no ads on your highlighted pages, you may want to have a look at the paid version.

3. Yawas – Web Highlighter


If you prefer to have more colors for highlighting different items, you will love Yawas – Web Highlighter. It’s another simple and straightforward Web annotation tool, but what makes it different is that you are free to choose the highlight colors you use. Most of its functions, such as changing highlight color, deleting highlight, etc., are accessible from the context menu and via keyboard shortcuts.

4. Annotate

Annotate is a Chrome extension specifically targeted to teachers and online classrooms. It’s more of a full-fledged online app than simply an extension. You can use it not only to leave notes and highlight text but also for assessment and collaboration. It works with many formats such as PDF, PPTx, Word, Google Slides, and SMART Notebooks.


This extension really has a lot of unique features such as annotations with voiceovers, reports to track students’ progress (including a gradebook), or the ability to publish privately and publicly. Annotate is a great choice if you are looking for a more feature-rich solution, but if you want a quick and lightweight notes tool, it’s not your best choice.

5. Kami – PDF and Document Markup


Kami – PDF and Document Markup is another feature-rich document annotation and markup extension. It works with Google Drive and Google Classroom and has tons of features, such as highlighting text, adding, underlining, and striking through it, voice annotation, freehand drawing, inserting images, shapes, and signatures, offline mode, etc., but it’s not free. It’s a very thorough professional app, so if you are a teacher or a student, this may be your best choice. If you are simply looking for a quick annotation tool, this certainly isn’t for you.

6. Diigo Web Collector – Capture and Annotate


For all Diigo fans, the Diigo Web Collector – Capture and Annotate Chrome extension is a blessing. You can use it to bookmark, archive, highlight, attach sticky notes, and mark up pages and portions of them. You can share all these on Twitter, Facebook, and Google Buzz. It has some cool features, such as the ability to search your Diigo library simultaneously while searching Google or to show highlights automatically.


Chrome annotation extensions come in many flavors – from small tools for simple text highlighting to full-fledged annotation and collaboration suits. Their features also vary, so if you try one and you don’t like it, just try another and hope you will have more luck with it.

Ada Ivanova Ada Ivanova

I am a fulltime freelancer who loves technology. Linux and Web technologies are my main interests and two of the topics I most frequently write about.

One comment

  1. Try this simple web page annotator, developed by me: https://chrome.google.com/webstore/detail/annotate-web-pages/emajnoacacifjgmkkmheackniabamonm

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