Description
This chrome extension helps you highlight text and add comments on web pages and PDF files. It is a practical browser extension for students, researchers, and professionals who work with websites daily.
π§© How It Works:
Select text and a floating button appears. Click it to create a persistent highlight. Click again to open an annotation bubble where you can add or edit comments and change colors. A side panel shows all annotations.
For rapid work, turn on Annotation Mode so every text selection instantly becomes a highlight. Power users use hotkeys: hold Alt or Option while dragging, and Enter or Esc to save or cancel notes.
π Who Is It For:
1οΈβ£ Students who need to annotate websites for research papers.
2οΈβ£ Researchers gathering sources and organizing findings online.
3οΈβ£ Knowledge workers reviewing industry reports and intelligence.
4οΈβ£ Professionals who read documentation and technical materials.
This annotate website extension works on almost any webpage and includes a built-in PDF viewer so you can also annotate PDF files. Whether learning how to annotate a website or know how to highlight text, this tool adapts to your workflow.
π― Core Functionalities:
β Create annotations and notes on web pages and PDF documents.
β Use Annotation Mode for rapid marking with automatic colors.
β Access all annotations through a scrollable side panel.
β Export highlights to Markdown, Plain Text, or HTML formats.
β Back up all data to a portable file and restore on profiles.
Privacy is built into the design. This website annotation tool stores all data locally in your browser storage. Your notes stay private and available offline. No registration required.
π‘ Key Benefits:
* Mark important passages on any website without disrupting reading.
* Organize research findings from multiple sources in one interface.
* Review and edit annotations quickly through the side panel.
* Export annotations in formats compatible with note-taking apps.
If exploring how to annotate a pdf or want to work with websites from your browser, this extension handles both web pages and documents. The built-in viewer provides the same annotation tools.
For speed, Annotation Mode is focused for power users. When enabled, every text selection automatically becomes a highlight. Configure it to open the note bubble for immediate comments.
π Key Advantages:
βΈ No external account keeps full control over data locally.
βΈ Annotation Mode and hotkeys for rapid highlight creation on websites.
βΈ Multi-language interface with instant switching.
βΈ Built-in PDF viewer removes need for separate pdf annotator.
βΈ Export page annotations and full snapshots for backups.
This annotate website tool focuses on reliability. Annotations reappear even on dynamic pages, thanks to robust anchoring.
Data export is straightforward. Export notes to Markdown, Plain Text, or HTML. Export a full snapshot of annotations, notes, and preferences to a portable file for import on another profile.
π Ideal Use Cases:
β Academic research: annotating website content for essays and reviews.
β Professional development: capturing insights from articles and studies.
β Content curation: gathering inspiration and references from the web.
β Technical documentation: marking up guides, API docs, and specs.
The side panel displays all annotations with snippets, colors, and timestamps. Click any card to jump to the original context.
This web highlighter is built as a super simple highlighter but offers power features when needed. When you need to annotate web content, this highlighter for websites provides an efficient solution.
Working with HTML content is seamless. You can highlight html text on any website and mark up documents. The extension handles html highlight text across dynamic pages.
β Frequently Asked Questions
β Where is my data stored?
π‘ All highlights and notes are stored locally in your browser storage.
β Can I use this as a pdf highlighter?
π‘ Yes, the extension includes a PDF viewer. Open any PDF file to highlight in pdf and add notes.
β How do I export annotations?
π‘ Open the side panel, click the menu, and choose Markdown, Plain Text, or HTML.
This online annotation platform provides an annotate website online solution for anyone who needs to engage with web content. The annotation website capabilities extend to both pages and PDFs.
If you are looking for a reliable solution to manage highlights on websites, this tool provides what you need. It serves as both a practical browser tool and an efficient way to keep organized locally.
Reviews (2 cached)
β
ββββ2026-01-30
R Witt
Perhaps there is a conflict with another app, but the markup pen does not appear on highlighted text, and there is no way to force it (e.g. shortcut) to enter a note.
β
β
β
ββ2026-03-05
Mike Moore
As far as I can see, this plugin does not annotate. It only highlights. Annotate - add notes to (a text or diagram) giving explanation or comment.
Permissions (7)
Permissions
contextMenusβΉ Can add items to the right-click menu favicon notificationsβΉ Can show desktop notifications scriptingβΉ Can inject scripts into web pages storageβΉ Can store data locally in your browser tabsβΉ Can see your open tabs and their URLs unlimitedStorage
Details
| Version | 0.9.5 |
| Updated | Jan 25, 2026 |
| Size | 8.27MiB |
| First Seen | Mar 24, 2026 |
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