BitBulb

BitBulb: Open-Source Web Annotation Tool

Open-source alternative to Hypothes.is and Genius, BitBulb enables users to annotate webpages for collaboration, research, and online discussions.

What is BitBulb?

BitBulb is an open-source web annotation browser extension that allows users to highlight, annotate, and comment on webpages to engage more deeply with online content. It serves as an alternative to proprietary tools like Hypothes.is and Genius.

Some key features of BitBulb include:

• Adding highlights, text notes, comments, and questions to webpage content
• Annotations are public by default, allowing for collaboration
• Ability to create private/unlisted annotations
• Support for annotating PDFs and ePub ebooks in addition to webpages
• Web clipper to save annotated pages to access later offline
• Available as a browser extension for Chrome, Firefox, and Edge

As an open-source project under an MIT license, BitBulb places no restrictions on modifying or distributing the software. This makes BitBulb useful for a variety of purposes - collaborating with colleagues, enabling discussions for students, conducting research, annotating literature, engaging deeper with online content, and more. Its simple, intuitive interface makes it easy for anyone to highlight, annotate, and build on existing ideas.

BitBulb Features

Official Links