Hi there, we are sorry to hear of your concerns. We take data privacy very seriously, and work hard to ensure our service does not infringe on your right to privacy. You can read more in our policy here: https://www.leanlibrary.com/data-privacy/

With some of our core features (eBooks alternatives, article alternatives, highlight and search), our extension will require a few details to provide a seamless service. The extension scrapes the page for academic material IDs (ISBN and DOI) and based on this information, redirects you to a full text location. We do not collect any personal data (including browsing history) and we use highly advanced regular expressions (defined search pattern) when scraping pages to make sure our extension only picks up DOIs and ISBNs.

If you have any questions, please get in touch with us at support@leanlibrary.com and we will be assist you further.