Book Reader is a small, minimalist book reader. It runs entirely in your browser: your files are never uploaded anywhere.
Formats: EPUB, FB2, FB2.ZIP, PDF, TXT, HTML, MD. Footnotes open in a popup; Back returns after a link jump.
Notes: select text (optional), press Notes, write and add. Export and import notes as a JSON file. Notes, reading position and settings are kept in this browser.
Keys: ← → previous / next section or page, Esc closes panels.
Main site: dontaz.com
Uses pdf.js (Apache-2.0) and JSZip (MIT). See THIRD-PARTY-LICENSES.txt.