CoolReader is fast and small and lightweight cross-platform XML/CSS based eBook reader for desktops and portable devices.
Supported formats include:
- FB2.
- TXT.
- RTF.
- DOC.
- TCR.
- HTML.
- EPUB.
- CHM.
- PDB.
- MOBI
CoolReader for Mac allows you to read electronic books in numerous different formats. It has a few neat features such as style sheet support, and a lot of customizations for better reading performance.