Offline readers render Web pages from stored HTML pages and saved websites. They enable users to view mirrored copies of websites without having to connect to the Internet. An offline working mode is available with many Web browsers. While in offline mode, the browser is not able to connect to URLs whose content is not stored in the local memory. Such pages cannot be displayed and an error message is generated. Offline working mode enables users to work securely with website development and other related work.

The variations of offline browsers include:

• Website mirroring software
• Offline mail readers

Some of the features of offline browsers are:

• Downloading and viewing of websites
• Saving links
• Saving images and files
• Selecting the download depth level
• Searching for keywords while working offline
• Saving Web pages as images

In addition to using an offline browser, offline viewing of websites can be done manually by saving the complete Web page and storing it on the local drive for offline viewing with any browser.