King James Bible Online, BibleGateway, BibleStudyTools.com, YouVersion, and the site for United States Conference of Catholic Bishops are popular websites for looking up Bible verses. These websites provide categorized books of the Bible, but also include search tools to help users find verses using keywords or phrases.
Many online Bibles enable filtering by individual books, such as Genesis or Revelation, to reduce the number of search results. BibleGateway, YouVersion and BibleStudyTools.com also allow users to select the specific Bible edition they want to search, making these websites most versatile for people of different religious denominations. This feature is also beneficial for quickly comparing multiple translations of the same verse. Some sites such as YouVersion also offer apps that can be used on mobile devices.