Zekr (Persian:ذکر) is an open source Quranic desktop application. It is an open platform Quran study tool for browsing and researching on the Quran. Zekr is a Quran-based project, planned to be a universal, open source, and cross-platform application to perform most of the usual refers to the Quran, according to the project website. Zekr is included in the default installation of Sabily Linux distribution.