Two transmitted readings
Hafs is a transmission from the reading of Asim. Warsh is a transmission from the reading of Nafi. They are not two different books: both are recognized Quran readings, with differences in recitation and, in some places, written conventions and verse numbering. The King Fahd Complex publishes a dedicated Warsh mushaf used in the Maghrib.
What changes when you switch?
In the Noor Al-Islam reader, choosing Warsh changes the Arabic text and its verse numbering to the Warsh edition. Choosing Hafs returns to the familiar Uthmani Hafs edition. Keep the selected reading in mind when citing a verse number: some verse boundaries are counted differently. Translation is an interpretation of meaning and cannot show every recitation distinction.
For audio, choose a recording identified as Warsh when reading Warsh. A Hafs recording should not be presented as though it demonstrates the Warsh reading.
Compare them yourself
Open the Warsh page for a sample from Al-Fatihah and links to every surah. Then open Al-Fatihah in the Hafs text. The reader lets you select Hafs, Warsh or Qaloon; the URL opens it in Warsh.
For listening, try Omar Al-Qazabri’s Warsh recordings or Mahmoud Khalil Al-Hussary’s available readings.
Sources and limits
Warsh mushaf information comes from the King Fahd Complex; the app’s text and audio providers are listed in Sources and methodology. This guide describes how to use the site and is not a substitute for study with a qualified teacher of qira’at.