Hebrewbooks.org was founded in order to preserve old American Hebrew books that are out of print and/or circulation.  Many American  Rabbis wrote seforim (Hebrew books) in the early part of the 20th century. They have long since passed away and in many instances so has their holy work.
Currently Hebrewbooks.org’s mission has expanded to include all [...]

Judah Hallevi’s Kitab al Khazari translated by Hartwig Hirschfeld – this work was originally written in Arabic.
(Kitab al-Ḥujjah wal-Dalil fi Nuṣr al-Din al-Dhalil, كتاب الحجة و الدليل في نصرة الدين الذليل (known in the Hebrew translation of Judah ibn Tibbon by the title Sefer ha-Kuzari)
A classic of  Medieval Jewish philosophy,  set in a legendary (but historical) central Asian kingdom.
Framed [...]

“Gimatria” is a numeric method for Hebrew words.
This method was used for centuries by the Kabala, that claims that the “underlying truth” of the universe reviles itself by numeric relations of the “gimatric” value of words.
It is also claimed that by appropriately designing/changing the name of an object, one can influence the destiny of that [...]

“Gimatria” is a numeric method for Hebrew words. This is the professional version of the Gimatric Calculator. It includes the following features:
- 5 of the most common Gimatric methods used in the Kabala
- A single digit numeric equivalent for each method (summing the digits of the result again and again until remaining with a single digit)
- [...]

“Angels & Demons, Jewish Magic Through The Ages” – new exibition in  Bible Lands Museum and… iPhone app.
Magic permeates daily Jewish lives to such a degree that life without magic is close to impossible.
An interesting fact is that most individuals are unaware that many items in their daily life and many daily actions and beliefs are [...]

Sacred Texts of Judaism is an anthology of Judaism’s most prominent religious works. This exciting collection brings together 35 texts of central importance to the Judaic religious tradition. Browse topics via the table of contents – or shake your iPhone/iPad/iPod to receive random wisdom from deep within the texts themselves.
All texts have been optimized for [...]

Have a big test you need to study for? Or, maybe you just want to learn more about Judaism. Either way, Judaism Study Guide has all the info you’ll need!
This app stores all relevant pages about Judaism from Wikipedia on your device so you can view them whenever you like with no need for Internet [...]

Tikkun Haklali, or in Hebrew תיקון הכללי is “The General Remedy”, a set of ten Psalms whose recital serves as teshuvah (repentance) for all sins. The Tikkun Haklali is a unique innovation of Rebbe Nachman of Breslov, and its recital is a regular practice of  Breslover Hasidim to this day.
App created by: Omer Winrauke, Nathan Niamehr
Compatible with [...]

Count the Omer (Sefirat HaOmer / ספירת העומר) with the aid of this iPhone app. The application will show you the correct day to say, including the brachot before and after the specific day. The counting of the Omer is conducted by Jewish people between the holidays of Pesach/Passover and Shavuot.
The prayer should be said [...]

The 49 days between Passover and Shavuot are known as the Omer. The days of the Omer are traditionally counted. This app is a tool to help count the Omer by keeping track of the count. Instructions for counting the omer are at NeoHasid.org.
This app is a collaborative work between David Cooper and Rabbi David [...]

The Tikkun HaKlali for iPhone – (Hebrew: תיקון הכללי ‎, lit., “The General [or Comprehensive] Rectification”)
Rabbi Nachman gave the name “General Remedy” – in Hebrew, Tikkun HaKlali – to a selection of Ten Psalms that he recommended for recital as a general spiritual remedy bringing inner purity and joy as well as many other benefits, [...]

The Tikkun HaKlali for iPhone – (Hebrew: תיקון הכללי ‎, lit., “The General [or Comprehensive] Rectification”)
Rabbi Nachman gave the name “General Remedy” – in Hebrew, Tikkun HaKlali – to a selection of Ten Psalms that he recommended for recital as a general spiritual remedy bringing inner purity and joy as well as many other benefits, [...]