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About Otzar HaHochma

Otzar HaHochma is the world's largest digital library, containing more than 138,000 Judaic books, scanned page after page in their original format.

The compilation and scanning of the Jewish books began in Jerusalem twenty years ago by Ohr HaHochma Ltd publishing house. The efforts of a first-rate team of Jewish studies scholars and premier IT-Professionals turned Otzar HaHochma into a world-renowned brand. Otzar HaHochma continuously expands its collection and G'd willing 5,000 new titles are added annually.

Otzar HaHochma is the most comprehensive computerized library of its kind encompassing all realms of Judaism from ancient times to the modern period. The highlight of Otzar HaHochma is its sophisticated search engine, based on Optical Character Recognition (OCR) with a very high precision rate, which allows maximum accessibility to the content of the books simply by typing a word or sequence of words.

Otzar HaHochma adheres to the relevant publication rights. First and rare editions were included in accordance with applicable copyright laws and new works were added with the permission of relevant authors and publishers.

Otzar HaHochma's serves a wide range of users - from individuals, talmidei chachamim and Judaic researchers to institutions, including yeshivot, Jewish seminars, kollelim, batei hora'ah, Jewish schools of all streams, libraries of theology and universities throughout the world. We are dedicated to providing outstanding service to our customers both in Israel and abroad.

Insert Otzar HaHochma is a product different from anything you have seen so far, which extends your study room with tens of thousands of Jewish books, and enables you to find the requested information in a matter of seconds, which saves you time, effort and money. There are those who have described Otzar HaHochma as the biggest revolution since the printing press.

The digital library includes scanned books in their original format. When we saw a need in the market, we also included different editions of the same book, such as multiple editions of the Talmud (Soncino, Munich, Venice, Vilna, as well as new editions such as Vagshal and Oz VeHadar), first editions and more.


The variety of topics in Otzar HaHochma embraces all Jewish fields, including:

Bible and its Commentaries.

Tannaitic literature including Mishnah, Tosefta, Midrash Halakhah and Aggadah as well as their Commentaries.

Talmudic literature from both Babylonian and Jerusalem Talmuds and their Commentaries, as well as Geonic works.

Halakhah and Customs from the Rishonim and Acharonim, as well as Responsa Literature.

Jewish Philosophy from medieval times to the modern period.

Kabbalah and Hasidism including liturgical writings, sermons.

Modern scholarship in Jewish history, Hebrew linguistics, Jewish psychology, family studies, information science, etc.

Torah compilations, memorial volumes, prayer books, and much more.

You can purchase the entire collection of 138,000 Jewish books or smaller editions.  

Search options:

Otzar HaHochma’s extraordinary collection could have become it’s worst deficiency. How do you access the books you need? How do you find the desired book, topic, or even word in a veritable ocean of information?

We developed focused search options to answer this dilemma, Within less than a few seconds the user receives whatever he was looking for. The search feature can be used in a variety of contexts:


Otzar HaHochma offers many features:

*In hard ware version only.  

System requirements:

Operating system – supports Windows 8.1 and 10. Does not support Windows XP, 7 and 8.

Minimum requirements – AMD or INTEL Processor 2 GHz and higher. Processor 3 GHz and higher. INTEL AMD or We recommend


Minimum requirements – 8 GB memory.

Disk space:-

20 giga free on the computer's internal disk.


Otzar HaHochma is available in several formats:

Trial for 'Otzar Online'

The trial enables view of first 150 pages of each book.

Try 'Otzar Online' as a guest