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From Thursday 13 Tishrei (28 September 2023), until Monday the second day of Rosh Chodesh Cheshvan (16 October 2023), online access to the Otzar HaChochma and Meforshei HaOtzar Website will be open to all, for FREE (not including institutional packages). ******** On Chol Hamoed Succos the Otzar HaChochma offices are closed. For urgent matters only, you can contact us by email at: [email protected], and we will do our best to help you.

Order and Payment of the Hard disk version (Version 21.0) - Credit card payment

Please note : IYH on the 28th May '23 our annual Summer Sale will start with the Otzar HaChochma on 30% discount.
The sale price is not currently available.

Now! On the occasion of Summer Sale - 30% discount on the price of the program

You can choose one of the two main versions of Otzar HaChochma and add on to them the extra packages should you so wish.

VIP Special!!!

With the purchase of a Bnei Torah/General version of Otzar HaChochma

1. Get your Vs.22.0 Update – at no extra charge.
2. Get the Chabad Seforim Bundle – at no extra charge.
3. Get an instant 45$ Discount with the purchase of one additional seforim bundle.
4. Get Priority Client Service

Now’s the best time to get your Otzar HaChochma Hard Drive!

Main Otzar HaChochma editions
General Otzar HaChochma 117,147 books $ 1,990
Bnei Torah edition 109,194 books $ 1,770
Meforshei HaOtzar available along with Otzar Hachochma purchasing only. $ 530
Additional packages: (Supplementary to main editions)
The seforim of Rav Ovadia Yosef ZT"L 74 books $ 175
Oz VeHadar 445 books $ 557
Mosad Harav Kook 1,176 books (891 in Bnei Torah Edition) $ 380
Machon Yerushalayim 521 books $ 320
Ahavat Shalom Publishers 669 books $ 230
Machon Chochmat Shlomo 139 books $ 105
Machon Ofek
About Machon Ofek
69 books $ 175
Talmudic Encyclopedia Add-on from Yad HaRav Herzog 56 books $ 110
Kehot Publication Society (Chabad library) 8,647 books $ 100
Zichron Aharon 227 books $ 165

Current chosen product:

General Otzar HaChochma
Additional packages: Chabad library (free)

Current price: $1,990

Please fill in the form in order to purchase via credit card.

Write in full postal details for delivery

For technical reasons, payment plan options when ordering online are available only for holders of Israeli credit cards. If you hold a non-Israeli credit card and would like to pay in installments, please contact Aharon Sela at 438-878-7674.

System requirements:

Operating system – supports Windows 8.1, 10 and 11. Does not support Windows XP, 7 and 8.

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


Minimum requirements – 8 GB memory.

Disk space:-

20 giga free on the computer's internal disk.

For your attention - if your computer meets the minimum requirements you should know that the Otzar HaChochma will work slowly, especially if you have other programs open at the same time.