Ontology
We gave texts, thinkers, concepts, genres, and historical strata a shared structure so learners can move through the tradition without flattening it.
Find your way in.
A living map of the Jewish canon.
Yochai brings the Jewish canon into one thoughtful place and accompanies you as you learn, as your chavruta.
Jewish texts form a layered conversation across languages, centuries, genres, and communities. For a learner without an experienced partner, even knowing where to begin can feel like a prerequisite for beginning.
We set out to build a place with the rigor of a beit midrash, the warmth of a trusted study partner, and enough structure to turn curiosity into sustained learning.
We gave texts, thinkers, concepts, genres, and historical strata a shared structure so learners can move through the tradition without flattening it.
We designed Yochai as a chavruta rather than an answer machine, preserving productive difficulty and helping learners form their own readings.
We created a quiet, luminous place drawn from parchment and deep water, where entry feels like an orientation into study rather than a login.
Defined the product vision, audience, and chavruta learning model.
Structured texts, concepts, traditions, and pathways across the canon.
Built an identity from tekhelet, sacred geometry, and the carob tree.
Made serious study feel welcoming, calm, and text-centered.
Built the reader, learning companion, memory, and connected study tools.
The design story behind Yochai's tekhelet blue and a visual language shaped by study, memory, and tradition.
Read the story →Yochai brings close reading, open questions, calendar rhythms, source sheets, and guided study into one coherent learning environment.

The learner remains the interpreter.
Yochai can help someone enter through a passage, a holiday, a difficult question, or a text they have always wanted to study. It offers context and companionship without replacing teachers, community, or judgment.
Over time, each encounter becomes part of a larger practice: one question opening into another, and one text joining a conversation that has never stopped unfolding.
Yochai began with a tradition worth entering and a question about how technology could deepen study without diminishing it. If your community should be living with a body of knowledge rather than searching through it, we should talk.
Start a conversationWe work with people and institutions whose knowledge should become educational, not merely informational.