https://chavrutai.com

A web application for studying classical Jewish texts, featuring bilingual Hebrew-English access to the Babylonian Talmud, Jerusalem Talmud, Mishnah, Mishneh Torah, and Tanakh, alongside integrated reference tools, dictionaries, and an AI study assistant.

ChavrutAI is a full-featured digital platform providing bilingual (Hebrew/English) access to the major corpora of classical Jewish literature. Originally launched as a Babylonian Talmud reader, the platform has grown into a multi-text library covering five primary works, with an expanding suite of study tools, reference dictionaries, and cross-text navigation features. Built with modern web technologies, it combines traditional scholarship with contemporary user experience design.

ChavrutAI is featured in the official Sefaria Powered-By directory, a curated list of projects and applications built using the Sefaria API and text data.

ChavrutAI is listed in the JewishAI Internet Index, the AI and Judaism Resource Library's curated index of tools, scholarship, and discussions at the intersection of Jewish tradition and modern artificial intelligence.

The Talmud reading page displaying Berakhot 2a — the opening folio of the entire Talmud. Hebrew and English text appear side by side, with numbered section navigation, direct links to Sefaria and Al HaTorah, and folio navigation controls.

From my Talmud & Tech blog, where I write about building and developing ChavrutAI:

• ChavrutAI Talmud Web App Launch: Review and Comparison with Similar Platforms (Aug 2025)
• ChavrutAI's New Homepage: A Fresh Entry Point for the Study of Classical Jewish Texts (Dec 2025)
• ChavrutAI's Talmud Translation Processing Approach (Dec 2025)

• All 37 tractates with over 5,400 folio pages
• Bilingual Hebrew/English display with side-by-side or stacked layout
• Traditional folio numbering (2a, 2b, 3a…)
• Section-by-section navigation with inline chapter headers
• Mishnah and Talmud markers styled as distinct section headers, with Mishnah citations linked to the Mishnah reader
• External links to Sefaria, Al HaTorah, Wikisource, and Daf Yomi at page and section level

• 39 tractates organized by Seder with bilingual text
• Per-halakhah pages (e.g. /yerushalmi/Chagigah/2.1) matching scholarly citation conventions
• Halakhah-by-halakhah navigation crossing chapter boundaries

• All 63 tractates organized by the six Sedarim
• Bilingual Hebrew/English chapter readers (50/50 columns)
• 26 standalone tractates not covered by the Talmud Bavli reader

• All 83 Books of Maimonides' code of Jewish law
• Bilingual text with Maimonides' Introduction (Hakdamah/Transmission of the Oral Law) integrated

• Torah, Prophets (Nevi'im), and Writings (Ketuvim)
• Hebrew text with Koren Jerusalem Bible English translation
• Verse-level external links to Sefaria, Al HaTorah, and Wikisource

• Jastrow Dictionary (/jastrow) — Talmudic Hebrew & Aramaic; search, browse by letter, autosuggest, internal cross-references, Mishnah and Talmud links to ChavrutAI pages
• Brown-Driver-Briggs (BDB) (/bdb) — Biblical Hebrew lexicon with verbal stem labels, numbered section labels, Bible citations linked to the ChavrutAI Bible reader, and scholar abbreviation expansion

• Biblical Index (/biblical-index) — comprehensive index of biblical citations in the Talmud, organized by book (Torah, Prophets, Writings)
• Mishnah Map (/mishnah-map) — maps every Mishnah passage to its location in the Talmud Bavli, with inline notes where chapter ordering diverges
• Talmud Term Index (/term-index) — tabbed, searchable glossary of 5,385+ personal names, place names, and key concepts from the Babylonian Talmud, with biographical data from Wikidata and links to corpus passages

• Sugya Viewer (/sugya-viewer) — fetch and study custom Talmud text ranges; accepts ChavrutAI references, Sefaria references/URLs, or blog post selection; shareable URLs
• Full-Text Search (/search) — search across Talmud and Bible texts in Hebrew and English, with section-level result links
• Suggested Pages (/suggested-pages) — curated list of 20+ famous Talmudic passages (Hillel's Golden Rule, Hannah's Prayer, "Who is wise?", etc.)
• Daf Yomi Widget — today's Talmud page with a direct study link, shown on the homepage
• AI Study Assistant — chat panel for studying any Talmud passage

• J.N. Epstein's Introductions (/scholarship) — Introductions to Tanaitic Literature and to Amoraic Literature; paginated reader with footnotes as margin notes (desktop) or collapsible panel (mobile), floating footnote popovers, and links to Sefaria
• Blog Posts (/blog-posts) — "Talmud & Tech" articles mapped to specific Talmudic locations

• Intelligent term highlighting with 5,385+ terms across multiple gazetteers: concepts, personal names, place names, biblical references, and Talmudic toponyms
• Smart paragraph splitting for improved readability across all five corpora
• Punctuation normalization per-corpus: dialogue markers, rhetorical openers, and speech introducers styled consistently in Hebrew and English
• Number and fraction conversion from written-out English forms to numerals
• RTL/LTR support for Hebrew text alongside English
• Abbreviation expansion for BDB grammatical and source-critical terms, scholar names, and Ethiopic/Greek/Arabic/Syriac transliteration annotation

• Text size — 5 levels (extra-small to extra-large)
• Hebrew font — 7 options (Calibri, Times, Frank Ruehl, Noto Sans Hebrew, Noto Serif Hebrew, Assistant, David Libre)
• English font — 4 options (Roboto, Inter, Source Sans 3, Open Sans)
• Theme — Paper (sepia/parchment), White, Dark, High Contrast
• Layout — side-by-side or stacked bilingual display
• Highlighting toggles — enable/disable by category (Concepts, Names, Places)
• Persistent settings saved to browser localStorage

• Frontend: React 18, TypeScript, Vite, Tailwind CSS + shadcn/ui, TanStack Query, Wouter
• Backend: Express.js, TypeScript, Drizzle ORM + PostgreSQL (Neon serverless)
• AI: Vercel AI SDK + Claude via OpenRouter (@openrouter/ai-sdk-provider)
• Analytics: PostHog
• External APIs: Sefaria (texts and dictionaries), talmud-nlp-indexer (term highlighting gazetteers)

client/src/
  pages/            — route pages (tractate-view, bible-chapter, mishnah-*, yerushalmi-*, rambam-*, etc.)
  components/       — UI components (text/, navigation/, bible/, outline/)
  lib/              — utilities (text-processing, gazetteer, analytics)
  hooks/            — custom hooks (use-seo, use-chat, use-mobile)
  context/          — React context providers (preferences)
client/public/
  data/chapters/    — JSON files for 37 Bavli tractates (chapter/outline data)
server/
  routes.ts         — slim orchestrator: imports and mounts all route modules
  routes/           — domain-focused route modules:
    seo.ts          — crawler detection, meta tags, structured data, crawler body injection
    talmud.ts       — Talmud text, tractates, chapters
    mishnah.ts      — Mishnah tractates, info, chapter text
    yerushalmi.ts   — Yerushalmi tractates, info, halakhah text, shapes
    rambam.ts       — Rambam info, chapter text
    bible.ts        — Bible books, chapters, text
    dictionary.ts   — Jastrow and BDB search, browse, autosuggest
    chat.ts         — AI chat streaming via OpenRouter
    search.ts       — full-text search
    feed.ts         — RSS feeds, Daf Yomi
    sitemap-*.ts    — XML sitemap generators (one per corpus)
  storage.ts        — storage interface + in-memory implementation
shared/
  schema.ts         — Drizzle DB schema + Zod insert schemas
  seo-data.ts       — single source of truth for all SEO titles, descriptions, and OG data
  text-processing.ts — shared text splitting/formatting (Hebrew + English)
  tractates.ts      — Talmud & Mishnah tractate data, URL normalization
  talmud-navigation.ts — page validation, prev/next navigation
  talmud-data.ts    — tractate metadata, folio ranges, Seder groupings
  yerushalmi-data.ts — Yerushalmi tractate/chapter/halakhah shapes and navigation
  mishnah-map.ts    — Mishnah-to-Talmud mapping data
  data/
    glossary_v4.json       — 5,385+ term glossary (names, places, concepts)
    yerushalmi-shapes.json — halakhah counts per chapter for all Yerushalmi tractates

• GET /api/text — folio text (Hebrew + English sections)
• GET /api/tractates — list all 37 tractates
• GET /api/chapters — chapter info for a tractate

• GET /api/bible/books — list all books
• GET /api/bible/chapters — chapter list for a book
• GET /api/bible/text — chapter text

• GET /api/mishnah/tractates — list all tractates
• GET /api/mishnah/info/:tractate — tractate metadata
• GET /api/mishnah/:tractate/:chapter — chapter text

• GET /api/yerushalmi/tractates — list all tractates
• GET /api/yerushalmi/info/:tractate — tractate metadata
• GET /api/yerushalmi/:tractate/:chapter/:halakhah — halakhah text

• GET /api/rambam/info/:book — book metadata
• GET /api/rambam/:book/:chapter — chapter text

• GET /api/dictionary/search — Jastrow search
• GET /api/dictionary/browse — Jastrow browse by Hebrew letter
• GET /api/dictionary/autosuggest — Jastrow autocomplete
• GET /api/bdb/search — BDB search
• GET /api/bdb/browse — BDB browse by letter

• GET /api/search/text — full-text search across all corpora
• GET /api/glossary — term index data (JSON)
• GET /api/daf-yomi — today's Daf Yomi
• GET /api/rss-feed — blog feed (titles only)
• GET /api/rss-feed-full — blog feed (full content)