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Lutheran Lectionary — Free, Open-Source LCMS Liturgical Calendar

Lutheran Lectionary — Free, Open-Source LCMS Liturgical Calendar

Lutheran Lectionary is a free, open-source web app for LCMS Lutherans that shows you the liturgical day, appointed readings, and church calendar — for any date from 1583 to 2300.

Try It Live

You can see it running right now at lectionary.collver.biz. No account, no signup, nothing to install.

Lutheran Lectionary live site

Features

  • Two lectionary series — Three-Year (A/B/C) and One-Year Historic, sourced from the LSB Propers of the Day (CPH, 2007)
  • Full-year calendar view with liturgical color coding matching the LCMS Church Year Calendar
  • Date lookup for any date from 1583 to 2300 — weekdays show their governing Sunday with the appointed readings
  • Minor feast detection — weekday lookups surface sanctoral observances
  • Scripture popups — click any reading to see the ESV text inline
  • PDF export — landscape calendar matching LCMS Church Year Calendar format
  • Timezone-aware — Today is determined from the visitor's browser, works correctly regardless of server location
  • Native macOS app — double-click to launch, no Terminal required
  • Docker image — self-host on a home server or NAS with a single command

Docker / Home Server

The easiest way to self-host is with Docker:

docker run -d --restart unless-stopped -p 5765:5765 \
  ghcr.io/abc3-mac/lutheran-lectionary:latest

Then open http://localhost:5765 (or replace localhost with your server's IP). No timezone configuration needed — the app reads the visitor's browser date directly.

Roadmap

  • Roman Catholic — Roman Rite lectionary (Ordinary Form, 3-year cycle)
  • Anglican / Episcopal — Revised Common Lectionary
  • Eastern Orthodox — Byzantine lectionary
  • Lutheran One-Year expanded — full sanctoral calendar with collect and introit text

Get It

Albert Collver

Albert Collver