Open Source Christian Projects | Collaborate & Innovate

Tov: a Bible without noise

A beautifully minimal, open-source, distraction-free Bible app for iOS featuring the Berean Standard Bible, 30,000+ cross-references, reading history, and offline access — completely free with no ads or paywalls. Built by Trent Cowden.

Bible Brain API

Bible Brain is the free developer API from Faith Comes By Hearing, offering REST endpoints for Bible text, audio, and video in 2,633 languages. Actively maintained with 21 GitHub repos and comprehensive developer documentation. Free for non-commercial use. Ideal for building multilingual Scripture apps and websites.

Rock RMS

Rock RMS is a free, open-source church management platform by Spark Development Network that handles people management, check-in, giving, communications, digital publishing, engagement tracking, and more — trusted by 10 of the 12 largest US churches, managing 31.5M+ people records, with an active 5,000+ member community and product roadmap through v21.

Hai-End-Streaming

Open source Raspberry Pi-based livestreaming solution built by volunteers for church congregations, with 790+ active locations across Europe, a simple web interface anyone can operate, and active development through 2026 (v2.0.3).

Ezra Bible App

A free, open-source Bible study app focused on topical study through keyword tagging, verse-based notes, Strong's Dictionary with morphological analysis, and Vine's Expository Dictionary — now available on Windows, macOS, Linux, Android, iOS, and Chromebooks with hundreds of translations via SWORD modules.

The Bible Plugin

A free, open-source WordPress plugin that embeds a Bible reader into any site, supporting 2,000+ translations via the Bible Brain API with Paratext file support coming in v2.0. Built by missionaries for missions — localized, strategic, and designed to keep seekers on your site.

Xiphos

Xiphos is a free, open-source Bible study application for Linux and Windows built on The SWORD Project, offering tabbed reading, fast indexed search, Strong's numbers, pseudo-interlinear display, commentaries, dictionaries, and access to 400+ Bible modules in 150+ languages. Actively developed since 2000 with 49 contributors and recent releases as of 2025.

Scribe Scripture

A free, open-source web app that helps you engage with Scripture by typing one chapter of Proverbs each day, cycling through all 31 chapters monthly — turning reading into active, tactile meditation on God's Word.

Stello

Stello is a free, open-source desktop app for sending secure and interactive newsletters. Built by a Christian non-profit for missionaries and ministry workers, it encrypts messages on your device and lets recipients view rich, interactive updates in their browser — no accounts or apps needed.

Paper Bible

A free, open-source web tool for printing customized Scripture booklets in 800+ languages — perfect for small groups, missions, personal study, or church handouts. Made by Gracious Tech, a Christian non-profit.

Obsidian Bible Reference Plugin

A free, open-source Obsidian plugin (MIT license) that lets you instantly look up and insert Bible verses into your notes — supporting multiple translations (WEB, KJV, NVI, CUV, DRB, Korean) across every platform Obsidian runs on. 52k+ downloads, 58 contributors, actively maintained through 2026.

FreeShow

Free, open-source church presentation software for lyrics, scripture, and media — built by a nonprofit serving 14,764+ churches in 130+ countries. v1.6.0 adds Blackmagic integration, slide timeline, and scrolling text across Windows, macOS, and Linux.

Codex Translation Editor

Free, open-source AI-powered Bible translation editor for desktop. Translators steer while AI learns their style in real-time — supporting any language pair, including ultra-low-resource languages. Built by Frontier R&D in partnership with Biblica and the ETEN Innovation Lab.

The Odin Project

A free, open-source full-stack web development curriculum with nearly 1.8 million learners. Covers HTML, CSS, JavaScript, React, Node.js, and Ruby on Rails through project-based learning and a supportive Discord community. Self-funded by donations since 2023.

Bible Vector Search

A free, open-source semantic Bible search tool that uses AI embeddings and vector database technology to find Scripture passages by meaning — not just keywords. Built on the BBE translation, with a public REST API for developers. Part of the Antioch Tech project family by the creator of Obsidian Bible Reference.

Free Use Bible API

A free, open-source JSON API by AO Lab serving 1,000+ Bible translations with no API keys, no usage limits, and no copyright restrictions — now including commentary datasets, audio links, and the Tyndale Open Study Notes. 426 commits, 138 stars on GitHub, with active development as of May 2026.

AndBible

A free, open-source Android Bible study app with 1,500+ documents in 700+ languages, Strong's concordance, split-screen commentary, AI-powered study tools (coming in v5.1), reading progress tracking, and community-driven development — no ads, no cost, no compromise. An iOS version is in development.

Scripture App Builder

Scripture App Builder is a free desktop tool from SIL Global that lets Bible translators create customized Android and iOS Scripture apps with synchronized text and audio — no programming required. Over 2,500 apps in 1,960 languages with 65 million installs worldwide. Recent versions add an optional AI Assistant with guided prompts, enhanced contents menus, and onboarding screens.

Type the Word

Type the Word is a free, open-source web app that lets you type through the Bible verse by verse — tracking accuracy, progress, and consistency while meditating on Scripture across nine translations. New in 2026: memorization modes with word masking, a Goals system for long-term plans, and a Google Classroom integration being piloted in Christian schools.

Bible Bot

A free, open-source AI Christian companion on ChatGPT that helps you explore 100+ biblical topics, find verses, and dig deeper into Scripture — built with grace, truth, and an open-handed spirit. Featured in AP News (2026) for its creator's pioneering standards for faith-based AI.

B1 Church

Free, open-source church management platform with mobile app, website builder, digital giving, check-in, attendance tracking, groups, worship planning, and multi-campus support — built by a nonprofit serving 14,700+ churches worldwide.

fetch(bible)

A free, open-source Bible translations platform by Gracious Tech providing unrestricted access to 1,197+ translations across 962 languages via CDN, client library (v2.0.0), embeddable app, and web enhancer — no API keys, no limits, no registration. Translation count nearly tripled in the past year.

Navigate The Way ✝️

Navigate The Way ✝️ is a free AI assistant for Scripture and theology, built on a conservative reformed evangelical foundation with an open-source AGPL-3.0 system prompt. Created by Ted Hallum of Ligonier Ministries, it uses AO Lab's Bible API for direct Scripture access and is available on ChatGPT and Apologist Agent.

Here's My Church

A free, interactive map of Christian churches across all 50 U.S. states with attendance estimates, denomination filters, and community-driven corrections.

Keep in Touch (kit)

An open-source platform for Christian creators to share project updates, capture email leads, and build in public — with shared faith.tools authentication, built-in blogging, RSS feeds, and AI content moderation.

LangQuest

An offline-first mobile app that enables native speakers to capture oral Bible translations and linguistic data by voice or text, collaborate with their community to validate translations, and contribute to a global open-access dataset — designed for the realities of remote field work where internet is unreliable.

BibleLink

BibleLink is a free, multilingual website plugin by GlobalRize that converts Bible references into hoverable links showing the verse text. Now supports 50+ languages and 80+ Bible translations, available as a WordPress plugin or lightweight JavaScript snippet.

Bolls Bible

A free, open-source, cross-platform Bible reading app offering 100+ translations in 29 languages with bookmarks, parallel reading, cross-device sync, and customizable themes — built by a Ukrainian developer with a Sola Scriptura conviction, actively maintained with 587 commits and 122 GitHub stars.

Gamaliel

Gamaliel is a free, open-source AI Bible reader that answers your Scripture questions with biblically grounded responses. No login needed, funded by ministry, with theological guardrails rooted in the Nicene Creed. Now includes a curated sermon video library.

Armorer

A free, open-source minimalist KJV Bible web reader with infinite scroll, instant client-side keyword search, and verse-level deep links — built by a software architect and church deacon who wanted a clean, distraction-free reading experience with no ads, accounts, or overhead.

OpenTheo

A free, searchable archive of AI-transcribed Christian audio and video featuring 10,000+ hours from teachers like Steve Gregg, NT Wright, Mike Licona, and Stand to Reason. Interactive transcripts let you click any word to jump to that moment in the audio with real-time highlighting.

Prayse

Prayse is a free, open-source prayer journal app that helps you organize prayers into folders, set reminders, journal your thoughts, add voice prayers, and connect with other believers through prayer groups — available on iOS and Android.

Seed Bible by AO Lab

A free, open-source web platform by AO Lab (501c3) that transforms Bible reading into a shared, real-time experience inside group chats and messaging apps. Features immersive 3D reading, interactive games, Scripture playlists, multilingual collaboration, Codex-powered Bible translation tools, Twitch streaming, and a free Bible API with 1,000+ translations. No downloads, no paywalls, no ads.

Christicons

Free, open-source library of 56 hand-crafted Christian SVG icons (MIT-0 license) for websites, apps, and ministry projects — created by Dimitri Conejo Sanz, the Catholic developer behind Cathopic and EWTN's frontend team. Accepts community icon submissions.

Bolls Bible API

A free, open-source Bible API and reading platform offering 100+ translations in 29 languages with endpoints for chapters, verses, search, version comparison, Hebrew/Greek dictionary definitions, and a Reference Tagging Tool — built by a Ukrainian developer with a Sola Scriptura conviction, actively maintained with 587+ commits and 122 GitHub stars.

Scripture Forge

A free, open-source web app by SIL International for collaborative Bible translation — featuring AI-powered draft generation now used in nearly 500 projects worldwide, Paratext integration, and community checking tools that connect translation teams with language speakers across the globe.

Bible MCP

An open-source MCP server that gives AI chatbots direct access to accurate, freely licensed Bible text — so Scripture is quoted, not hallucinated. Now with nearly 1,900 Smithery tool calls across Claude.ai, Claude Code, and Cursor.

Lumen

An open-source, AI-powered Bible study companion with an ESV reader, contextual AI copilot, personalized passage recommendations, reading progress tracking, testimony editor, and activity calendar — all in your browser. Built by an xAI engineer.

Remember Me

Free, open-source Bible memory app by Swiss nonprofit Poimena — uses spaced repetition, interactive games, and group campaigns to help 2.2M+ believers memorize Scripture across 320+ translations in 48 languages. No ads, no cost, no limits. Now at v6.8.7.

Gertrude

Gertrude is an open-source parental control suite for Mac, iPhone, and iPad that takes a default-deny approach to internet filtering, blocking everything except parent-approved sites and apps, with additional tools for screenshot monitoring, keystroke logging, and a safe podcast app for kids.

GitHaven

Free, open-source Git hosting for Christian developers, built on Gitea and actively maintained by Shiloh — a growing Christian tech company also behind Last Hour Hosting, Remnant Chat, the Touch Grass Show, and the annual Shiloh Echo retreat in North Idaho.

Lessons.Church

Free, open-source church curriculum platform offering 526+ video-based Bible lessons for all ages — preschool through adult — with automatic scheduling, companion TV apps (Android TV, Fire TV, Apple TV), and downloadable leader guides, all at zero cost. Part of ChurchApps, serving 14,764+ churches in 130+ countries.

Gospel Onchain

An open-source project that stored the entire KJV Bible directly on the Optimism blockchain — censorship-proof, immutable, and free to read. Built by a BuidlGuidl Ethereum developer, with a council voting system in development for community-verified Scripture preservation.

Parabible

A free, open-source, browser-based Bible study tool that lets you read and search the original Hebrew, Greek, and Aramaic texts with morphological parsing — built by a PhD biblical scholar who now works as Senior AI Translation Technologist at Seed Company.

Harvous

A beautifully designed, open-source Bible notes app that puts your study notes first — organize thoughts in threads, auto-link scripture references across 7 translations, cross-reference passages, and share spaces with your small group. Built by a design engineer whose 10-year faith journey inspired Proverbs 25:2-driven toolmaking. Free to start, web-based with native apps in active development.

Freedom Stack - Full-stack Web App Starter Kit

A free, open-source full-stack web app starter kit that takes a no-build, Web Standards approach — pairing Hono, Datastar, Bknd, Semantics UI, and UnoCSS on Bun for approachable, deployable-anywhere development.

Soul Rest

A free, open-source web platform gathering Christian meditations and meditative prayers from creators like Christ Centered Tribe, Encountering Peace, Alabaster Co, Rush Podcast, VOUS Church, Abide Christian Meditation, Sr. Faustina Maria Pia SV, and Soulspace — with a Panic Button for immediate calm, random meditation discovery, and content spanning anxiety, sleep, healing, and worship.

Track Bible

A free, privacy-focused Bible reading tracker that lets you tick off chapters at your own pace — no accounts, no ads, no data collection. Open-source progressive web app from Gracious Tech.

Last Hour Hosting

Christian-owned managed hosting, VPS, email, and cloud services by Shiloh LLC — open-source, privacy-focused, with crypto and barter payment options, data centers in Iceland and Netherlands, ADF partnership, and real human support rooted in faith.

Bible Strong

All-in-one Bible study app with Hebrew and Greek lexicons, chronological timeline, Nave's Topical Bible, audio Bibles, auto-backup, and full offline access with multilingual resources. Open source, built by a solo French developer with 10,000+ daily users worldwide. Actively maintained with frequent updates.

Bible Reader

A free, open-source Bible reading plan tracker and PWA by Ethiopian developer Gadisa Teklu. Choose popular plans or create your own, track progress across all 66 books, and access from any device. Built with Next.js and Supabase.

Biblos

Biblos is a free, open-source semantic Bible search tool that runs entirely in your browser. It uses BGE-large-en-v1.5 embeddings to find passages by meaning, with Greek text analysis, Church Fathers' commentaries, and a companion daily reading plan at bibleread.app.

Disciple.Tools

A free, open-source WordPress CRM designed for disciple-making movements — track contacts, groups, baptisms, and church health with generational mapping, saturation heat maps, file uploads, and unlimited users. Built by Gospel Ambition and deployed by IMB, 24:14, and missions teams worldwide.

OpenFaith

Open-source, discipleship-first church management software with a universal sync engine for Planning Center and other ChMS platforms. Features a fast table-based interface, sacrament tracking, custom fields for all data types, and an AI-native architecture for natural language interaction with church data.