Open Source Christian Projects | Collaborate & Innovate

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 — with immersive 3D reading, interactive games, Scripture playlists, and a free Bible API with 1,000+ translations. No downloads, no paywalls, no ads.

Christicons

Discover Christicons, a free library of high-quality Christian icons for effective faith communication in digital and print projects. Fully optimized and easy to use.

Bible Strong

All-in-one Bible study app with Hebrew and Greek lexicons, chronological timeline, Nave's Topical Bible, audio Bibles, and offline access. Open source, built by a solo French developer. Free with optional premium.

Stello

Stello is secure newsletter software that helps hundreds of missionaries stay connected with supporters while ensuring their privacy.

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, and Hebrew/Greek dictionary definitions — built by a Ukrainian developer with a Sola Scriptura conviction.

Lumen

Lumen makes God’s love and Scripture accessible through innovative tech, fostering deep faith and relationships while promoting open-source collaboration.

Bible Reader

Stay on track with daily Bible reading using Bible Reader, designed to help you achieve your reading goals and deepen your faith.

Gospel Onchain

The entire KJV Bible stored directly on the Optimism blockchain — searchable, immutable, and censorship-proof. Read Scripture on-chain, confirm verses, and search by chapter or keyword.

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 — built on a conviction that Scripture should be freely given.

Disciple.Tools

Disciple.Tools is a free, WordPress-based platform for disciple-makers and churches, offering customizable tools for managing contacts, groups, and ministry activities.

Harvous

A beautifully designed, open-source Bible notes app that puts your study notes first — organize thoughts in threads, auto-link scripture references, 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.

Soul Rest

A free, open-source web platform gathering 500+ Christian meditations and meditative prayers from creators like Christ Centered Tribe, Encountering Peace, and Alabaster Co — with a Panic Button for immediate calm, random meditation discovery, and content spanning anxiety, sleep, healing, and worship.

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 and managing 30.5M+ people records.

Keep in Touch (kit)

Kit helps Christian creatives stay updated on faith & tech, sharing progress and gathering feedback while building in public.

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.

AndBible

"AndBible: Bible Study" is a free, offline Android app for in-depth personal Bible study, developed by Bible readers for Bible readers. No ads, open-source.

Paper Bible

Print Scripture in any language with customizable options, at home or professionally, using this versatile tool for all your printing needs.

Last Hour Hosting

Christian-owned web hosting, VPS, email, and cloud services by Shiloh LLC — open-source, privacy-focused, with crypto payment options and data centers in Iceland and Netherlands.

Scripture Forge

Scripture Forge offers free tools for collaborative Bible translation projects with Paratext, enabling remote teamwork, feedback, and real-time updates.

Remember Me

Free, open-source Bible memory app by Swiss nonprofit Poimena — uses spaced repetition, interactive games, and group campaigns to help 2M+ believers memorize Scripture in 48 languages. No ads, no cost, no limits.

OpenTheo

A free, searchable archive of AI-transcribed Christian audio and video content featuring thousands of hours from teachers like Steve Gregg, NT Wright, and Stand to Reason. Interactive transcripts let you click any word to jump to that moment in the audio.

Bible Vector Search

**Search Bible Verse through meaning, not just words.** This is a simple Bible verse search tool to use AI Embedding and Vector Database stacks to provide a search engine for Bible verses (BBE translation). It provides a way to search verses in its meanings not in keywords. --- We have a very simply and straightforward Bible Vector Search API. You can use it to search for Bible verses.\ See example below: ``` https://bible-search.antioch.tech/api/search?verse_query=GodIsLove ```

FreeShow

Free, open-source church presentation software for lyrics, scripture, and media — built by a nonprofit, used by thousands of churches on 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.

Obsidian Bible Reference Plugin

A free, open-source Obsidian plugin that lets you instantly look up and insert Bible verses into your notes — supporting multiple translations across every platform Obsidian runs on.

GitHaven

Free, open-source Git hosting for Christian developers, built on Gitea and hosted by Shiloh — a team reforming tech in Jesus' name.

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.

fetch(bible)

Access every free Bible translation in the world with our platform, designed for seamless integration into other applications.

Armorer

A free, open-source minimalist web reader for the King James Bible — no ads, no accounts, just clean dark-themed text with infinite scroll, instant keyword search, and verse-level deep links. Built by a software architect and church deacon who wanted a KJV reader as elegant as ESV.org.

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. Built by missionaries for missions — localized, strategic, and designed to keep seekers on your site.

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 2,500+ languages. Ideal for building multilingual Scripture apps and websites.

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 working in Bible translation technology.

The Odin Project

A free, open-source full-stack web development curriculum with 1.7M+ learners. Covers HTML, CSS, JavaScript, React, Node.js, and Ruby on Rails through hands-on projects and community support.

Type the Word

Type the Word helps you type Bible passages while meditating on scripture, tracking your accuracy and progress in typing through larger texts.