Get Scripture to every community.
Codex helps you work faster, without cutting corners.
AI-guided drafting, consistent terminology, and in-flow quality checking — built specifically for the constraints of Bible translation. Free to download. And if your project is creating openly licensed Scripture, premium features may be available at no cost through our partners.
Free for translators · No credit card required · Open source
Creating openly licensed Scripture? Premium features at no cost.
Codex began as a grant-funded project for Bible translation. Ministries, churches, and non-profits creating Scripture under open licenses—including Creative Commons—may qualify for premium cloud features at no cost, supported through our partner network.
- Cloud sync and team collaboration
- Additional AI usage
- Support tickets and onboarding
- Multi-project management for your organization
What qualifies: Non-profit and ministry-led translation projects producing Scripture under an open license (e.g., CC0, CC BY, CC BY-SA). ETEN Projects are automatically qualified.
You don't need to wait on us to start translating—but you can contact us about activating premium features when you need them.
What makes it different
Designed for the constraints of Bible translation—not adapted from them.
Project memory that compounds
Every key term choice, correction, and style decision gets remembered. The AI guidance gets better the more you work—and stays consistent from Genesis to Revelation.
Back-translation built in
Verify meaning with automated reverse translation at any point. Catch drift early—without waiting for a consultant visit.
Audio recording alongside text
Record oral renderings verse-by-verse. Designed for oral-primary communities where listening is the first mode of engagement with Scripture.
Also see LangQuest for oral Bible translation!In the field
Already deployed in Bible translation work.
Partner
ETEN Innovation Lab
ETEN Innovation Lab—working to eradicate Bible poverty by 2033—partners with Codex, where the lab is already working on new Bible translations inside Codex and seeing (so far) 4–16× speed increases compared to typical translation project timelines.
Case study
Codex Works with Low-Resource Languages
Even in extremely low-resource languages, Codex accelerated subtitle work by leveraging partial or legacy Bible materials wherever available. For many of the final 39 languages, just a single subject-matter expert could use Codex to build on previous translation efforts—ensuring consistency and meaningful quality checks, even without a large review team.
Read the full storyGetting started
Up and running in no time.
Open your translation project
Import your source text. Codex supports standard Bible text formats. No need to set key terms — the AI does that automatically and learns as you work.
Translate, check, and build
Draft verse by verse with AI suggestions. Back-translate on demand. Record audio. Every correction updates the project memory for the next chapter.
See how it worksStart translating today.
Start translating today.
Download and use Codex for free. Open your project, set your source text, and start working. The AI guidance is available from your first session (up to a monthly cap).
Your project may qualify for free premium access.
If your organization is creating openly licensed Scripture — or is a non-profit in the
Bible translation space — reach out. Many projects are supported through partner funding.
We'll respond within a few days.
ETEN projects are automatically qualified.
No need to wait on us to start translating. Contact us about activating premium features when you need them.