Stories From the Field
Seizing the moment in Sudan
A group of Sudanese refugees is learning the fundamentals of sound Bible translation so they can take God's Word back to mill...
Open Bible Stories open doors for Gospel in Venezuela
For Piaroa Christians like Alejandra, having unfoldingWord’s Open Bible Stories translated from Spanish into her heart langua...
Equip Churches Worldwide with Bible Translation Tools

Translation Tools

These are the open-source technology tools we are creating.




translationCore® is an open source platform for checking and managing Bible translation projects. tC provides an extensible interface that enables, among other things, systematic and comprehensive checking of Bible translations against multiple sources and the original languages with just-in-time training modules that provide guidelines and instruction for translators.

Click here to view translationCore® on the web.

The raw checklist data used in translationCore is available for download and reuse here.

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translationStudio (tS) is an open source utility for translating the Bible and biblical content into any language. The purpose of tS is to make Bible translation accessible to the global church. tS is fully functional without an internet connection and enables collaboration in the translation process. The app includes numerous just in time translation helps that explain keywords, difficult to translate phrases, and general translation concepts.

Desktop & Mobile

The desktop version of tS is available for Windows, Mac, and Linux. The mobile version supports Android devices.

Click here for release notes & downloads.


See the following links for help using translationStudio:

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Content Management



Door43® is a community of people interested in furthering unrestricted biblical content. The Door43 Content Service provides synchronization between our tools and the Door43 website provides automatic web publishing. Contributors from all over the world use the site to work together to create, translate, and distribute unrestricted discipleship resources.

Pray together for us also, that God would open a door to us for the word… Col 4:3 (ULT)

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unfoldingWord App

unfoldingWord App

A Bible and discipleship resource app. No Internet required.

unfoldingWord® App - Privacy Policy

Effective Date: May 21, 2018

This statement lays out our policies and procedures surrounding the collection and handling of any information that identifies an individual user or that could be used to contact or locate him or her. (“Personally, Identifiable Information” or PII).

This Privacy Policy applies only to the unfoldingWord® App. It does not apply to any third party site or service linked to the unfoldingWord® App or recommended or referred by the unfoldingWord® App, through the unfoldingWord® App or services, or by our staff. And it does not apply to any other application, product, or service operated by our company, or to any of our offline activities.

A. PII We Collect

Personally Identifiable Information (PII) includes the collection of information that identifies an individual user of the unfoldingWord® App in order to find, contact or locate him or her. We collect the following Personally Identifiable Information from users who download the unfoldingWord® App: NONE

B. Amendment of This Privacy Policy

We may change this Privacy Policy at any time by posting a new version of the unfoldingWord® App with updates to Privacy Policy. The new Privacy Policy will become effective on the date of the new release.

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translationDatabase (tD) provides open access to a database of all known languages and translation activity, as well as existing open-licensed biblical content in every language.

View on the web.
View source.

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Other Tools

Application Programming Interface (API)

unfoldingWord® supports several APIs to provide programmatic access to content in our ecosystem. These are all fully open and accessible for any developer to use.

See all our API documentation at uW and Door43 API Information.

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Publishing Blockchain

The Publishing Blockchain is a decentralized database of completed resources. The blockchain contains information about these resources as well as digital signatures of people and organizations that approve of them. The information in the database cannot be altered and provides a historical account of work published. The database is ideal for publishers of all sizes and developers to pull resources from to input into their publishing engines. More information.

Status: Not Started

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Stories From the Field

  • Iran: Bibles in every language

    • January 04, 2022

    222 Ministries President Lazarus Yeghnazar dreams of the day when his country, Iran, will have Bibles in every local language. Using unfoldingWord's translation tools and Biblica's newly-revised Farsi...

  • A Scrap of Paper that Changed a Life

    • December 28, 2021

    It was 2006. A young Islamic man, walking home in Khartoum, Sudan, found a scrap of paper that changed his life and began his journey to the forefront of Church-Centric Bible Translation. His name is ...

  • Zafar's Favorite Tool

    • December 28, 2021

    This year, unfoldingWord completed the initial training of the Russian Gateway Language team. All 50 Open Bible Stories and nine Scripture Book Packages are now available in Russian, serving as the Ga...

  • Seizing the moment in Sudan

    • November 01, 2021

    Circling the Kaaba with thousands of fellow Muslims during the Hajj (annual pilgrimage to Mecca), a young Sudanese man comes to a moment of crisis.  He realizes that fellow believers from all over the...

  • Open Bible Stories open doors for Gospel in Venezuela

      For Piaroa Christians like Alejandra, having unfoldingWord’s Open Bible Stories translated from Spanish into her heart language means more than nice bedtime stories for her kids. It means giving them ...

    • Bible Without a Village

      • December 27, 2021

      On December 4, our Spanish Gateway Language partners held their first translation workshop with Portuguese translators. Portuguese is the Gateway to 530 people groups representing about 50 million peo...

    • Ruska Roma celebrate first Scripture in their language

      • September 20, 2021

      EASTERN UKRAINE — To Samuel Kim, holding a Ruska Roma translation of 3 John means more than a chance to celebrate with his Roma friends. It’s the answer to 10 years of prayer.  In April, a team of fou...