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.

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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

  • Ten Times Faster

    • March 14, 2023

    Imagine you are ordering a new internet connection or cable TV or maybe something new from Amazon and you get the message saying, “Your town is too remote and we can’t serve your area at this time. We...

  • Meet Amy & Priscilla

    • March 14, 2023

    unfoldingWord operates as a catalyst for the Church-Centric Bible Translation movement. We collaborate as part of the body of Christ to develop and implement strategies and unrestricted biblical resou...

  • Jeremiah and the Occult King

    • May 04, 2023

    When Jeremiah* first heard that his Chadian church-planting network needed his help translating unfoldingWord® Open Bible Stories (OBS), he was skeptical. “I thought Bible stories were for children, l...

  • The Exponential Journey

    • April 10, 2023

    Khartoum, Sudan, April 2021. I was sitting in a small hotel conference room with the leaders of Greater Reach Alliance and half a dozen representatives of unreached Sudanese people groups. We were ta...

  • Iran: Bibles in every language


    • Escape from Kharkiv

      • June 13, 2022

      BAM! A rocket penetrates a building, shattering windows and shaking foundations. Clatter! Bomb debris splatters cars, building façades, and adjacent roofs. Bang-Bang-Bang! The jackhammer staccato of A...

    • Innovation in Bible Translation

      • March 13, 2023

      unfoldingWord catalyzes innovation in Bible translation. Your gifts and prayers are enabling remarkable new developments! One of those is happening in a state in Asia. It began with translationCore. ...

    • Breakthrough in Chad

      • July 04, 2022

      Three churches were birthed when a local chieftain, who formerly combined Islam and the occult, came to Christ. In the another community, new believers were baptized, and two new churches were planted...

    • OVERCOMING the ODDS for 300,000 PEOPLE

      • April 06, 2022

      The challenge Pastor Manish was facing seemed insurmountable. His 300,000-member South Asian mountain people group desperately needs Scripture in the language they understand best. Pastor Manish, an e...

    • Ruska Roma celebrate first Scripture in their language

      • September 20, 2021

      EASTERN UKRAINE — To Stephen K., 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...

    • Escape from Kharkiv

      • June 28, 2022

      BAM! A rocket penetrates a building, shattering windows and shaking foundations. Clatter! Bomb debris splatters cars, building façades, and adjacent roofs. Bang-Bang-Bang! The jackhammer staccato of A...

    • Oscarcito and the Yanomami

      • June 23, 2022

      Hernán walked out to board a missionary’s small plane deep in the South American rainforests. Then he paused, turned around, went back to his house, and did something unusual. “I feel like I should le...


      • April 06, 2022

      Imagine you had never heard of Noah’s Ark, Joseph’s many-colored coat, Moses and Pharaoh, or David and Goliath. You could not call on their inspiration and encouragement, because your language did not...

    • A Scrap of Paper that Changed a Life

      • March 13, 2023

      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 ...

    • 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...

    • Iran: Bibles in every language

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

      • Maryam the Librarian

        • March 08, 2023

        Maryam was a little girl living near the Iran/Iraq border when war broke out in the 1980s. When she was still very young, her family moved to Tehran to escape the fighting, but the move did not fill t...

      • Paying the Price of Persecution

        • March 13, 2023

        "We have been invited to the police station many, many times," said Pastor Vic*. "We have been harassed and so has the Bible translation team. Some of our original team members left because of the ris...

      • Zafar's Favorite Tool

        • March 13, 2023

        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...

      • Inside a Church-Centric Bible Translation Workshop

        • March 13, 2023

        A large conference room in sub-Saharan Africa is filled with 45 Sudanese men and women. Gathered around tables in groups of five or six, laptops open, with soft conversations punctuated by occasional ...