For current CLDR release information, see cldr.unicode.org.

Update: 2025-03-11

Note: CLDR 48 is in development and not recommended for use at this stage.

The Unicode Common Locale Data Repository (CLDR) provides key building blocks for software to support the world's languages, with the largest and most extensive standard repository of locale data available. This data is used by a wide spectrum of companies for their software internationalization and localization, adapting software to the conventions of different languages for such common software tasks.

See for further information:

• CLDR releases and downloads, including the data files and LDML specification associated with each release

• Repository organization, describing the organization of files within this repository

• Building and running CLDR Tools

Most data submissions are done via the CLDR Survey Tool, which is open and available on predetermined cycles. Click HERE for information on how to obtain a survey tool account.

For details about code and other contributions, see CONTRIBUTING.md

A source formatter is now used, please see spotless for details.

Copyright © 2004-2025 Unicode, Inc. Unicode and the Unicode Logo are registered trademarks of Unicode, Inc. in the United States and other countries.

A CLA is required to contribute to this project - please refer to the CONTRIBUTING.md file (or start a Pull Request) for more information.

The contents of this repository are governed by the Unicode Terms of Use and are released under LICENSE.

Note that some CLDR tools depend on libraries managed via Maven; use of these libraries is governed by separate license agreements.