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This is a collection of tools by and for Unicode Character Database (UCD)maintainers for the production and vetting of data files for the UCD andother Unicode specs such as UCA, emoji, idna, and security.

Do not use the Unicode data files in this repo for production.Do use the data filesposted publicly on unicode.org

There is some documentation for these tools in this repo, in thedocs folder.

Some of the documentation still refers to the previous Subversion repository.This GitHub repo reflects the svn repo up to r1566,plus a few snapshots up to r1830. (Don’t ask.)

This repository includes the source for the tooling athttps://util.unicode.org - see/UnicodeJsps

For feedback on the Unicode Standard and bug reports against the Unicode Character Database,use the Unicode Contact Form:https://www.unicode.org/reporting.html

Do not use the GitHub Issues feature in this repo for those.The tools maintainers use GH issues for issues with the code in this repo.

Copyright © 2001-2025 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 theCONTRIBUTING.md file (or start a Pull Request) for more information.

The contents of this repository are governed by the UnicodeTerms of Use and are released underLICENSE.