Apache Annotator provides annotation enabling code for browsers, servers, and humans.

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Apache Annotator (incubating) Build Status

Apache Annotator (incubating) provides libraries to enable annotation related software, with an initial focus on identification of textual fragments in browser environments.

Installation, usage, API documentation

See documentation on the website: https://annotator.apache.org/docs/

How to build

Building Annatator libraries requires Node.JS (>= 18). All other dependencies are automatically installed as part of the build.

  • npm run build -- builds the project
  • npm test -- runs the tests
  • npm run start -- starts the demo application

Getting Involved


This project is available as open source under the terms of the Apache 2.0 License. For accurate information, please check individual files.


Apache Annotator is currently undergoing incubation at The Apache Software Foundation.

See the accompanying DISCLAIMER file for details.