OpenRefine is a free, open source power tool for working with messy data and improving it.
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dependabot[bot] 8b749b3c5a
Bump cypress from 12.4.0 to 12.4.1 in /main/tests/cypress (#5589)
2 days ago
.github Add explicit packaging goal in upload stage 4 days ago
IDEs/eclipse Update README.txt (#5082) 7 months ago
benchmark Set version to 3.8-SNAPSHOT 2 months ago
conf Issue 630: Change branding from Google Refine to OpenRefine 10 years ago
extensions Translated using Weblate (Persian) 1 week ago
graphics Update logo for 5 years ago
main Bump cypress from 12.4.0 to 12.4.1 in /main/tests/cypress (#5589) 2 days ago
packaging Attach artifacts on packaging maven module instead of root module, for #5585 3 days ago
server Fix CodeQL flagged vulnerability (#5447) 2 days ago
.gitattributes fix the launch4j issue 5 years ago
.gitignore Add main/webapp/modules/core/3rdparty/ to .gitignore (#4665) 10 months ago Update code of conduct committee members 3 years ago Change references to the Google Groups to point to the forum instead (#5445) 2 months ago Update changes to Advisory Committee, Project Director (#4828) 9 months ago
LICENSE.txt Update LICENSE.txt 5 years ago Fix CI badge 3 weeks ago Update 1 year ago
pom.xml Attach artifacts on packaging maven module instead of root module, for #5585 3 days ago
refine Updated dcumentation links to point to* (#5491) 2 months ago
refine.bat Update refine.bat to check the value of JAVA_HOME later (#5404) 3 months ago
refine.ini Added option to disable new version notice (#4559) 11 months ago


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OpenRefine is a Java-based power tool that allows you to load data, understand it, clean it up, reconcile it, and augment it with data coming from the web. All from a web browser and the comfort and privacy of your own computer.

Official website:

Community forum:


Snapshot releases

Latest development version, packaged for:

Run from source

If you have cloned this repository to your computer, you can run OpenRefine with:

  • ./refine on Mac OS and Linux
  • refine.bat on Windows

This requires JDK 11, Apache Maven and NPM.


Contributing to the project

Contact us

OpenRefine is open source software and is licensed under the BSD license located in the LICENSE.txt. See the folder licenses for information on open source libraries that OpenRefine depends on.


This software was created by Metaweb Technologies, Inc. and originally written and conceived by David Huynh Metaweb Technologies, Inc. was acquired by Google, Inc. in July 2010 and the product was renamed Google Refine. In October 2012, it was renamed OpenRefine as it transitioned to a community-driven project.

Since 2020, OpenRefine is fiscally sponsored by Code for Science and Society (CS&S).

See for instructions on how to contribute yourself.