OpenRefine is a free, open source power tool for working with messy data and improving it.
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dependabot[bot] 7e9c2971a6
build(deps): bump mariadb-java-client from 2.7.5 to 3.0.5 (#4888)
3 days ago
.github build(deps): bump actions/setup-node from 3.1.1 to 3.2.0 (#4854) 2 weeks ago
IDEs/eclipse Set up linting in Maven configuration 4 months ago
benchmark build(deps): bump testng from 7.4.0 to 7.6.0 (#4866) 1 week ago
conf Issue 630: Change branding from Google Refine to OpenRefine 10 years ago
docs follow-up to #4784: add documentation for timeSinceEpochToDate GREL function 2 weeks ago
extensions build(deps): bump mariadb-java-client from 2.7.5 to 3.0.5 (#4888) 3 days ago
graphics Update logo for 4 years ago
main Fixed deprecations and a regression in imgareaselect and scatterplot facet in preparation for jQuery migration. (#4886) 4 days ago
packaging build(deps): bump maven-antrun-plugin from 3.0.0 to 3.1.0 (#4795) 1 month ago
server Improved browser launch in Linux distribution (#4706) 1 month ago
.gitattributes fix the launch4j issue 4 years ago
.gitignore Add main/webapp/modules/core/3rdparty/ to .gitignore (#4665) 2 months ago Update code of conduct committee members 2 years ago Grammatical Error (#4667) 2 months ago Update changes to Advisory Committee, Project Director (#4828) 2 weeks ago
LICENSE.txt Update LICENSE.txt 4 years ago Add embedded JRE snapshot release for Windows 3 months ago Update 4 months ago
pom.xml Revert "Add support of Mardown Exporter (#4800)" 1 week ago
refine update Maven version to 3.8.5 (#4653) 2 months ago
refine.bat Add cd %~dp0 at the start of the batch file (#4879) 6 days ago
refine.ini Added option to disable new version notice (#4559) 3 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.


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 8 and Apache Maven.

Documentation and Videos

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-supported product.

See for instructions on how to contribute yourself.