Open Database License

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Open Database License
You are free: To Share, To Create, To Adapt as long as you: Attribute, Share-Alike, Keep open[1]
You are free: To Share, To Create, To Adapt as long as you: Attribute, Share-Alike, Keep open[1]
AuthorOpen Data Commons
Latest versionv 1.0
PublisherOpen Knowledge Foundation
SPDX identifierODbL-1.0
CopyleftYes Edit this on Wikidata

The Open Database License (ODbL) is a copyleft license agreement intended to allow users to freely share, modify, and use a database while maintaining this same freedom for others.[2]

ODbL is published by Open Data Commons, which is part of Open Knowledge Foundation.[3]

The ODbL was created with the goal of allowing users to share their data freely without worrying about problems relating to copyright or ownership. It allows users to freely use the data in the database, including in other databases; edit existing data in the database; and add new data to the database. The license establishes the rights of users of the database, as well as the correct procedure for attributing credit where credit is due for the data, and how to make changes or improvements in the data, thus simplifying the sharing and comparison of data.


  • To Share: To copy, distribute and use the database.
  • To Create: To produce works from the database.
  • To Adapt: To modify, transform and build upon the database.


  • Attribute: You must attribute any public use of the database or works produced from the database in the manner specified in the ODbL. For any use or redistribution of the database or works produced from it, you must make clear to others the license of the database and keep intact any notices on the original database.
  • Share-Alike: If you publicly use any adapted version of this database or works produced from an adapted database, you must also offer that adapted database under the ODbL.
  • Keep open: If you redistribute the database, or an adapted version of it, then you may use technological measures that restrict the work (such as digital rights management) as long as you also redistribute a version without such measures.

Notable uses[edit]

The OpenStreetMap (OSM) project completed the move from a Creative Commons license to ODbL in September 2012[4] in an attempt to have more legal security[5] and a more specific license for databases rather than creative works.[6]

Other projects using ODbL include OpenCorporates,[7] Open Data Blend,[8] Open Food Facts,[9] and Paris OpenData.[10] Overtures Maps[11]

See also[edit]


  1. ^ "ODC Open Database License (ODbL) Summary". September 12, 2009.
  2. ^ "Open Database License (ODbL) v1.0". Open Data Commons. Retrieved 2 July 2011.
  3. ^ "Open Data Commons - About". Open Data Commons. Retrieved 2 July 2011.
  4. ^ "OpenStreetMap data license is ODbL". OpenStreetMap Foundation. 12 September 2012. Retrieved 17 September 2012.
  5. ^ "Legal FAQ". OpenStreetMap.
  6. ^ Mayr, Markus. "A Web-Based System for Comparative Analysis of OpenStreetMap Data by the Use of CouchDB" – via {{cite journal}}: Cite journal requires |journal= (help)
  7. ^ "Licence :: Info :: OpenCorporates".
  8. ^ "Open Database Licence (ODbL) | Open Data Blend". Retrieved 2021-07-20.
  9. ^ "Data".
  10. ^ "Open Data Paris".
  11. ^ "Download – Overture Maps Foundation". Retrieved 26 July 2023.

As of this edit, this article uses content from "ODC Open Database License (ODbL) Summary", which is licensed in a way that permits reuse under the Creative Commons Attribution-ShareAlike 3.0 Unported License, but not under the GFDL. All relevant terms must be followed.

External links[edit]