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Original author(s) Si Chen
Developer(s) Open Source Strategies Inc.
Initial release April 1, 2008 (2008-04-01) (1.0.0)[1][2]

1.5.1  (November 1, 2013; 9 years ago (2013-11-01))

Preview release None [±]
Written in Java
Operating system Cross-platform
Available in Multi-lingual
Type Customer relationship management software
Enterprise management software
License(s) GNU General Public License v2.0

opentaps was a web-based open-source enterprise and customer relationship management software. It was available in a free Community Edition and a fee-based commercial Professional edition.

Product history

The opentaps project was based on two previous software projects: Open For Business (OFBiz) and Sequoia Open Source ERP. Needing an enterprise solution for an online retail project he helped start around 2003, developer Si Chen originally looked at an open-source project called "Open For Business," eventually going on to contribute to that project. As Chen found OFBiz more to his liking but still needing extra functionality like accounting and CRM modules.[3] Chen eventually decided to found Open Source Strategies Inc. in 2005 in an attempt to both better promote OFBiz and create a more enterprise-friendly version of the software "and make them publicly available to other users in the community, so we can all share common release points and upgrade cycles."[3][4] That customized version of OFBiz was first known as Sequoia (Open Source) ERP, with early stable releases of Sequoia arriving around October 2005.[5][3][4]

On February 7, 2006, Chen announced on SourceForge Sequoia would receive a name change to "opentaps," an acronym for "open source enterprise applications suite."[6][3][4][3] The first stable version of opentaps was version 1.0.0, released on April 1, 2008.[1][2] In December 2011, Chen announced a need for a new architecture for opentaps, stating "we will need to do much more in a mobile and API-driven world."[7]

The last major update arrived in 2011, and it's not clear if development still continues on the software. However, a patch to version 1.5 did appear on November 01, 2013.[1]

In August 2019, the developers released a statement indicating that the opentaps ERP and CRM application would be discontinued, in favor of a new smart energy project called opentaps SEAS.[8]


The main features of opentaps included[9]:

  • eCommerce functionality
  • CRM functionality
  • inventory tracking
  • shipping service integration
  • pick lists and bill of materials
  • financial and account management
  • purchasing and supply chain management
  • reporting
  • analytics tools
  • extensibility

Hardware/software requirements

Installation requirements for opentaps included:

  • Java 5.x or greater (Sun Java SDK required)

Consult the documentation for more information.

Videos, screenshots, and other media

  • Videos of opentaps could be found on YouTube.
  • Screenshots of opentaps could be found on the site.
  • A demo of opentaps was available on the opentaps site.
  • Documentation for opentaps was found here.

Entities using opentaps

Further reading

External links


  1. 1.0 1.1 1.2 "Project News for opentaps open source ERP+CRM - Page 2". SourceForge. Retrieved 13 January 2013. 
  2. 2.0 2.1 Chen, Si (8 April 2008). "opentaps Quarterly Update - opentaps 1.0.0 Released". Open Source Strategies Inc. Retrieved 13 January 2012. 
  3. 3.0 3.1 3.2 3.3 3.4 Charles, Colin (September 2006). "Interview with Si Chen from opentaps". Oracle Corporation. Retrieved 29 January 2013. 
  4. 4.0 4.1 4.2 "Sequoia ERP". Pomegranate Software. Retrieved 29 January 2013. 
  5. "Project News for opentaps open source ERP+CRM - Page 8". SourceForge. Retrieved 29 January 2013. 
  6. "Project News for opentaps open source ERP+CRM - Page 7". SourceForge. Retrieved 29 January 2013. "Sequoia ERP renamed opentaps" 
  7. Chen, Si (20 December 2011). "A New Architecture for opentaps". Sys-Con Media. Retrieved 29 January 2013. 
  8. Admin (13 August 2019). "From ERP to Smart Energy". Open Source Strategies Inc. Retrieved 04 May 2021. 
  9. "opentaps Features List". Open Source Strategies Inc. Retrieved 13 January 2013.