Government · head to head
CKAN vs iDempiere

iDempiere
ERP
Community-governed open source ERP, CRM and supply chain built on Java, OSGi and PostgreSQL
- From
- Free
- Rated
- -
The short version
- Each has a real cost: CKAN the package install path requires Ubuntu 20.04 or 22.04 64-bit specifically; other operating systems must use the source install; iDempiere there is no vendor, so there is no support contract, no service level agreement and nobody to escalate to; you either build the skills internally or you depend entirely on a local partner whose quality you must judge yourself.
- They diverge on capability: CKAN covers Dataset Management, iDempiere covers Application dictionary.
- Prices and features above were last checked on 31 August 2026.
Where they differ
Only the attributes on which CKAN and iDempiere actually diverge.
Identical on both: starting price (Free), free tier (Yes), user rating (Not yet rated).
What each one covers
Drawn from each product's published feature list. An absence here means we hold no record of it - not that the product lacks it.
Only in CKAN
- Dataset Management
- Data Harvesting
- API Access
- Visualization
- Extensions
- DataPusher
- Harvester
- Third-party Tools
Only in iDempiere
- Application dictionary
- OSGi plug-in architecture
- Multi-organisation accounting
- Materials management
- Manufacturing
- Workflow engine
- Report and print engine
- No paid edition
What people use each for
The jobs each tool is most often brought in to do.
CKAN
- Publishing open government datasets in a searchable public data portalnot iDempiere
- Self-hosting a data catalogue with harvesting and an APInot iDempiere
iDempiere
- A distributor wants multi-organisation, multi-currency accounting and warehouse costing without a per-user ERP licence that scales with headcount.not CKAN
- An organisation that has been caught by an open core vendor moving features into a paid tier wants an ERP with no company that can make that decision.not CKAN
- A team needs heavy customisation of screens, fields and approval workflows that must survive version upgrades, which the application dictionary makes possible without forking.not CKAN
- A public sector or university body in Latin America or Indonesia needs a locally supportable ERP where the source and the implementation skills are both available in-country.not CKAN
Where each one falls short
Documented limitations, not opinions. Every one is a constraint you would hit in normal use.
CKAN
- The package install path requires Ubuntu 20.04 or 22.04 64-bit specifically; other operating systems must use the source install
- Only Solr 9 and Solr 8 are supported, and from CKAN 2.10 they are the only Solr versions supported at all
- A working deployment requires PostgreSQL, Solr, Redis, nginx, supervisor and uWSGI to be installed and maintained separately
- Python 3.10 or later is required
iDempiere
- There is no vendor, so there is no support contract, no service level agreement and nobody to escalate to; you either build the skills internally or you depend entirely on a local partner whose quality you must judge yourself.
- It demands real Java, OSGi and PostgreSQL administration, so the running cost is a systems engineer rather than a subscription, and that engineer is harder to hire than a PHP developer.
- The ZK-based interface is dense and dated, with a data-entry feel inherited from Compiere that staff used to modern software find hostile, which drives up training cost.
- Localisation depends on community contribution, so tax, payroll and statutory reporting for your country may be absent, out of date or maintained by one person, and you may end up funding it yourself.
- The documentation is a community wiki with gaps and stale pages, and much of the practical knowledge sits in forum threads and partner heads rather than in anything you can hand to a new administrator.
Pricing, plan by plan
CKAN
Free- Open SourceFree
- Data Management
- API Access
- Visualization
iDempiere
Free- iDempiereFree
- Full ERP, CRM and supply chain source
- Unlimited users and organisations
- No enterprise edition and no feature gating
- Implementation partner$undefined/year
- Local partners provide installation, configuration, training and support
- Priced per engagement, not published
- Realistically the only viable route for a production deployment
Which should you pick?
Choose CKAN if
- You need dataset management.
- You want to start without paying.
- You also want data harvesting.
Choose iDempiere if
- You need application dictionary.
- You want to start without paying.
- You work on Web, Self-hosted, Docker, Linux, Windows.
- You also want osgi plug-in architecture.
Questions people ask
- Is CKAN or iDempiere better?
- Neither clearly leads. CKAN starts at Free and iDempiere at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
- Which is cheaper, CKAN or iDempiere?
- CKAN starts at Free and iDempiere at Free.
- Does CKAN or iDempiere run on more platforms?
- CKAN runs on Web. iDempiere runs on Web, Self-hosted, Docker, Linux, Windows.
- Can I use CKAN for free?
- Both have a free tier, so you can try either at no cost before committing.
- What is CKAN best used for?
- CKAN is most often used for publishing open government datasets in a searchable public data portal, self-hosting a data catalogue with harvesting and an api. Of those, publishing open government datasets in a searchable public data portal and self-hosting a data catalogue with harvesting and an api are not what iDempiere is typically brought in for.
- What can CKAN do that iDempiere cannot?
- CKAN covers Dataset Management, Data Harvesting, API Access, Visualization. iDempiere covers Application dictionary, OSGi plug-in architecture, Multi-organisation accounting, Materials management.
Answered from the vendors’ own pages
CKAN: Is CKAN open-source and what license is it available under?
Yes, CKAN is an open-source data management system built on Python and available on GitHub. The license terms are available on their GitHub repository.
SourceiDempiere: Is iDempiere the same as ADempiere or Compiere?
It shares the lineage. iDempiere forked from ADempiere in 2011 to rebuild the platform on OSGi, and it is the branch that remains actively developed.
CKAN: Does CKAN offer commercial support for organizations?
Yes, CKAN offers commercial support through certified providers including Link Digital and Datopian. Support includes advisory services, application development, integration, managed hosting, and web development.
SourceiDempiere: Is there a paid or enterprise edition?
No. There is no commercial owner and no feature gating. Money is spent on implementation partners and hosting, not on licences.
CKAN: Who is responsible for hosting costs when running CKAN?
Organizations deploying CKAN are responsible for their own hosting infrastructure. Commercial providers like Datopian and Link Digital offer managed hosting services if organizations prefer not to self-host.
SourceiDempiere: What does it actually cost to run?
Nothing in licence fees, and a great deal in skills: expect a partner implementation and ongoing Java and PostgreSQL administration, which for a mid-sized company is comparable to a commercial subscription.
iDempiere: Which database does it need?
PostgreSQL or Oracle. PostgreSQL is the mainstream community choice and the one most partners deploy.
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