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ERP · head to head

ADempiere vs CKAN

ADempiere logo

ADempiere

ERP

Community-run open source ERP forked from Compiere, with no vendor behind it

From
Free
Rated
-
Full reviewWebsite
CKAN logo

CKAN

Government

Open Source Data Portal Platform

From
Free
Rated
-
Full reviewWebsite

The short version

  • Each has a real cost: ADempiere there is no company behind it, so there is no support contract to buy, no SLA, no escalation path and no roadmap commitment; if your implementation partner leaves the market you own the problem entirely.; CKAN the package install path requires Ubuntu 20.04 or 22.04 64-bit specifically; other operating systems must use the source install
  • They diverge on capability: ADempiere covers Application dictionary, CKAN covers Dataset Management.
  • Prices and features above were last checked on 31 August 2026.

Where they differ

Only the attributes on which ADempiere and CKAN actually diverge.

Attributes where ADempiere and CKAN differ
AttributeADempiereCKAN
Pricing modelOpen source, no licence feefree
PlatformsWeb, Windows, macOS, Linux, Self-hostedWeb
CategoryERPGovernment
FoundedUnknown2006

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 ADempiere

  • Application dictionary
  • Financial accounting
  • Order to cash and procure to pay
  • Inventory and warehouse
  • Manufacturing
  • Point of sale
  • Workflow engine
  • Java and PostgreSQL stack

Only in CKAN

  • Dataset Management
  • Data Harvesting
  • API Access
  • Visualization
  • Extensions
  • DataPusher
  • Harvester
  • Third-party Tools

What people use each for

The jobs each tool is most often brought in to do.

ADempiere

  • A manufacturer in Latin America with an existing ADempiere consulting partner that needs localised tax and accounting behaviour a global vendor will not buildnot CKAN
  • A company that wants to modify ERP screens and document workflows without a vendor change request, using the application dictionary rather than codenot CKAN
  • An organisation with a hard requirement to keep financial data on its own servers under its own control with no cloud dependencynot CKAN
  • A systems integrator building a vertical ERP product on a permissive base it can fork and ship without paying a licence feenot CKAN

CKAN

  • Publishing open government datasets in a searchable public data portalnot ADempiere
  • Self-hosting a data catalogue with harvesting and an APInot ADempiere

Where each one falls short

Documented limitations, not opinions. Every one is a constraint you would hit in normal use.

ADempiere

  • There is no company behind it, so there is no support contract to buy, no SLA, no escalation path and no roadmap commitment; if your implementation partner leaves the market you own the problem entirely.
  • The official website adempiere.net does not resolve, which strands most of the historic documentation and tutorials that search engines still point at and makes onboarding a new developer considerably harder.
  • The last conventional stable release, 3.9.4, is from January 2023, so despite ongoing GitHub activity a buyer evaluating on release cadence sees a project moving slowly.
  • iDempiere, a later fork of the same codebase, absorbed much of the developer community, so ADempiere competes for contributors with its own descendant and is the smaller of the two ecosystems.
  • The interface and the Java Swing heritage feel dated, and staff coming from a modern cloud ERP will need training and will complain; expect resistance from finance and warehouse users during rollout.

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

Pricing, plan by plan

ADempiere

Free
  • Community editionFree
    • GPL v2 licensed, no licence fee
    • Full ERP, CRM, supply chain and POS modules
    • Self-hosted on your own infrastructure

CKAN

Free
  • Open SourceFree
    • Data Management
    • API Access
    • Visualization

Which should you pick?

Choose ADempiere if

  • You need application dictionary.
  • You want to start without paying.
  • You work on Web, Windows, macOS, Linux, Self-hosted.
  • You also want financial accounting.
ADempiere review

Choose CKAN if

  • You need dataset management.
  • You want to start without paying.
  • You also want data harvesting.
CKAN review

Questions people ask

Is ADempiere or CKAN better?
Neither clearly leads. ADempiere starts at Free and CKAN at Free, and user ratings are close enough to be indistinguishable. Choose on capability and platform support.
Which is cheaper, ADempiere or CKAN?
ADempiere starts at Free and CKAN at Free.
Does ADempiere or CKAN run on more platforms?
ADempiere runs on Web, Windows, macOS, Linux, Self-hosted. CKAN runs on Web.
Can I use ADempiere for free?
Both have a free tier, so you can try either at no cost before committing.
What is ADempiere best used for?
ADempiere is most often used for a manufacturer in latin america with an existing adempiere consulting partner that needs localised tax and accounting behaviour a global vendor will not build, a company that wants to modify erp screens and document workflows without a vendor change request, using the application dictionary rather than code, an organisation with a hard requirement to keep financial data on its own servers under its own control with no cloud dependency, a systems integrator building a vertical erp product on a permissive base it can fork and ship without paying a licence fee. Of those, a manufacturer in latin america with an existing adempiere consulting partner that needs localised tax and accounting behaviour a global vendor will not build and a company that wants to modify erp screens and document workflows without a vendor change request, using the application dictionary rather than code are not what CKAN is typically brought in for.
What can ADempiere do that CKAN cannot?
ADempiere covers Application dictionary, Financial accounting, Order to cash and procure to pay, Inventory and warehouse. CKAN covers Dataset Management, Data Harvesting, API Access, Visualization.

Answered from the vendors’ own pages

ADempiere: Should I choose ADempiere or iDempiere?

Look at iDempiere first. It is a later fork of the same codebase with a more active community and a modular OSGi architecture. Choose ADempiere if a specific partner or localisation you need only exists there.

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.

Source
ADempiere: Is ADempiere free?

The software is GPL licensed with no licence fee. The cost is implementation, customisation and permanent in-house maintenance, which for a real deployment is substantial.

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.

Source
ADempiere: Is the project still alive?

Development continues on GitHub with commits into 2026, but the official website is down and the last stable release is from January 2023. Treat it as maintained rather than actively advancing.

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.

Source
ADempiere: What is the application dictionary?

It is the metadata layer inherited from Compiere that stores the definition of every window, field and validation rule as data, so you can change the application without touching source code.

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