Adopt · Editions and deployment

Choose an edition. Plan your deployment.

Compare the data foundations of OT Flash and OT Heavy, then review the product manuals and installation requirements. Verified installation packages will be linked here. No registration is needed to read the documentation.

Prefer not to install it yourself?

Contact support to discuss your deployment needs.

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Self-hosted · Release information

Installation packages and release notes.

Verified installation packages will be linked here. You can read the product manuals and deployment requirements now.

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A free self-hosted software license does not cover servers, model calls or operations. Contact support if you need deployment help. Contact support

Product manuals

Two editions, a manual for each.

OT Flash

From everyday work to agent integration.

A 15-chapter user manual organized by product menu with 141 real r57 screenshots of the English interface (also in Simplified Chinese), and a 34-chapter Agent / MCP manual in 24 language and regional editions.

Read OT Flash manuals Read the user manual

OT Heavy

From analysis to data processing.

A 15-chapter user manual organized by product menu with 140 real 8.0.9 screenshots of the English interface (also in Simplified Chinese), including a chapter on building, running and scheduling DataSpring ETL task flows.

Read OT Heavy manuals Read the user manual

Two data foundations

The same ontology management on different data foundations.

OT = OntologyOntology managementIn both editions

DataFocus OT Flash

One engine. A fast start.

Apache DorisIn-memory compute · data warehouse

Apache Doris serves as both the in-memory compute engine and the data warehouse.

Ontology management

Query and analyze Apache Doris brings analytical queries and the data warehouse into one engine.

Suited forTeams that want one business domain running quickly, with data that can sit in a single analytical engine.

Free distribution View releases and downloads

DataFocus OT Heavy

A full big-data foundation.

TrinoDistributed SQL queries

Apache HiveData warehouse

Apache IcebergOpen table format

Apache HadoopDistributed storage and compute

Continues the Hadoop, Hive, Trino and Iceberg architecture, with ETL and AutoML built in.

Ontology management
ETL
AutoML

ETL Extract, transform and load data.
AutoML Automated machine-learning modelling.

Suited forEnterprises with large data volumes, an existing big-data platform, and a need for data pipelines and modelling.

Free distribution View releases and downloads

OT stands for Ontology. Choose an edition around your data scale, existing stack and implementation needs.

OT FlashOT Heavy

Ontology managementYesYes

ComputeApache Doris, in-memoryTrino, distributed SQL

Data warehouseApache DorisApache Hive · Apache Iceberg

Storage and resourcesApache DorisApache Hadoop

ETLSee edition detailsYes

AutoMLSee edition detailsYes

AdoptionFree distribution; terms accompany each packageFree distribution; terms accompany each package

Resource requirementsPlan for your data scale and workloadPlan for your data scale and workload

InstallerSee the live release catalogSee the live release catalog

Choosing and deploying

Refer to the selected edition’s included documentation for its license, service scope and node definitions
Choose data-processing and modelling capabilities for your workload
Plan how data reaches Doris and how often it is refreshed
Before migrating, confirm target versions, source mappings and ontology export scope
Plan the system and resources around data volume, concurrency and model requirements

To be clear

What is free, and what is not.

Two editions, both free to self-hostFlash and Heavy distinguish data foundations. Free self-hosted software remains closed source; the release links below show which installation packages are available.
Free software is not free operationWhen self-hosting, servers, model usage, third-party APIs and operation still have costs. No model plan is required to download the software.
Need deployment help?Contact support to discuss your environment and requirements if you need a hosted deployment or technical help.
Downloading and licensing remain separateGitHub downloads do not depend on an account, payment or activation service status. Installed products still follow their release terms and License V2; cloud service retains its existing plans and authorization flow.

Start with one domain: data, documents, an owner and a result someone can accept.

Try a business task first Discuss your deployment Work with a builder