Free and open first

Best Data Virtualization Software in 2026

When data lives across different systems, data virtualization software gives you ways to query or expose it through a shared access layer. Compare source connectors and access protocols to see which sources and connection methods are covered; then check deployment model, REST API access, and semantic-layer support. Query acceleration is another capability to weigh, while free-plan availability and paid-from pricing give you cost details. Query Streams, Stardog, and Apache Drill are among the named options. Consider the data you need to reach and how people or services will access it as you compare the listed features.

25 apps
Research read 23 Sept 2026
How the order is worked out

1

PrestoDB

Free plan Open source APILinuxMac+2

PrestoDB is a free query engine for federating queries across heterogeneous sources, with deployment and security options documented.

9.0 Open source Visit site
2

Virtuoso Universal Server

Free plan Open source APILinuxMac+3

Choose Virtuoso if you need a multi-model database that can present data from different sources through one view, with both open-source and commercial licensing available.

8.5 Open source · 30-day trial Visit site
3

Apache Drill

Free plan APILinuxMac+2

Apache Drill offers in-place SQL queries across varied data sources, with options for BI tools and custom applications.

7.7 Open source Visit site
4

Denodo Platform

Free plan APILinuxSelf-hosted+2

Denodo Platform brings data access, shared definitions, and governance into one data layer, with multiple integration approaches and AI features.

7.6 Pricing on request Visit site
5

Enterprise Enabler

Free plan APILinuxMac+3

Choose Enterprise Enabler if you need to federate live data across systems and give users tools for catalog search, lineage, and virtual modeling.

7.6 Visit site
6

Query Streams

Free plan APILinuxMac+3

Query Streams brings database and API access into spreadsheets, AI tools, and scheduled syncs, with read-only query controls and credentials kept on the user's network.

7.3 Free plan · paid from $15/mo · 30-day trial Visit site
7

Ontop

Free plan APILinuxMac+3

Choose Ontop if you need an open source way to expose relational databases as virtual knowledge graphs and query them with SPARQL.

7.2 Open source Visit site
8

Spice.ai OSS

Free plan APILinuxMac+2

Spice.ai OSS combines federated SQL, data acceleration, search, and AI inference in a self-hostable, open-source package.

7.2 Free plan Visit site
9

Stardog

Free plan AndroidAPIiPhone+5

Stardog offers data virtualization, semantic querying, and knowledge-graph tools across several deployment options.

7.1 Free plan Visit site
10

Starburst Galaxy

Free plan APILinuxWeb

Galaxy brings federated SQL queries, ingestion, and Iceberg maintenance together in a managed cloud service.

7.0 Free plan · paid from $0.50 · 30-day trial Visit site
11

Trino

Free plan APILinuxSelf-hosted+1

Trino is aimed at federated SQL analytics across data systems, with deployment choices for cloud and on-premises environments.

7.0 Free plan Visit site
12

Teiid

Free plan APILinuxSelf-hosted

Teiid provides a gateway approach for querying multiple enterprise data sources through familiar interfaces, without storing the data itself.

6.9 Open source Visit site
13

CData Connect AI

Free trial APIWeb

CData Connect AI combines direct source access, multiple protocols, and controls for identity, credentials, and auditing.

6.3 14-day trial Visit site
14

SAP Master Data Governance

Free plan Web

6.2 Free plan · pricing on request Visit site
15

Spotfire Data Virtualization

Free trial APILinuxSelf-hosted+2

Spotfire Data Virtualization is a paid add-on for querying data across sources, with multiple deployment options and a broad adapter set.

6.1 Pricing on request Visit site
16

K2view Dynamic Data Virtualization

Paid APILinuxSelf-hosted+1

K2view combines a business-entity semantic layer with choices about access and persistence. Organizations can request pricing or use the 30-day trial to evaluate its fit.

5.9 Pricing on request · 30-day trial Visit site
17

Querona

Paid APISelf-hostedWeb+1

Querona combines virtualized data access, BI connectivity, query acceleration, and governance controls.

5.8 Pricing on request Visit site
18

Virtual Data Platform

Free trial AndroidAPIiPhone+3

Choose Virtual Data Platform if your organization needs live access to data across systems while retaining source-system permissions for each user's queries.

5.8 Pricing on request Visit site
19

Promethium

Paid APISelf-hostedWeb

Promethium combines distributed querying, business context, answer validation, and query-time governance in one platform.

5.7 Pricing on request Visit site
20

Kubling

Paid APILinuxSelf-hosted+1

Choose Kubling when agents need a shared model for operating across IT or OT sources, while each provider retains its source credentials and logic.

5.6 Open source Visit site
21

SAS Federation Server

Paid APILinuxSelf-hosted+2

SAS Federation Server brings multiple data sources into a shared federated view, with access controls and data-quality functions.

5.6 Pricing on request Visit site
22

SAP Customer Data Platform
by SAP Customer Data Platform
Paid APIWeb

Consider SAP Customer Data Platform if your organization needs permission-aware customer profiles, real-time segmentation and integrations across enterprise systems.

5.4 Visit site
23

Stratio Semantic Layer

Paid APISelf-hostedWeb

Stratio Semantic Layer provides a shared governed model for data and AI consumers, with several deployment choices. Prospective customers must contact the team for pricing or a demo.

5.3 Pricing on request Visit site
24

IBM Data Virtualization

Paid Web

4.7 Pricing on request Visit site
25

Teradata QueryGrid

Paid

3.8 Pricing on request Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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