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Nessie is focused on working with the widest range of tools possible. If a tool creates or reads data, Nessie seeks to work with it. Current Nessie integrations/tools include the following:

Feature Matrix

Spark 31 Nessie CLI Flink
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Iceberg Tables


The Nessie Demos GitHub repository contains a set of demos that help users understand how Nessie works.

  1. Spark 3 supports both SQL and dataframe access. Consumption can be done via existing Iceberg catalogs with Nessie extensions or through the Nessie Catalog, which currently exposes both of these formats.