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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
Delta Lake 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 and Delta Lake catalogs with Nessie extensions or through the Nessie Catalog, which currently exposes both of these formats.