Coalesce vs Duckie

About

Coalesce is a data transformation platform founded in 2020 and headquartered in San Francisco, California. The company was founded by Nick Freiling and Dave Abercrombie, data transformation veterans from the business intelligence and data warehousing industry, to build a visual development environment for Snowflake that gives data engineers the productivity of a GUI without sacrificing the code control and version management that SQL-based transformation requires. Coalesce is often described as a Snowflake-native visual alternative to dbt, providing the same SQL-in-the-warehouse transformation approach with a drag-and-drop interface rather than a command-line workflow.\n\nCoalesce raised $50 million in funding from investors including Snowflake Ventures, Index Ventures, and Databricks Ventures. Its platform generates native Snowflake SQL from the visual transformation graph, allowing data engineers to inspect and customize the generated SQL at any level of detail. Coalesce's column-level lineage tracking shows exactly how data flows from source columns through transformations to destination columns, providing audit-grade transparency into how data is derived that is difficult to achieve with raw dbt projects.\n\nCoalesce's integration with Snowflake goes deep: it supports Snowflake-specific features like dynamic tables, streams and tasks for incremental processing, and clustering keys natively in the visual interface, without requiring engineers to write Snowflake-specific configuration in YAML or Jinja. This deep Snowflake integration positions Coalesce as the preferred transformation tool for data teams heavily invested in the Snowflake ecosystem. The platform also integrates with dbt for teams that want to migrate existing dbt projects into Coalesce's visual environment gradually.