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Understand Impact Before You Change

Know exactly what breaks when you modify a column. Impact analysis powered by column-level data lineage for dbt projects.

Quick Start Live Demo View Features

The Problem

Working with large dbt projects, I kept needing to answer a critical question: "What happens if I change this column?"

Understanding the downstream impact of schema changes is essential for safe refactoring and confident deployments. Without visibility into column-level dependencies, making changes becomes a risky guessing game.

The Solution

DBT Column Lineage provides impact analysis powered by column-level data lineage. Before you modify a column, see exactly:

  • Which models depend on it
  • Which transformations use it (SUM, CASE, etc.)
  • Which dashboards and exposures will break

Demo

Why It Matters

  • Safe Refactoring

    Make schema changes with confidence, knowing exactly what will be affected

  • Faster Development

    Stop guessing and start building. Understand dependencies instantly

  • Impact Analysis

    See the blast radius of changes before you deploy

Quick Start

# Install
pip install dbt-col-lineage

# Start exploring
dbt-col-lineage --explore

Get Started