A modern data dictionary
to evaluate data quality

With Atlan's auto-generated data dictionary, set up a single source of truth, build 360° data profiles and get a complete health check report on all your data.

The problem with a traditional data dictionary

A traditional data dictionary (aka metadata repository) only stores metadata. It doesn't tell you whether your data is complete, accurate or useful for further analysis. Nor does it help you understand what your data means, especially for business operations.

Enter the modern data dictionary—your go-to tool to verify data quality, detect anomalies and build transparency within data teams.

Studies show that knowledge workers waste up to 50% of time hunting for data, identifying and correcting errors, and seeking confirmatory sources for data they do not trust.

Harvard Business Review

Data's Credibility Problem, Thomas C. Redman

Democratizing data access

Build 360° data profiles to understand your data

Go beyond a simple metadata repository or a business glossary by bringing together human tribal knowledge, business context, metadata

Go beyond a simple metadata repository or a business glossary by bringing together human tribal knowledge, business context, metadata

Crowdsourced metadata

Business glossary

Data glossary

Data tagging


Data support desk

Detect anomalies to evaluate and monitor data quality

Get data health check reports to build trust in your data

Print and share dictionaries to encourage transparency

With Atlan, your data is instantly portable and reusable across your ecosystem

Let your data live where you want it to and connect with the tools you choose. Make it easy for anyone to use the data they need, whenever they need it, and in whichever format they desire.

Downstream BI integrations

Shareable URL

Native Excel plugin

Unified Data API

Tableau extension

Atlan is more than just a data catalog,
it is the integrated data workspace for modern teams

Visually query petabytes of data from your browser

Query petabytes of data from your browser itself and get the insights you need. All within milliseconds.

Visual SQL editor

Petabytes of data

Browser-based querying

Excel plugin

Analytics catalog

Cross-data querying

Experiment with our collaborative data canvas

Get the complete power to manipulate and play around with your data. No waiting for IT to respond.

Drag-n-drop canvas

DIY transforms

Python, R & Jupyter notebooks

Testing environment

Query & error logs

Inbuilt testing

Automate your data pipelines and eliminate grunt work

Optimize data pipelines and costs with our smart orchestration deployment. Let your data engineers focus on what matters.

No code needed

Automate pipelines

Monitor workflows


Easy debugging

Log & audit trails

See our catalog in action

Watch Video Demo

Powering data teams in 50 countries around the world