ERDeux
Interactive Entity-Relationship Diagram Viewer
Data teams working with modern data stacks spend hours trying to understand the schema of source systems like Salesforce, Dayforce, Workday, and dozens of other operational platforms. Existing ER diagram tools either require a live database connection, cost thousands of dollars, or produce static images that are impossible to navigate at scale.
We built ERDeux because nothing else on the market gave data engineers what they actually need: a fast, interactive, embeddable ER diagram viewer that works with schema definition files and requires zero database connectivity. Whether you are onboarding onto a new data source, reviewing a data model for a warehouse migration, or documenting your lakehouse architecture, ERDeux lets you see the full picture in seconds.
Why Data Teams Choose ERDeux
Purpose-built for the modern data stack. No database connection required, no license fees, no limitations.
Multi-Format Schema Support
Supports DBML and TBLS (JSON) schema formats out of the box. Import your existing schemas from any major database or data warehouse system.
Interactive Exploration
Click tables and columns to trace relationships. Toggle between all columns, keys-only, or table-only views to focus on what matters.
Multiple Layout Algorithms
Choose from hierarchical, force-directed, grid, spiral, or proximity-based layouts. Each optimized for different schema topologies.
Relationship Tracing
Animated connection lines highlight foreign key relationships. Instantly see how tables connect across your entire data model.
Zero Configuration
Drop in your DBML or JSON schema and get an interactive diagram immediately. No server setup, no database connection required.
Export & Share
Export diagrams as PNG or PDF with optional watermarking. Share schema visualizations with your team for documentation and reviews.
Built for Real Data Engineering Workflows
Source System Onboarding
When your team connects a new operational system through DLH, ERDeux instantly visualizes every table, column, and relationship. No more scrolling through DDL scripts or guessing how VENDOR_ID in one table maps to ID in another.
Data Warehouse Architecture Reviews
Use the keys-only view to focus on referential integrity across your Snowflake, BigQuery, Databricks, or Redshift schemas. Trace foreign key chains across fact and dimension tables to validate your star schema design.
Documentation & Knowledge Sharing
Export publication-ready PNG or PDF diagrams for your data catalog, Confluence pages, or stakeholder presentations. ERDeux diagrams are clear enough for business analysts and detailed enough for engineers.
Embed in Your Own Applications
ERDeux is a React component you can drop into any Next.js, Vite, or Create React App project. Use it in internal tools, customer portals, or documentation sites. The component is lightweight, tree-shakeable, and fully themeable.
Live Demo: Bill.com Schema
This is a live, interactive ERDeux diagram rendering the Bill.com accounts payable and receivable platform schema from DLH.io — the same schema that powers the Bill.com connector entity relationship diagram seen in the connector documentation on our platform. Scroll to zoom, drag to pan, and click any table to explore its columns and relationships.
Loading ERD schema...
How DLH.io Uses ERDeux
Every connector in the DLH platform includes an interactive ERD powered by ERDeux. When customers connect a source system — whether it is Dayforce for HR and payroll, Salesforce for CRM, or Toast for restaurant operations — they can immediately visualize the complete data model that will land in their data warehouse.
This transparency is critical. Data engineers need to understand referential integrity, primary and foreign key relationships, and table structures before writing transformations. ERDeux eliminates the guesswork and accelerates time-to-value for every new data integration.
Get Started with ERDeux
Install the npm package and render your first interactive ER diagram in under a minute.
npm install @dlh.io/dlh-erd-viewer-deux