Data modeling and database design tools: enterprise modelers with reverse and forward engineering, browser-based ER diagram tools, and engine-specific designers.
Last updated November 2026. Each listing links to its full profile or guide, which shows its own review date. No vendor paid for inclusion and the order is alphabetical, not a ranking.
All database modeling & design listings
Freemium
dbdiagram.io
Holistics' browser ER diagram tool: write the schema in open source DBML, export SQL and share diagrams; free plan.
Freemium
DrawSQL
Collaborative browser ER diagrams for MySQL, PostgreSQL, SQL Server and MariaDB, with DDL and Laravel migration export.
Paid
ER/Studio Data Architect
Idera's Windows data modeller with IDEF1X or IE notation, broad database support and published per-user tier prices.
Paid
erwin Data Modeler
Quest's enterprise data modeller with forward and reverse engineering, a shared model mart and many target databases.
Freemium
Hackolade
Multi-model schema design for NoSQL, relational, warehouse, Avro and API targets; free Community, paid per-seat plans.
Paid
Moon Modeler
Datensen desktop schema designer for MongoDB, Mongoose, Cosmos DB and DocumentDB, sold as a perpetual licence.
Free
Oracle SQL Developer Data Modeler
Oracle's free logical, relational and physical modeller with DDL for Oracle, SQL Server and Db2, plus Git support.
Freemium
pgModeler
PostgreSQL-only modeller: free GPLv3 Community source code; paid Plus adds binaries, reverse engineering and diff.
Paid
SqlDBM
Browser-based data modelling for Snowflake, Databricks, BigQuery and other platforms, with Git and dbt integration.
Paid
Vertabelo
Browser-based modeller for ten engines, now sold by Redgate as Redgate Data Modeler; per-user yearly plans.
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