Free and open first
Best Data Modeling Software in 2026
Data modeling tools let you plan, record, and revise database structures. This list is for people who need to compare modeling tools before choosing one for work or a project.
- 27 apps
- Research read 7 Oct 2026
- How the order is worked out
- 1
dbdiagram.io
Free plan APIExtensionWebdbdiagram.io offers text-based diagramming with SQL support, editor integrations, and a CLI. Check the view and sharing limits before relying on the Free plan.
- 2
ChartDB
Free plan Self-hostedWebChartDB covers schema visualization, editing, exports, and team collaboration, with a free plan and self-hosted option. Consider its free-plan limits and AI data-processing notice when evaluating it.
- 3
DbSchema
Free plan LinuxMacWindowsDbSchema brings database modeling, queries, documentation, and schema synchronization into a desktop application.
- 4
Hackolade Studio
Free plan APILinuxMac+2Hackolade Studio covers data modeling, schema engineering, and documentation across many targets.
- 5
MySQL
Free plan APILinuxMac+2 - 6
drawDB
Free plan Self-hostedWebdrawDB covers database diagram imports, exports, and multiple dialects, with collaboration and AI functions listed in its Pro plans.
- 7
DrawSQL
Free plan APIWebDrawSQL combines schema visualization, SQL import, exports, and team features in one web tool.
- 8
pgModeler
Free plan LinuxMacWindowspgModeler brings visual modeling and deployment workflows to a local PostgreSQL tool, with a free community edition and Plus features.
- 9
SchemaCrawler
Free plan APILinuxMac+2SchemaCrawler provides a broad set of schema discovery, documentation, comparison, and diagramming options at no software cost.
- 10
ERBuilder Data Modeler
Free plan WindowsERBuilder covers both forward and reverse database engineering, with a broad list of supported databases.
- 11
SchemaSpy
Free plan LinuxMacSelf-hosted+1Choose SchemaSpy if you want free, shareable database documentation generated from metadata, with diagrams, statistics, and anomaly checks.
- 12
QuickDBD
Free plan WebQuickDBD offers browser-based diagramming with collaboration, SQL export, and support for several database systems.
- 13
DB-MAIN
Free plan LinuxMacWindows - 14
Oracle SQL Developer
Free plan LinuxMacWindowsOracle SQL Developer offers a free desktop toolkit with multiple database connections and practical query, editing, history, tunneling, and export features.
- 15
Toad Data Modeler
Free plan Windows - 16
Navicat Data Modeler
Free plan LinuxMacWindowsNavicat Data Modeler combines database modeling, engineering, export, and collaboration in a cross-platform desktop application.
- 17
ApexSQL Model
Free plan Windows - 18
Moon Modeler
Free trial LinuxMacWindowsMoon Modeler provides visual modeling, reverse engineering, script generation, and diagram exports for supported NoSQL databases.
- 19
DeZign for Databases
Free trial WindowsDeZign for Databases covers visual modeling, database generation, reverse engineering, synchronization, documentation, and collaboration.
- 20
ER/Studio Data Architect
Free trial WindowsER/Studio Data Architect combines modeling, reverse engineering, schema comparison, and dictionary tools in a self-hosted Windows product.
- 21
SAP Extended Enterprise Content Management by OpenText
by SAP Extended Enterprise Content Management by OpenTextPaid AndroidiPhoneLinux+4 - 22
WWW SQL Designer
Free plan Web - 23
DbWrench
Paid LinuxMacWindows - 24 4.3 Visit site
- 25
SAP PowerDesigner
Paid WebWindows
#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price
Compare free plans, trial periods, paid starting prices, and licence terms. Before choosing, review compatibility with your platform and database engines, along with engineering direction, deployment, version history, and export formats.
Questions
Is data modeling software available for free?
Yes. Items on this list include free plans, while other products are paid or freemium. Check the listed pricing note for the plan and starting price.
Do these tools offer free trials?
Trial periods listed here include 7, 14, and 15 days. Trial availability and length depend on the product.
Which platforms can run these tools?
Products on this list are available through Windows, Linux, macOS, the web, self-hosted deployments, or APIs, depending on the item. Check the product details for its supported option.
What features should I compare?
Review each product's free plan, starting price, reverse- and forward-engineering options, database engines, deployment method, version history, and export formats.
Can I read or change the source code?
Check the licence for the specific tool. A licence determines whether you can read, modify, and redistribute its code.