No. 8 of 27 ·Database Documentation Tools

SchemaCrawler

Windows · Mac · Linux · Self-hosted · API

Freedom report

Three barsScore 6.4

Free tierA free tier is on its own pricing page
Open codeNo open-source code on record
Runs widely3 of 6 device platforms
DocumentedPlans, terms and facts published

SchemaCrawler is ranked #8 of 27 in database documentation tools on Freedom251. It runs on API, Linux, macOS, Self-hosted, Windows. There is a free plan.

SchemaCrawler plans and pricing

All plans

SchemaCrawler Free Free and open-source software · bundled JDBC-driver distributions are GPL v3 · commercial-use licensing terms can be arranged schemacrawler.com · 30 Sept 2026

Compared on database documentation tools

Free plan: Yes
Database coverage: relational
Data lineage: Yes
Data dictionary: Yes
Schema history: Yes
Deployment: self_hosted

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The record

Purpose: SchemaCrawler is a free database schema discovery and comprehension tool for database documentation and data governance.
Schema comparison: Its schema output formats are designed to make it easy to find differences between database schemas.
Output formats: The command-line tools can output database metadata as plain text, HTML5, HTML5 with embedded diagrams, JSON, or YAML.
Diagrams and scripts: SchemaCrawler can generate entity-relationship diagrams and execute scripts in JavaScript or Python against a live database connection.
Database support: It supports almost any database with a JDBC driver, though some proprietary drivers must be downloaded separately.
Integrations: The site documents integrations with Apache Maven, GitHub Actions, GitLab pipelines, Docker, Graphviz, and templating engines including Velocity, Thymeleaf, FreeMarker, and Mustache.
Templating limit: Templating engines are not included in the SchemaCrawler download and must be downloaded separately.
AI interface: The SchemaCrawler AI MCP Server supports natural-language interaction for exploring database structure, understanding table relationships, and generating SQL queries.
Security: The security guidance says SchemaCrawler cannot vouch for the security of scripts it executes and recommends removing the scripting JAR if scripting is not needed.
SQL Server encryption: The security guidance says the server, host, and port connection method turns off encrypted connections and recommends a trusted certificate and a URL containing encrypt=true.
Support: Community support is available on Stack Overflow, while professional support packages provide direct access to the author and can cover project advice or consulting.
Support scope: The support page says only the latest SchemaCrawler version receives new feature development and security updates, and older-version support requires a Professional Support Package.
Platform requirement: SchemaCrawler works on operating systems that support Java SE 17 or better.
Online tutorial: A live online command-line tutorial works in a browser without additional software or plugins.
Price from: Free

Where it ranks on Freedom251

Best Database Documentation Tools in 2026#8 of 27

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Sources

schemacrawler.com· checked 30 Sept 2026
schemacrawler.com/database-support.html· checked 30 Sept 2026
schemacrawler.com/downloads.html· checked 30 Sept 2026
schemacrawler.com/mcpserver.html· checked 30 Sept 2026
schemacrawler.com/security-considerations.html· checked 30 Sept 2026
schemacrawler.com/consulting.html· checked 30 Sept 2026
schemacrawler.com/license.html· checked 30 Sept 2026