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sqldef vs Flyway: catalog facts
sqldef	Flyway
Free Free and open source under the MIT and Apache 2.0 licences.	Freemium A free community edition exists, with paid editions adding governance features.
Windows, macOS, Linux, Command line	Windows, macOS, Linux, Command line
Declarative schema in plain SQL Idempotent: only needed changes are applied	Supports more than 60 databases Versioned migrations fit into CI/CD pipelines
Command line only Declarative diffs need care with destructive changes	Product pages focus on enterprise editions Governance features require a paid edition
Downloadable app	Downloadable app
Open source	Open source
License: MIT, Apache-2.0	License: Apache-2.0
No account needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked October 2, 2026	Official website Full listing and sources Checked September 24, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.