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SQLyog vs HeidiSQL: catalog facts
SQLyog	HeidiSQL
Paid Commercial software with a free trial.	Free Free and open source under the GPL. Donations are welcomed but nothing is withheld.
Windows	Windows, Linux
Schema and data comparison with synchronization Scheduled backups and sync jobs	Exports structure and data directly to another server, not just to a file Native Delphi application; it starts instantly and stays small
Windows only Limited to MySQL and MariaDB	Windows-first; the Linux builds come from a separate Lazarus branch No macOS build
Downloadable app	Downloadable app
Closed source	Open source
License not stated	License: GPL-2.0
Not stated if an account is needed	No account needed
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 21, 2026

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