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HeidiSQL vs EMS SQL Manager: catalog facts
HeidiSQL	EMS SQL Manager
Free Free and open source under the GPL. Donations are welcomed but nothing is withheld.	Freemium Free Lite edition and free trials; full editions are paid, with backup tools from about…
Windows, Linux	Windows
Exports structure and data directly to another server, not just to a file Native Delphi application; it starts instantly and stays small	Editions for PostgreSQL, SQL Server, MySQL, Firebird, Oracle and DB2 Free Lite edition available
Windows-first; the Linux builds come from a separate Lazarus branch No macOS build	Windows only Separate products per database system
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License not stated
No account needed	Not stated if an account is needed
Works offline	Works offline
Official website Full listing and sources Checked September 21, 2026	Official website Full listing and sources Checked October 1, 2026

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