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HeidiSQL vs Database .NET: catalog facts
HeidiSQL	Database .NET
Free Free and open source under the GPL. Donations are welcomed but nothing is withheld.	Freemium A free edition is available, with paid Plus, Standard and Professional editions.
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	Supports a very wide range of database engines and data sources Portable single executable with no installation
Windows-first; the Linux builds come from a separate Lazarus branch No macOS build	Windows only Some features are reserved for the paid editions
Downloadable app	Downloadable app
Open source	Closed source
License: GPL-2.0	License: Freeware
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 2, 2026

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