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dblab vs Harlequin: catalog facts
dblab	Harlequin
Free Free and open source.	Free Free and open source, supported through GitHub Sponsors.
Command line	Windows, macOS, Linux, Command line
Works entirely in the terminal Supports several major SQL databases	Full SQL IDE inside the terminal, usable over SSH Adapters for DuckDB, SQLite, Postgres and more
Text interface is less discoverable than a graphical client Maintained by a small team	Installed through Python, and newer Python versions may not be supported by all dependencies Terminal interface rather than a graphical client
Downloadable app	Downloadable app
Open source	Open source
License not stated	License not stated
No account needed	No account needed
Works offline	Works offline
Official website Full listing and sources Checked September 24, 2026	Official website Full listing and sources Checked September 23, 2026

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