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pgcli vs Harlequin: catalog facts
pgcli	Harlequin
Free Free and open source.	Free Free and open source, supported through GitHub Sponsors.
Command line	Windows, macOS, Linux, Command line
Context-aware auto-completion for SQL Syntax highlighting in the terminal	Full SQL IDE inside the terminal, usable over SSH Adapters for DuckDB, SQLite, Postgres and more
Terminal only, no graphical interface Homebrew install also pulls in PostgreSQL	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
Not stated if it works offline	Works offline
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

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