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PgHero vs pg_activity: catalog facts
PgHero	pg_activity
Free Free and open source.	Free Free and open source, maintained by Dalibo.
Web, Self-hosted	macOS, Linux, Command line
Surfaces slow queries and index problems at a glance Runs as a Docker image or a Rails engine	Live, top-style view of PostgreSQL activity Runs in a terminal over SSH
PostgreSQL only You host and secure the dashboard yourself	Only supports PostgreSQL Shows current activity rather than long-term history
Self-hosted	Downloadable app
Open source	Open source
License not stated	License: PostgreSQL
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 October 2, 2026

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