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pgAdmin vs Adminer: catalog facts
pgAdmin	Adminer
Free The open-source application is available without a license fee.	Free Free and open source under the Apache licence or the GPL.
Windows, macOS, Linux, Web, Self-hosted	Web, Self-hosted
Covers the full PostgreSQL object model, not just tables and queries Runs as a desktop app or a shared web application	A single file to upload, with no installation or dependencies Supports many database engines from the same interface
The web interface is heavy and slow to start PostgreSQL only	Leaving it on a public server is a serious risk and it must be removed or protected Fewer conveniences than larger administration tools
Downloadable app, Self-hosted	Self-hosted, Web application
Open source	Open source
License: PostgreSQL	License: Apache-2.0
Not stated if an account is needed	Not stated if an account is needed
Not stated if it works offline	Not stated if it works offline
Official website Full listing and sources Checked September 22, 2026	Official website Full listing and sources Checked September 22, 2026

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