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Nezha vs Tianji: catalog facts
Nezha	Tianji
Free Free and open source.	Free Free and open source. Hosting, hardware and any external services are separate.
Linux, Self-hosted	Self-hosted
Lightweight dashboard and agents SSL certificate expiry monitoring	Provides several monitoring views in one application Can be hosted on your own infrastructure
Needs a server to host the dashboard Much of the community documentation is in Chinese	Requires deployment and configuration of data collection.
Self-hosted	Self-hosted
Open source	Open source
License not stated	License: Apache-2.0
No account 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 24, 2026	Official website Full listing and sources Checked September 22, 2026

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