Open source monitoring-tool projects
Every project in the registry tagged monitoring-tool, ranked by real GitHub adoption.
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Frequently asked questions
How many open source monitoring-tool projects are there?
This registry tracks 4 projects tagged monitoring-tool, with 29,608 GitHub stars between them. The most-adopted is Keep at 12,331 stars.
Are these monitoring-tool projects free to use?
Yes — 2 of the 4 carry an explicit open-source licence across 2 distinct licences, so there is no licence fee. Where a project also sells a hosted or enterprise version, the self-hosted path remains free.
Which monitoring-tool project should I choose?
The list above is ranked by GitHub stars, but stars measure attention rather than fit. Check three things on each card: the licence (permissive versus copyleft), the language it is written in, and the last-push date — a high-star project that has not been pushed in a year is a liability.
Are these monitoring-tool projects still maintained?
3 of the 4 were pushed in the last 90 days, and every card shows its exact last-push date so you can see the rest. Sort your shortlist by that date before committing to a migration.