head to head · open source
Uptime Kuma vs pg_activity
Uptime Kuma has 91,498 GitHub stars, 8,431 forks, 805 open issues and last shipped yesterday. pg_activity has 3,038 stars, 190 forks, 16 open issues and last shipped 2 months ago. Uptime Kuma leads on adoption by 2,912% (91,498 vs 3,038 stars). Uptime Kuma is written in JavaScript under MIT; pg_activity is written in Python under PostgreSQL. Uptime Kuma has attracted 9% as many forks as stars, pg_activity 6%. Uptime Kuma was the more recently maintained of the two, and both are self-hostable with no licence fee. The two share 1 topic tag (monitoring), so they are genuine substitutes rather than adjacent tools.
Two open source projects, one decision. Both are free and self-hostable — the differences are community size, license terms, language stack and release pace.
← all 13541 open source comparisons
Side by side
| Uptime Kuma | pg_activity | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 3.0K |
| License | MIT | PostgreSQL |
| Written in | JavaScript | Python |
| Last push | 2026-09-18 | 2026-08-01 |
| Forks | ⑂ 8.4K | ⑂ 190 |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Uptime Kuma if
- You weight community size — 91K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick pg_activity if
- You want the pg_activity feature set and don't need the biggest community
- You prefer the PostgreSQL license terms
- Your stack matches Python
- You evaluated both and pg_activity fits your workflow better
About Uptime Kuma
Uptime Kuma is a free, MIT licensed, self hosted monitoring tool with a reactive web dashboard, built for operators and teams that want to watch their own HTTP, TCP, and DNS endpoints and keep the resulting data on their own infrastructure.
read the full Uptime Kuma overview →
About pg_activity
pg activity is a top like command line tool for PostgreSQL server activity monitoring, built for database administrators, on call engineers, and developers who need real time visibility into what queries and sessions a PostgreSQL instance is running.
read the full pg_activity overview →
More in Infrastructure & Operations
Related comparisons
More Monitoring & Observability projects
Compare either of these against the rest of the Monitoring & Observability field.
Frequently asked questions
Is Uptime Kuma or pg_activity more popular?
Uptime Kuma has 91,498 GitHub stars and pg_activity has 3,038. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and pg_activity free?
Both are open source. Uptime Kuma is licensed under MIT and pg_activity under PostgreSQL. Neither carries a licence fee.
What is the difference between Uptime Kuma and pg_activity?
Uptime Kuma is written in JavaScript and pg_activity in Python. The practical differences are community size, licence terms, language stack and release cadence — all compared in the table above.
Which should I choose, Uptime Kuma or pg_activity?
Choose Uptime Kuma if you want the larger community (91,498 stars) or its MIT licence terms. Choose pg_activity if its feature set, stack or PostgreSQL licence fits better. Both are self-hostable.