head to head · open source
Uptime Kuma vs RedELK
Uptime Kuma has 91,498 GitHub stars, 8,431 forks, 805 open issues and last shipped yesterday. RedELK has 2,670 stars, 391 forks, 13 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 3,327% (91,498 vs 2,670 stars). Uptime Kuma is written in JavaScript under MIT; RedELK is written in Python under BSD-3-Clause. Uptime Kuma has attracted 9% as many forks as stars, RedELK 15%. RedELK 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.
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Side by side
| Uptime Kuma | RedELK | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 2.7K |
| License | MIT | BSD-3-Clause |
| Written in | JavaScript | Python |
| Last push | 2026-09-18 | 2026-09-18 |
| Forks | ⑂ 8.4K | ⑂ 391 |
| 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 RedELK if
- You want the RedELK feature set and don't need the biggest community
- You prefer the BSD-3-Clause license terms
- Your stack matches Python
- You evaluated both and RedELK 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 RedELK
RedELK is a red team's SIEM — an Elasticsearch, Logstash and Kibana based system that collects operational logs from red team teamservers and traffic logs from redirectors into one enriched central location, built for red team operators and for the white teams that need oversight of long running engagements.
read the full RedELK overview →
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Frequently asked questions
Is Uptime Kuma or RedELK more popular?
Uptime Kuma has 91,498 GitHub stars and RedELK has 2,670. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and RedELK free?
Both are open source. Uptime Kuma is licensed under MIT and RedELK under BSD-3-Clause. Neither carries a licence fee.
What is the difference between Uptime Kuma and RedELK?
Uptime Kuma is written in JavaScript and RedELK 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 RedELK?
Choose Uptime Kuma if you want the larger community (91,498 stars) or its MIT licence terms. Choose RedELK if its feature set, stack or BSD-3-Clause licence fits better. Both are self-hostable.