head to head · open source
Uptime Kuma vs logging-log4j2
Uptime Kuma has 91,498 GitHub stars, 8,431 forks, 805 open issues and last shipped today. logging-log4j2 has 3,636 stars, 1,743 forks, 212 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 2,416% (91,498 vs 3,636 stars). Uptime Kuma is written in JavaScript under MIT; logging-log4j2 is written in Java under Apache-2.0. Uptime Kuma has attracted 9% as many forks as stars, logging-log4j2 48%. Uptime Kuma was the more recently maintained of the two, and both are self-hostable with no licence fee.
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 | logging-log4j2 | |
|---|---|---|
| GitHub stars | ★ 91K | ★ 3.6K |
| License | MIT | Apache-2.0 |
| Written in | JavaScript | Java |
| Last push | 2026-09-18 | 2026-09-17 |
| Forks | ⑂ 8.4K | ⑂ 1.7K |
| 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 logging-log4j2 if
- You want the logging-log4j2 feature set and don't need the biggest community
- You prefer the Apache-2.0 license terms
- Your stack matches Java
- You evaluated both and logging-log4j2 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 logging-log4j2
//// Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the NOTICE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to You under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the Li…
read the full logging-log4j2 overview →
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Frequently asked questions
Is Uptime Kuma or logging-log4j2 more popular?
Uptime Kuma has 91,498 GitHub stars and logging-log4j2 has 3,636. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and logging-log4j2 free?
Both are open source. Uptime Kuma is licensed under MIT and logging-log4j2 under Apache-2.0. Neither carries a licence fee.
What is the difference between Uptime Kuma and logging-log4j2?
Uptime Kuma is written in JavaScript and logging-log4j2 in Java. 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 logging-log4j2?
Choose Uptime Kuma if you want the larger community (91,498 stars) or its MIT licence terms. Choose logging-log4j2 if its feature set, stack or Apache-2.0 licence fits better. Both are self-hostable.