head to head · open source
Uptime Kuma vs NLog
Uptime Kuma has 93,190 GitHub stars, 8,655 forks, 805 open issues and last shipped yesterday. NLog has 6,546 stars, 1,377 forks, 50 open issues and last shipped 2 days ago. Uptime Kuma leads on adoption by 1,324% (93,190 vs 6,546 stars). Uptime Kuma is written in JavaScript under MIT; NLog is written in C# under BSD-3-Clause. Uptime Kuma has attracted 9% as many forks as stars, NLog 21%. 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 | NLog | |
|---|---|---|
| GitHub stars | ★ 93K | ★ 6.5K |
| License | MIT | BSD-3-Clause |
| Written in | JavaScript | C# |
| Last push | 2026-11-02 | 2026-11-01 |
| Forks | ⑂ 8.7K | ⑂ 1.4K |
| Self-hosting | Yes | Yes |
| Data ownership | Your server | Your server |
pick Uptime Kuma if
- You weight community size — 93K stars and counting
- You want the MIT license terms
- Your stack matches JavaScript
- You value the larger contributor base for long-term maintenance
pick NLog if
- You want the NLog feature set and don't need the biggest community
- You prefer the BSD-3-Clause license terms
- Your stack matches C#
- You evaluated both and NLog fits your workflow better
About Uptime Kuma
Uptime Kuma Uptime Kuma is an easy to use self hosted monitoring tool. 🥔 Live Demo Try it! Demo Server (Location: Frankfurt Germany): It is a temporary live demo, all data will be deleted after 10 minutes. Sponsored by Uptime Kuma Sponsors. ⭐ Features Monitoring uptime for HTTP(s) / TCP / HTTP(s) Keyword / HTTP(s) Json Query / Websocket / Ping / DNS Record / Push / Steam Game Server / Docker Containers Fancy, Reactive, Fast UI/UX Notifications via Telegram, Discord, Gotify, Slack, Pushover, Email (SMTP), and 90+ notification services, click here for the full list 20 second intervals Multi Languages Multiple…
read the full Uptime Kuma overview →
About NLog
NLog is a free logging platform for .NET with rich log routing and management capabilities. It makes it easy to produce and manage high quality logs for your application regardless of its size or complexity. Handles both structured logging and traditional logging from any .NET language, augment with contextual information, format according to your preference and send them to one or more targets such as file or console. Major and minor releases will be posted on project news. Getting started .NET Framework ASP.NET Core .NET Core Console For the possible options in the config, check the Options list and API…
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Frequently asked questions
Is Uptime Kuma or NLog more popular?
Uptime Kuma has 93,190 GitHub stars and NLog has 6,546. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and NLog free?
Both are open source. Uptime Kuma is licensed under MIT and NLog under BSD-3-Clause. Neither carries a licence fee.
What is the difference between Uptime Kuma and NLog?
Uptime Kuma is written in JavaScript and NLog in C#. 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 NLog?
Choose Uptime Kuma if you want the larger community (93,190 stars) or its MIT licence terms. Choose NLog if its feature set, stack or BSD-3-Clause licence fits better. Both are self-hostable.