head to head · open source
Uptime Kuma vs Plakar
Uptime Kuma has 93,190 GitHub stars, 8,655 forks, 805 open issues and last shipped yesterday. Plakar has 2,103 stars, 103 forks, 123 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 4,331% (93,190 vs 2,103 stars). Uptime Kuma is written in JavaScript under MIT; Plakar is written in Go under ISC. Uptime Kuma has attracted 9% as many forks as stars, Plakar 5%. Plakar 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 | Plakar | |
|---|---|---|
| GitHub stars | ★ 93K | ★ 2.1K |
| License | MIT | ISC |
| Written in | JavaScript | Go |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 8.7K | ⑂ 103 |
| 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 Plakar if
- You want the Plakar feature set and don't need the biggest community
- You prefer the ISC license terms
- Your stack matches Go
- You evaluated both and Plakar 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 Plakar
Plakar: open source backup engine Encrypted, deduplicated, verifiable, and scalable. Back up anything, store anywhere, restore everywhere, with zero trust encryption and no vendor lock in. Deutsch Español français 日本語 한국어 Português Русский 中文 What is Plakar? Plakar is an open source backup solution powered by Kloset and ptar. It creates snapshots of your data, stores them in an encrypted and deduplicated store, and lets you inspect, verify, and restore them later. Plakar stores backups in a Kloset, an open source, immutable data store that enables the implementation of advanced data protection scenarios. Through…
read the full Plakar overview →
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Frequently asked questions
Is Uptime Kuma or Plakar more popular?
Uptime Kuma has 93,190 GitHub stars and Plakar has 2,103. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and Plakar free?
Both are open source. Uptime Kuma is licensed under MIT and Plakar under ISC. Neither carries a licence fee.
What is the difference between Uptime Kuma and Plakar?
Uptime Kuma is written in JavaScript and Plakar in Go. 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 Plakar?
Choose Uptime Kuma if you want the larger community (93,190 stars) or its MIT licence terms. Choose Plakar if its feature set, stack or ISC licence fits better. Both are self-hostable.