head to head · open source
Uptime Kuma vs OpenReplay
Uptime Kuma has 93,190 GitHub stars, 8,655 forks, 805 open issues and last shipped yesterday. OpenReplay has 13,090 stars, 879 forks, 180 open issues and last shipped yesterday. Uptime Kuma leads on adoption by 612% (93,190 vs 13,090 stars). Uptime Kuma is written in JavaScript under MIT; OpenReplay is written in TypeScript under a custom or non-standard licence. Uptime Kuma has attracted 9% as many forks as stars, OpenReplay 7%. OpenReplay 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 | OpenReplay | |
|---|---|---|
| GitHub stars | ★ 93K | ★ 13K |
| License | MIT | Custom / other |
| Written in | JavaScript | TypeScript |
| Last push | 2026-11-02 | 2026-11-02 |
| Forks | ⑂ 8.7K | ⑂ 879 |
| 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 OpenReplay if
- You want the OpenReplay feature set and don't need the biggest community
- You prefer the Custom / other license terms
- Your stack matches TypeScript
- You evaluated both and OpenReplay 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 OpenReplay
Français Español Русский العربية Session replay for developers The most advanced session replay for building delightful web apps. OpenReplay is an open source session replay suite you can host yourself, that lets you see what users do on your web app, helping you troubleshoot issues faster. Session replay. OpenReplay replays what users do, but not only. It also shows you what went under the hood, how your website or app behaves by capturing network activity, console logs, JS errors, store actions/state, page speed metrics, cpu/memory usage and much more. Low footprint . With a 26KB (.br) tracker that…
read the full OpenReplay overview →
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Frequently asked questions
Is Uptime Kuma or OpenReplay more popular?
Uptime Kuma has 93,190 GitHub stars and OpenReplay has 13,090. Uptime Kuma has the larger community by that measure.
Are Uptime Kuma and OpenReplay free?
Both are open source. Uptime Kuma is licensed under MIT, and OpenReplay has no licence declared in this registry. Both are free to self-host.
What is the difference between Uptime Kuma and OpenReplay?
Uptime Kuma is written in JavaScript and OpenReplay in TypeScript. 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 OpenReplay?
Choose Uptime Kuma if you want the larger community (93,190 stars) or its MIT licence terms. Choose OpenReplay if its feature set, stack or Custom / other licence fits better. Both are self-hostable.