I agree Jaime, the UI is a significant consideration. Uptime-numa with 8K forks and 87K stars! 😳

But Xymon in old school .c has amazing scale.

What OS are you running Xymon on? I’ll see if I can get a 5.0.1 build for you.

~ spiderr

On Jun 9, 2026, at 3:31 PM, Jaime Kikpole via Xymon <xymon@xymon.com> wrote:

For what it's worth, I think it looks nicer.  This might improve the chances of people looking for a new tool picking Xymon instead of, for example, Uptime Kuma.

 

Jaime Kikpole Director of Technology Ichabod Crane Central School District (518) 758-7575, x5425

On Tue, Jun 9, 2026 at 12:58 PM spiderr <spiderr@bitweaver.org> wrote:

Thanks to all the great work being done to get Xymon on Github lately, I created a fork where I refactored Xymon HTML output to be HTML 5 compliant. I had to do this in my own projects years ago, so I "put the band back together”.

This is not a theme, this is a complete purge of Web 1.0 table based layouts embedded in the .c to a modern HTML5 compliant, responsive (aka mobile) interface. (I did however implement proper CSS themeing for easy customization).


Release Details:
https://github.com/spiderr/xymon/releases

Code:
https://github.com/spiderr/xymon/tree/html5-bootstrap

EL9 rpm build:
https://github.com/spiderr/xymon/releases/download/v5.0.1/xymon-5.0.1-0.el9.tera.x86_64.rpm


Snippet from the release notes:

100% UI changes, 0% everything else. My hard rule was every daemon, protocol, data format, CGI API, URL, and query string is identical to 4.3.30. Scripts, bookmarks, and integrations will not notice the difference. The only thing that changed is the HTML that comes out of the CGIs and page generator. This is a large refactor so I presumptuously dubbed it 5.0, because... HTML5 + Bootstrap 5 = Xymon 5...

I could say a lot more, but the release page has almost all changes well documented.


Here are some screenshots:










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