https://www.notationer.com/ (a tool to switch across (code) notations, like camelCase, PascalCase, snake-case).
Frontend is mostly in React/Next.js (Some older projects have frontend still in the old ASP.NET MVC and Ajax :-)). Where the backend is needed, it is written in .Net/C# and running on Azure.
thanks for your comment :-) I think rather than using a web service people would use some library like the HTML Tidy. Regarding to opensourcing - I think I will rather use some opensource as a core lib for my project.
yes - but this is not an online service - I wanted to build something handy you can use when you are stressed at the office need to reuse some other HTML doc quickly no time to install anything :-)
I also realized this tool/lib exists after doing Html Washer - I am considering to use their lib as an underlying lib for my project
Yes, that could be more specific (and I will make it probably configurable), currently it is:
<a href>,
<body>,
<br>,
<div>,
<h1>,
<h2>,
<h3>,
<h4>,
<h5>,
<h6>,
<head>,
<hr>,
<html>,
<i>,
<img src width height>,
<li>,
<ol>,
<p>,
<ruby>,
<strong>,
<table>,
<tbody>,
<td colspan rowspan>,
<th colspan rowspan>,
<title>,
<tr>