it’s not all in the browser. But most of it
Developing mostly in PHP and SQL, my main focus obviously is on web driven applications. So if you need a custom web tool for your intranet or internet usage, i can very likely help you.
But even if your data should not be exposed to some accessible site, web techniques can assist you, providing REST-Endpoints to feed other applications with correlated data, frequently keeping your database up to date or ex- and importing information into another formats.
Of course, both techniques can be combined in the most practical way, for example when you need to enrich informations the user gives you with already known facts. Or pre-fill forms with known facts.
used techniques
Apart from the basic usage of PHP on Apache or nginX and MySQL/Oracle databases, various established frameworks like Bootstrap, jQuery and others are used to get the job done.