Im a big fan of browser extensions as well. They are great side projects that can grow to hundreds of thousands of users. They can be as simple as html and java

Im a big fan of browser extensions as well. They are great side projects that can grow to hundreds of thousands of users. They can be as simple as html and javascript. My most popular extension is a url shortener tool and its grown to over 400k users https://t.ly/extension https://t.ly/extension