As a programmer, it’s always really difficult for me to find high quality art to use in games. Too often there’s not enough of a consistent style, or it’s not cheap enough to use for a hobby project. Finding Kenney.nl was an absolute life saver for me. He has thousands of royalty free assets you can use in your games. You can even use them for commercial projects!
His art is really amazing, but unfortunately his sprite sheets don’t come with JSON files. They come with XML, but several JS game engines (like pixi.js) don’t accept XML files, they only accept JSON.
To solve this problem, I wrote a small PHP script that converts XML files to JSON files for use with game engines.
Take a look at it on my GitHub, and pull requests are always welcome.