I have just finished this script to help testing YAML and JSON files in resources. Usage: Download the PHP file in the gist into a new folder in your device. Then copy your bin/ folder in PocketMine-MP into the new folder and run the PHP file via the PHP. command /yaml [-e] file name.yml can be used to read a YAML file and echo the PHP code that contains the same value on console. If you have -e added, you can export the file into output.php. command /json [-e] file name.json is the same except it is for JSON. command /writeyaml <file> <-key value value value>... can be used to instantiate a YAML file at <file> that represents the keys and values. Currently this command only supports writing YAML files with no nested items and with no keys of multiple words (only one word). Hope this tool helps (especially in plugin development)! Spoiler: Example for /writeyaml To output this file at plugin.yml: Code: name: Testing Plugin author: PEMapModder version: beta 1.0.0 api: [1.0.0] description: Hello world this is a testing YAML file You should enter this on console: Code: writeyaml plugin.yml -name Testing Plugin -author PEMapModder -version beta 1.0.0 -api [1.0.0] -description Hello world this is a testing YAML file Spoiler: Bonus for Windows If you are using Windows, download start.cmd so that you don't need to run the script in command prompt every time but this batch file is untested