You can convert a file or directory with it as well, I will show examples here:
Mask argument is optional I just used it to show its possible
Converting a directory:
![Image](https://FastImage.x10.mx/i/uM182weTFM.png)
Converting a file:
![Image](https://FastImage.x10.mx/i/N6YW7l4hrS.png)
Drag and drop works as well
Download : Here
Something I made in about 10 minutes