try prova-editor online

The light,online and free version of provaEditor

Commands: 

salva=saves a file with the name in the box "nome file.txt" and the content in the upper box

Carattere=change font

Colore=change text color

Condividi (doesn't work on every device)=share file with an intent

i=italic font   b=bold font u=underlined font

sfondo=change color of the text box