If you are in search of a plain text editor on your browser or on your Android or iOS devices, Writebox is worth a look, especially since it syncs with Dropbox and Google Drive. Writebox syncs your text files to these cloud services and across all the devices you use so you’d get the latest version of your file. The app is as simple a text editor as you can expect without formatting tools. The most you can do is set font and size. But some of us would need just that. You can also download the file as text or HTML. Writebox is free from the Chrome Web Store or for online but costs $1.99 for Android and iOS versions.
Source: Lifehacker