This is a tool that lets you hide/show text within other text using Unicode tags and Base64. I doubt anyone will have much use for this format, but oh well, I made it anyways.
For each Tag64 string you want to insert, simply type "Tag64[text you want to be hidden]" without quotes. For example, typing "Hello world! Tag64[use cedar]" will show up as "Hello world! ", and when decoded will show up as "Hello world! use cedar". You can also add a backslash between Tag64 and [ to just type Tag64[ without encoding it. Also, you can't embed Tag64 inside Tag64. Sorry.