Symbols text is just text that is made out of symbols: 🍟💝 ｔĤⒾş ᶤｓ sＹ爪𝐁𝕆l𝔰 тє𝓧𝐭 😈🔥.
Note that if you can't see any of the above symbols, or they appear as boxes, question marks, or other "default" characters, then that's because your device or browser doesn't currently support all of the unicode characters. Don't fret thought! Mobile browsers are implementing more and mroe characters every months, so it shouldn't be too long until your device supports all the characters of modern web browsers like Firefox and Chrome. If you're not using Firefox, I highly recommend it - they're one of the biggest supporters of the web as an open platform.
That aside... this is a simple online tool that allows you to generate symbols text by putting regular alphabetical symbols (characters) in the first box, and many types of symbolic representation will appear in the left box. Make sure you scroll down in the output box to see all the different variations.
Symbols text is great if you want to spruce up your instagram bio or add some eye-catching text bling to your captions - and I hope this tool makes it really easy to do that. The symbols are all part of the unicode standard which will eventually be implemented in all modern browsers, so there's almost no limit to where you can use this text on the internet. It mostly depends on the users viewing your bio/caption/comment/status/etc. - if they are using a modern browser and device, then they should be able to view most symbols (especially if it's a desktop browser). If they're viewing on an older phone then your cool textual symbology might not quite get through to them (it will display as plain rectanges, question marks or something similar).
There is another slight potential source of trouble (though rarer): the font used on the website you copy and paste symbols to. If it has a really weird font, it may not render your symbols properly.
Having said all that, you should be able to post it to your tumblr posts, facebook status updates, twitter tweets, agario nick names - basically anywhere you can submit text, you can submit unicode symbols text.
In case anyone was confused about this: the above symbols are not ASCII symbols. There are lots of fun symbols in the ASCII set, but it's very small. The ASCII standard has a couple of hundred symbols, where as the unicode set has tens of thousands of symbols - and in fact, the entire ASCII set is included in the unicode standard.
If you're trying to use symbols text on your iPhone or android device, you shouldn't have too much trouble, except that some of the symbols won't work yet. So just keep in mind that your text message symbols may not work for the reciever, because they could have an older device or whatever - and there's no standards for native devices like there is for the web.
If you've got any ideas for other fonts that I should include in this translator, let me know! I'll do my best to improve this when I come across new and interesting symbol fonts. Please just pop your suggestions in the comments area.