Question: I used the "rolling eyes" emoji available in my iOS keyboard in a social media post, but was dismayed to find that it isn't available on my Chrome on windows 7 computer. While I could install fonts/extensions/etc to "fix" the problem on my computer's end, I actually want all my social media audience (such as it is) to enjoy all of my posts.

Is there a list or resource that shows which iOS emoji's are available broadly on windows 7+ and osx with IE, Chrome, and Firefox, and on iOS 5+ and Android 4+?

If not, can we make one here in a single wiki style answer?

Answer: 
You can see a full comparison of most current platforms at <https://emojipedia.org>
but only as far back as [Windows 8.0](https://emojipedia.org/microsoft/windows-8.0/)

For Windows 7: <http://classic.getemoji.com>
I'd be surprised to find anyone compiling such info for the nearly 2000 emoji for old os's. In any case, display depends primarily on the local font installed, so if fonts can be added, more emoji can normally be displayed on any OS. See this chart for some info:

<http://unicode.org/emoji/charts/full-emoji-list.html>