FontForge - Free (libre) font editor for Windows, Mac OS X and GNU+Linux
Copy and Paste Emoji - Copy and paste every emoji with ๐ no apps required. ๐๐๐๐๐๐๐๐๐ณ๐๐ฃ๐ข๐๐ญ๐ช๐ฅ๐ฐ๐ฉ
Glyphs - Make everything from dingbat webfonts to full-fledged text typefaces in the most Mac-like font...
EmojiTerra - EmojiTerra is one of the interesting websites that provides you a chance to download emojis of every type in the form of files and allows you to share them with your friends or family members.
FontCreator - This professional font editor allows you to create and edit TrueType and OpenType fonts.
JoyPixels - Freemium set of 3,057 native emoji icons โจ