Google Mail, GMail, Goomoji

• https://mail.google.com/mail/e/{3 uppercase hexadecimal digits, no extension}
• Google Talk: https://mail.google.com/mail/e/gtalk/{3 uppercase hexadecimal digits, no extension}
• Japanese compatibility: https://mail.google.com/mail/e/{provider}_ne_jp/{3 uppercase hexadecimal digits, no extension}, provider: {docomo|ezweb|softbank}
• Unicode: http[s]://mail.google.com/mail/e/{4 or 5 lowercase hexadecimal digits}

Gmail

• https://support.google.com/chat/answer/161882
• http://slangit.com/emoticons/shortcuts/gmail
• https://pc.net/emoticons/shortcuts/gmail
• http://www.emoticonr.com/emoticons/google

Code	Image	Unicode	Description
;-)		😉	Winking
;)		😉	Winking
;^)		😉😜	Wink
:-)		☺️🙂	Smile
:-*		😘😗😙😚	Kiss
:-/		😕	Perplexed
:-\|		😐😑	Indifferent
:-D		😀😃	Big Grin
:-o		😮😯	Shocked
:-P		😛	Sticking Tongue Out
:-X		😘😗😙😚	Kiss
:'(		😢	Crying
:(		☹️🙁	Frown
:(:)		🐷	Pig
:(\|)		🐵	Monkey
:)		☺️🙂	Smile
:{		#164	Moustache
:*		😘😗😙😚	Kiss
:D		😀😃	Grin
:P		😛	Sticking Tongue Out
[:\|]		🤖	Robot
}:-)		😈	Devil
=)		☺️🙂😀😸	Happy
=D		😃😄😺	Very Happy
B-)		😎	Cool
X-(		😠	Angry

Code	Image	Unicode	Description
>.<		😖😡😠🙁☹️🙍	Upset
+/'\		🔔?	Cowbell
</3		💔	Broken Heart
<3		❤️	Heart
V.v.V		🦀	Crab
~@~		💩	Poop
\m/		🤘	Rocking

JS Code

Since I couldn’t find an official and complete Google reference document, I looked at the current Javascript source code of Gmail/Hangouts.

ASCII Emoticons

        Ioa = {
            "!:)": 128579,
            "!:-)": 128579,
            "(=^..^=)": 128568,
            "(=^.^=)": 128568,
            "(N)": 128078,
            "(Y)": 128077,
            "(]:{": 128115,
            "(n)": 128078,
            "(y)": 128077,
            "-<@%": 128029,
            "-_-": 128529,
            ":''(": 128557,
            ":''D": 128514,
            ":'(": 128546,
            ":(": 128542,
            ":(:)": 128055,
            ":(|)": 128053,
            ":)": 9786,
            ":)X": 129303,
            ":*": 128535,
            ":,": 128527,
            ":-(": 128542,
            ":-)": 9786,
            ":-)X": 129303,
            ":-*": 128535,
            ":-,": 128527,
            ":-/": 128533,
            ":-D": 128512,
            ":-O": 128558,
            ":-P": 128539,
            ":-S": 128534,
            ":-\\": 128533,
            ":-o": 128558,
            ":-p": 128539,
            ":-s": 128534,
            ":-|": 128528,
            ":/": 128533,
            ":3": 128568,
            ":C": 9785,
            ":D": 128512,
            ":O": 128558,
            ":P": 128539,
            ":S": 128534,
            ":X)": 128568,
            ":\\": 128533,
            ":o": 128558,
            ":p": 128539,
            ":s": 128534,
            ":|": 128528,
            ";)": 128521,
            ";*": 128536,
            ";-)": 128521,
            ";-*": 128536,
            ";-P": 128540,
            ";-p": 128540,
            ";P": 128540,
            ";_;": 128546,
            ";p": 128540,
            "</3": 128148,
            "<3": 10084,
            "<\\3": 128148,
            "='(": 128546,
            "=(": 128542,
            "=)": 128522,
            "=*": 128538,
            "=/": 128533,
            "=D": 128516,
            "=O": 128558,
            "=P": 128539,
            "=\\": 128533,
            "=^_^=": 128568,
            "=o": 128558,
            "=p": 128539,
            "=|": 128528,
            ">.<": 128547,
            ">:(": 128545,
            ">:(X": 128581,
            ">:-(": 128545,
            ">:D<": 129303,
            ">=(": 128545,
            ">_<": 128547,
            "B-)": 128526,
            "D:": 128550,
            "O.O": 128562,
            "O:)": 128519,
            "O:-)": 128519,
            "O=)": 128519,
            T_T: 128546,
            "V.v.V": 129408,
            "X(": 128565,
            "X-(": 128565,
            "X-O": 128565,
            "X-o": 128565,
            "\\m/": 129304,
            "\\o": 128587,
            "^_^": 128513,
            "^_^;;": 128517,
            "o.o": 128558,
            "o/": 128587,
            "o_o;": 128531,
            u_u: 128532,
            x_x: 128565,
            "}:)": 128520,
            "}:-)": 128520,
            "}=)": 128520,
            "~@~": 128169

Input	Unicode
-_-	😑
-<@%	🐝
;_;	😢
;-)	😉
;-*	😘
;-p	😜
;-P	😜
;)	😉
;*	😘
;p	😜
;P	😜
:-,	😏
:-(	😞
:-)	☺
:-)X	🤗
:-*	😗
:-/	😕
:-\	😕
:-|	😐
:-D	😀
:-o	😮
:-O	😮
:-p	😛
:-P	😛
:-s	😖
:-S	😖
:,	😏
:''(	😭
:''D	😂
:'(	😢
:(:)	🐷
:(	😞
:(|)	🐵
:)	☺
:)X	🤗
:*	😗
:/	😕
:\	😕
:|	😐
:3	😸
:C	☹
:D	😀
:o	😮
:O	😮
:p	😛
:P	😛
:s	😖
:S	😖
:X)	😸
!:-)	🙃
!:)	🙃
(]:{	👳
(=^..^=)	😸
(=^.^=)	😸
(n)	👎
(N)	👎
(y)	👍
(Y)	👍
}:-)	😈
}:)	😈
}=)	😈
\m/	🤘
\o	🙋
^_^;;	😅
^_^	😁
</3	💔
<\3	💔
<3	❤
='(	😢
=(	😞
=)	😊
=*	😚
=/	😕
=\	😕
=^_^=	😸
=|	😐
=D	😄
=o	😮
=O	😮
=p	😛
=P	😛
>_<	😣
>:-(	😡
>:(	😡
>:(X	🙅
>:D<	🤗
>.<	😣
>=(	😡
~@~	💩
B-)	😎
D:	😦
o_o;	😓
O:-)	😇
O:)	😇
o.o	😮
O.O	😲
o/	🙋
O=)	😇
T_T	😢
u_u	😔
V.v.V	🦀
x_x	😵
X-(	😵
X-o	😵
X-O	😵
X(	😵

https://mail.google.com/mail/e/{lowercase hexadecimal Unicode}

Emoji Ranges

    var Hoa = [[8419, 8419], [8505, 8505], [8596, 8601], [8617, 8618], [8986, 8987], [9E3, 9E3], [9167, 9167], [9193, 9203], [9208, 9210], [9410, 9410], [9642, 9643], [9654, 9654], [9664, 9664], [9723, 9726], [9728, 9732], [9742, 9742], [9745, 9745], [9748, 9749], [9752, 9752], [9757, 9757], [9760, 9760], [9762, 9763], [9766, 9766], [9770, 9770], [9774, 9775], [9784, 9786], [9792, 9792], [9794, 9794], [9800, 9811], [9824, 9824], [9827, 9827], [9829, 9830], [9832, 9832], [9851, 9851], [9855, 9855], [9874, 9879], [9881, 9881], [9883, 9884], [9888, 9889], [9898, 9899], [9904, 9905], [9917,
        9918], [9924, 9925], [9928, 9928], [9934, 9935], [9937, 9937], [9939, 9940], [9961, 9962], [9968, 9973], [9975, 9978], [9981, 9981], [9986, 9986], [9989, 9989], [9992, 9997], [9999, 9999], [10002, 10002], [10004, 10004], [10006, 10006], [10013, 10013], [10017, 10017], [10024, 10024], [10035, 10036], [10052, 10052], [10055, 10055], [10060, 10060], [10062, 10062], [10067, 10069], [10071, 10071], [10083, 10084], [10133, 10135], [10145, 10145], [10160, 10160], [10175, 10175], [10548, 10549], [11013, 11015], [11035, 11036], [11088, 11088], [11093, 11093], [12336, 12336], [12349,
        12349], [12951, 12951], [12953, 12953], [126980, 126980], [127183, 127183], [127344, 127345], [127358, 127359], [127374, 127374], [127377, 127386], [127462, 127487], [127489, 127490], [127514, 127514], [127535, 127535], [127538, 127546], [127568, 127569], [127744, 127777], [127780, 127891], [127894, 127895], [127897, 127899], [127902, 127984], [127987, 127989], [127991, 128253], [128255, 128317], [128329, 128334], [128336, 128359], [128367, 128368], [128371, 128378], [128391, 128391], [128394, 128397], [128400, 128400], [128405, 128406], [128420, 128421], [128424,
        128424], [128433, 128434], [128444, 128444], [128450, 128452], [128465, 128467], [128476, 128478], [128481, 128481], [128483, 128483], [128488, 128488], [128495, 128495], [128499, 128499], [128506, 128591], [128640, 128709], [128715, 128722], [128736, 128741], [128745, 128745], [128747, 128748], [128752, 128752], [128755, 128758], [129296, 129310], [129312, 129319], [129328, 129328], [129331, 129338], [129340, 129342], [129344, 129349], [129351, 129355], [129360, 129374], [129408, 129425], [129472, 129472], [1041637, 1041646], [1042475, 1042476], [1042478,
        1042487]],

⃣ ℹ ↔ … ↙ ↩ ↪ ⌚ ⌛ ⌨ ⏏ ⏩ … ⏳ ⏸ ⏹ ⏺ Ⓜ ▪ ▫ ▶ ◀ ◻ … ◾ ☀ … ☄ ☎ ☑ ☔ ☕ ☘ ☝ ☠ ☢ ☣ ☦ ☪ ☮ ☯ ☸ ☹ ☺ ♀ ♂ ♈ … ♓ ♠ ♣ ♥ ♦ ♨ ♻ ♿ ⚒ … ⚗ ⚙ ⚛ ⚜ ⚠ ⚡ ⚪ ⚫ ⚰ ⚱ ⚽ ⚾ ⛄ ⛅ ⛈ ⛎ ⛏ ⛑ ⛓ ⛔ ⛩ ⛪ ⛰ … ⛵ ⛷ … ⛺ ⛽ ✂ ✅ ✈ … ✍ ✏ ✒ ✔ ✖ ✝ ✡ ✨ ✳ ✴ ❄ ❇ ❌ ❎ ❓ ❔ ❕ ❗ ❣ ❤ ➕ ➖ ➗ ➡ ➰ ➿ ⤴ ⤵ ⬅ ⬆ ⬇ ⬛ ⬜ ⭐ ⭕ 〰 〽 ㊗ ㊙ 🀄 🃏 🅰 🅱 🅾 🅿 🆎 🆑 … 🆚 🇦 … 🇿 🈁 🈂 🈚 🈯 🈲 … 🈺 🉐 🉑 🌀 … 🌡 🌤 … 🎓 🎖 🎗 🎙 🎚 🎛 🎞 … 🏰 🏳 🏴 🏵 🏷 … 📽 📿 … 🔽 🕉 … 🕎 🕐 … 🕧 🕯 🕰 🕳 … 🕺 🖇 🖊 … 🖍 🖐 🖕 🖖 🖤 🖥 🖨 🖱 🖲 🖼 🗂 🗃 🗄 🗑 🗒 🗓 🗜 🗝 🗞 🗡 🗣 🗨 🗯 🗳 🗺 … 🙏 🚀 … 🛅 🛋 … 🛒 🛠 … 🛥 🛩 🛫 🛬 🛰 🛳 … 🛶 🤐 … 🤞 🤠 … 🤧 🤰 🤳 … 🤺 🤼 🤽 🤾 🥀 … 🥅 🥇 … 🥋 🥐 … 🥞 🦀 … 🦑 🧀 󾓥 … 󾓮 󾠫 󾠬 󾠮 … 󾠷

PUA

Flags

Key tops

Slash Commands

    var pcb = function(a) {
        return a.replace(/^\/algebraic/, "| ( \u2022\u25e1\u2022)|        (\u274d\u1d25\u274d\u028b)")
    };
    var qcb = function(a) {
        return a.replace(/^\/anjali/, "\ud83d\ude4f")
    };
    var rcb = function(a) {
        return a.replace(/^\/cling/, "\ud83d\udc28")
    };
    var scb = function(a) {
        return a.replace(/^\/disapprove/, "\u0ca0_\u0ca0")
    };
    var tcb = 'Mit Sicherheit.;Es ist auf jeden Fall so.;Ohne Zweifel.;Ja, auf jeden Fall.;Du kannst dich drauf verlassen.;Meiner Ansicht nach ja.;H\u00f6chstwahrscheinlich.;Es sieht gut aus.;Ja.;Die Zeichen stehen auf "Ja".;Antwort unklar, versuche es noch einmal.;Frag sp\u00e4ter noch einmal.;Ich sage es dir lieber sp\u00e4ter.;Ich kann es jetzt nicht sagen.;Konzentriere dich und frag noch einmal.;Verlass dich nicht darauf.;Meine Antwort ist "Nein".;Meine Quellen sagen "Nein".;Die Aussichten sind schlecht.;Sehr zweifelhaft.'.split(";"),
        ucb = function(a) {
            var b = tcb[Math.floor(Math.random() * tcb.length)];
            return /^\/eightball|^\/8ball/.test(a) ? b : a
        };
    var vcb = function(a) {
        return a.replace(/^\/facepalm/, "(\uff0d\u2038\u10da)")
    };
    var wcb = function(a) {
        return a.replace(/^\/flowerbeam/, "(  \u30fb\u25e1\u30fb)\u3064\u2501\u2606\ud83c\udf38\ud83c\udf3a\ud83c\udf3c")
    };
    var xcb = function(a) {
        return a.replace(/^\/happy/, "\u1555( \u141b )\u1557")
    };
    var ycb = function(a) {
        return a.replace(/^\/idk/, "\u00af\\(\u00b0_o)/\u00af")
    };
    var zcb = function(a) {
        return a.replace(/^\/lgtm/, "\ud83d\udc4d \ud83d\udc4d \ud83d\udc4d")
    };
    var Acb = function(a) {
        return a.replace(/^\/lit/, "\ud83d\udd25 \ud83d\udd25 \ud83d\udd25")
    };
    var Bcb = function(a) {
        return a.replace(/^\/octodisco/, "\ud83c\udfb6\ud83d\udc19\ud83c\udfb6")
    };
    var Ccb = function(a) {
        return a.replace(/^\/puppyparty/, "\ud83d\udc15\ud83d\udc29\ud83d\udc15\ud83d\ude4c\ud83d\udc29\ud83d\udc15\ud83d\udc29")
    };
    var Dcb = function(a) {
        return a.replace(/^\/sadsauce/, "\u0ca5_\u0ca5")
    };
    var Ecb = function(a) {
        return a.replace(/^\/shame/, "\ud83d\udd14 \ud83d\udd14 \ud83d\udd14")
    };
    var Fcb = function(a) {
        return a.replace(/^\/shrug(gie)?/, "\u00af\\_(\u30c4)_/\u00af")
    };
    var Gcb = function(a) {
        return a.replace(/^\/success(kid)?/, "(\u2022\u0300\u1d17\u2022\u0301)\u0648 \u0311\u0311")
    };
    var Hcb = function(a) {
        return a.replace(/^\/tableback/, "\u252c\u2500\u252c\ufeff \u30ce( \u309c-\u309c\u30ce)")
    };
    var Icb = function(a) {
        return a.replace(/^\/tableflip/, "(\u256f\u00b0\u25a1\u00b0)\u256f\ufe35 \u253b\u2501\u253b")
    };
    var Jcb = function(a) {
        return a.replace(/^\/that/, "(\u261e\uff9f\u30ee\uff9f)\u261e")
    };
    var Kcb = function(a) {
        return a.replace(/^\/this/, "\u261c(\uff9f\u30ee\uff9f\u261c)")
    };
    var Lcb = function(a) {
        return a.replace(/^\/wizard(beam)?/, "(\u2229 ` -\u00b4)\u2283\u2501\u2501\u2606\uff9f.*\uff65\uff61\uff9f")
    };
    var Mcb = function(a) {
        return a.replace(/^\/(yu|whyyou)no/, "\u10da(\u0ca0\u76ca\u0ca0\u10da)")
    };

Input	Unicode
/algebraic	| ( •◡•)| (❍ᴥ❍ʋ)
/anjali	🙏
/cling	🐨
/disapprove	ಠ_ಠ
/eightball, /8ball	language-dependent, random
/facepalm	(－‸ლ)
/flowerbeam	( ・◡・)つ━☆🌸🌺🌼
/happy	ᕕ( ᐛ )ᕗ
/idk	¯\(°_o)/¯
/lgtm	👍 👍 👍
/lit	🔥 🔥 🔥
/octodisco	🎶🐙🎶
/puppyparty	🐕🐩🐕🙌🐩🐕🐩
/sadsauce	ಥ_ಥ
/shame	🔔 🔔 🔔
/shrug, shruggie	¯\(ツ)/¯
/success, /successkid	(•̀ᴗ•́)و ̑̑
/tableback	┬─┬ ノ( ゜-゜ノ)
/tableflip	(╯°□°)╯︵ ┻━┻
/that	(☞ﾟヮﾟ)☞
/this	☜(ﾟヮﾟ☜)
/wizard, /wizardbeam	(∩ ` -´)⊃━━☆ﾟ.*･｡ﾟ
/yuno, /whyyouno	ლ(ಠ益ಠლ)