Reserved Strings

Strings which may be used elsewhere in code

undefined undef null NULL (null) nil NIL true false True False TRUE FALSE None hasOwnProperty then constructor \ \

Numeric Strings

Strings which can be interpreted as numeric

0 1 1.00 $1.00 1/2 1E2 1E02 1E+02 -1 -1.00 -$1.00 -1/2 -1E2 -1E02 -1E+02 1/0 0/0 -2147483648/-1 -9223372036854775808/-1 -0 -0.0 +0 +0.0 0.00 0..0 . 0.0.0 0,00 0,,0 , 0,0,0 0.0/0 1.0/0.0 0.0/0.0 1,0/0,0 0,0/0,0

--1

-. -, 999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999999 NaN Infinity -Infinity INF 1#INF -1#IND 1#QNAN 1#SNAN 1#IND 0x0 0xffffffff 0xffffffffffffffff 0xabad1dea 123456789012345678901234567890123456789 1,000.00 1 000.00 1'000.00 1,000,000.00 1 000 000.00 1'000'000.00 1.000,00 1 000,00 1'000,00 1.000.000,00 1 000 000,00 1'000'000,00 01000 08 09 2.2250738585072011e-308

Special Characters

ASCII punctuation. All of these characters may need to be escaped in some

contexts. Divided into three groups based on (US-layout) keyboard position.

,./;'[]-= <>?:"{}|_+ [email protected]#$%^&*()`~

Non-whitespace C0 controls: U+0001 through U+0008, U+000E through U+001F,

and U+007F (DEL)

Often forbidden to appear in various text-based file formats (e.g. XML),

or reused for internal delimiters on the theory that they should never

appear in input.

The next line may appear to be blank or mojibake in some viewers.

Non-whitespace C1 controls: U+0080 through U+0084 and U+0086 through U+009F.

Commonly misinterpreted as additional graphic characters.

The next line may appear to be blank, mojibake, or dingbats in some viewers.

Whitespace: all of the characters with category Zs, Zl, or Zp (in Unicode

version 8.0.0), plus U+0009 (HT), U+000B (VT), U+000C (FF), U+0085 (NEL),

and U+200B (ZERO WIDTH SPACE), which are in the C categories but are often

treated as whitespace in some contexts.

This file unfortunately cannot express strings containing

U+0000, U+000A, or U+000D (NUL, LF, CR).

The next line may appear to be blank or mojibake in some viewers.

The next line may be flagged for "trailing whitespace" in some viewers.

Unicode additional control characters: all of the characters with

general category Cf (in Unicode 8.0.0).

The next line may appear to be blank or mojibake in some viewers.

؀؁؂؃؄؅؜۝܏᠎‌‍‎‏‪‫‬‭‮⁠⁡⁢⁣⁤⁦⁧⁨⁩⁪⁫⁬⁭⁮⁯￹￺￻𑂽𛲠𛲡𛲢𛲣𝅳𝅴𝅵𝅶𝅷𝅸𝅹𝅺󠀁󠀠󠀡󠀢󠀣󠀤󠀥󠀦󠀧󠀨󠀩󠀪󠀫󠀬󠀭󠀮󠀯󠀰󠀱󠀲󠀳󠀴󠀵󠀶󠀷󠀸󠀹󠀺󠀻󠀼󠀽󠀾󠀿󠁀󠁁󠁂󠁃󠁄󠁅󠁆󠁇󠁈󠁉󠁊󠁋󠁌󠁍󠁎󠁏󠁐󠁑󠁒󠁓󠁔󠁕󠁖󠁗󠁘󠁙󠁚󠁛󠁜󠁝󠁞󠁟󠁠󠁡󠁢󠁣󠁤󠁥󠁦󠁧󠁨󠁩󠁪󠁫󠁬󠁭󠁮󠁯󠁰󠁱󠁲󠁳󠁴󠁵󠁶󠁷󠁸󠁹󠁺󠁻󠁼󠁽󠁾󠁿

"Byte order marks", U+FEFF and U+FFFE, each on its own line.

The next two lines may appear to be blank or mojibake in some viewers.

Unicode Symbols

Strings which contain common unicode symbols (e.g. smart quotes)

Ω≈ç√∫˜µ≤≥÷ åß∂ƒ©˙∆˚¬…æ œ∑´®†¥¨ˆøπ“‘ ¡™£¢∞§¶•ªº–≠ ¸˛Ç◊ı˜Â¯˘¿ ÅÍÎÏ˝ÓÔÒÚÆ☃ Œ„´‰ˇÁ¨ˆØ∏”’ `⁄€‹›ﬁﬂ‡°·‚—± ⅛⅜⅝⅞ ЁЂЃЄЅІЇЈЉЊЋЌЍЎЏАБВГДЕЖЗИЙКЛМНОПРСТУФХЦЧШЩЪЫЬЭЮЯабвгдежзийклмнопрстуфхцчшщъыьэюя ٠١٢٣٤٥٦٧٨٩

Unicode Subscript/Superscript/Accents

Strings which contain unicode subscripts/superscripts; can cause rendering issues

⁰⁴⁵ ₀₁₂ ⁰⁴⁵₀₁₂ ด้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็ ด้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็ ด้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็็้้้้้้้้็็็็็้้้้้็็็็

Quotation Marks

Strings which contain misplaced quotation marks; can cause encoding errors

' " '' "" '"' "''''"'" "'"'"''''" <foo val=`bar' />

Two-Byte Characters

Strings which contain two-byte characters: can cause rendering issues or character-length issues

田中さんにあげて下さいパーティーへ行かないか和製漢語部落格 사회과학원 어학연구소 찦차를 타고 온 펲시맨과 쑛다리 똠방각하 社會科學院語學研究所 울란바토르 𠜎𠜱𠝹𠱓𠱸𠲖𠳏

Strings which contain two-byte letters: can cause issues with naïve UTF-16 capitalizers which think that 16 bits == 1 character

𐐜 𐐔𐐇𐐝𐐀𐐡𐐇𐐓 𐐙𐐊𐐡𐐝𐐓/𐐝𐐇𐐗𐐊𐐤𐐔 𐐒𐐋𐐗 𐐒𐐌 𐐜 𐐡𐐀𐐖𐐇𐐤𐐓𐐝 𐐱𐑂 𐑄 𐐔𐐇𐐝𐐀𐐡𐐇𐐓 𐐏𐐆𐐅𐐤𐐆𐐚𐐊𐐡𐐝𐐆𐐓𐐆

Special Unicode Characters Union

A super string recommended by VMware Inc. Globalization Team: can effectively cause rendering issues or character-length issues to validate product globalization readiness.

表 CJK_UNIFIED_IDEOGRAPHS (U+8868)

ポ KATAKANA LETTER PO (U+30DD)

あ HIRAGANA LETTER A (U+3042)

A LATIN CAPITAL LETTER A (U+0041)

鷗 CJK_UNIFIED_IDEOGRAPHS (U+9DD7)

Œ LATIN SMALL LIGATURE OE (U+0153)

é LATIN SMALL LETTER E WITH ACUTE (U+00E9)

Ｂ FULLWIDTH LATIN CAPITAL LETTER B (U+FF22)

逍 CJK_UNIFIED_IDEOGRAPHS (U+900D)

Ü LATIN SMALL LETTER U WITH DIAERESIS (U+00FC)

ß LATIN SMALL LETTER SHARP S (U+00DF)

ª FEMININE ORDINAL INDICATOR (U+00AA)

ą LATIN SMALL LETTER A WITH OGONEK (U+0105)

ñ LATIN SMALL LETTER N WITH TILDE (U+00F1)

丂 CJK_UNIFIED_IDEOGRAPHS (U+4E02)

㐀 CJK Ideograph Extension A, First (U+3400)

𠀀 CJK Ideograph Extension B, First (U+20000)

表ポあA鷗ŒéＢ逍Üßªąñ丂㐀𠀀

Changing length when lowercased

Characters which increase in length (2 to 3 bytes) when lowercased

Credit: https://twitter.com/jifa/status/625776454479970304

Ⱥ Ⱦ

Japanese Emoticons

Strings which consists of Japanese-style emoticons which are popular on the web

ヽ༼ຈل͜ຈ༽ﾉヽ༼ຈل͜ຈ༽ﾉ (｡◕ ∀ ◕｡) ｀ｨ(´∀｀∩ _ﾛ(,,) ・(￣∀￣)・:: ﾟ･✿ヾ╲(｡◕‿◕｡)╱✿･ﾟ ,。・::・゜’( ☻ ω ☻ )。・::・゜’ (╯°□°）╯︵ ┻━┻) (ﾉಥ益ಥ）ﾉ ┻━┻ ┬─┬ノ( º ºノ) ( ͡° ͜ʖ ͡°) ¯_(ツ)/¯

Emoji

Strings which contain Emoji; should be the same behavior as two-byte characters, but not always

😍 👩🏽 👨‍🦰 👨🏿‍🦰 👨‍🦱 👨🏿‍🦱 🦹🏿‍♂️ 👾 🙇 💁 🙅 🙆 🙋 🙎 🙍 🐵 🙈 🙉 🙊 ❤️ 💔 💌 💕 💞 💓 💗 💖 💘 💝 💟 💜 💛 💚 💙 ✋🏿 💪🏿 👐🏿 🙌🏿 👏🏿 🙏🏿 👨‍👩‍👦 👨‍👩‍👧‍👦 👨‍👨‍👦 👩‍👩‍👧 👨‍👦 👨‍👧‍👦 👩‍👦 👩‍👧‍👦 🚾 🆒 🆓 🆕 🆖 🆗 🆙 🏧 0️⃣ 1️⃣ 2️⃣ 3️⃣ 4️⃣ 5️⃣ 6️⃣ 7️⃣ 8️⃣ 9️⃣ 🔟

Regional Indicator Symbols

Regional Indicator Symbols can be displayed differently across

fonts, and have a number of special behaviors

🇺🇸🇷🇺🇸 🇦🇫🇦🇲🇸 🇺🇸🇷🇺🇸🇦🇫🇦🇲 🇺🇸🇷🇺🇸🇦

Unicode Numbers

Strings which contain unicode numbers; if the code is localized, it should see the input as numeric

１２３ ١٢٣

Right-To-Left Strings

Strings which contain text that should be rendered RTL if possible (e.g. Arabic, Hebrew)

ثم نفس سقطت وبالتحديد،, جزيرتي باستخدام أن دنو. إذ هنا؟ الستار وتنصيب كان. أهّل ايطاليا، بريطانيا-فرنسا قد أخذ. سليمان، إتفاقية بين ما, يذكر الحدود أي بعد, معاملة بولندا، الإطلاق عل إيو. בְּרֵאשִׁית, בָּרָא אֱלֹהִים, אֵת הַשָּׁמַיִם, וְאֵת הָאָרֶץ הָיְתָהtestالصفحات التّحول ﷽ ﷺ مُنَاقَشَةُ سُبُلِ اِسْتِخْدَامِ اللُّغَةِ فِي النُّظُمِ الْقَائِمَةِ وَفِيم يَخُصَّ التَّطْبِيقَاتُ الْحاسُوبِيَّةُ، الكل في المجمو عة (5)

Ogham Text

The only unicode alphabet to use a space which isn't empty but should still act like a space.

᚛ᚄᚓᚐᚋᚒᚄ ᚑᚄᚂᚑᚏᚅ᚜ ᚛                 ᚜

Trick Unicode

Strings which contain unicode with unusual properties (e.g. Right-to-left override) (c.f. http://www.unicode.org/charts/PDF/U2000.pdf)

‪‪test‪ ‫test‫  test  test⁠test‫ ⁦test⁧

Zalgo Text

Strings which contain "corrupted" text. The corruption will not appear in non-HTML text, however. (via http://www.eeemo.net)

Ṱ̺̺̕o͞ ̷i̲̬͇̪͙n̝̗͕v̟̜̘̦͟o̶̙̰̠kè͚̮̺̪̹̱̤ ̖t̝͕̳̣̻̪͞h̼͓̲̦̳̘̲e͇̣̰̦̬͎ ̢̼̻̱̘h͚͎͙̜̣̲ͅi̦̲̣̰̤v̻͍e̺̭̳̪̰-m̢iͅn̖̺̞̲̯̰d̵̼̟͙̩̼̘̳ ̞̥̱̳̭r̛̗̘e͙p͠r̼̞̻̭̗e̺̠̣͟s̘͇̳͍̝͉e͉̥̯̞̲͚̬͜ǹ̬͎͎̟̖͇̤t͍̬̤͓̼̭͘ͅi̪̱n͠g̴͉ ͏͉ͅc̬̟h͡a̫̻̯͘o̫̟̖͍̙̝͉s̗̦̲.̨̹͈̣ ̡͓̞ͅI̗̘̦͝n͇͇͙v̮̫ok̲̫̙͈i̖͙̭̹̠̞n̡̻̮̣̺g̲͈͙̭͙̬͎ ̰t͔̦h̞̲e̢̤ ͍̬̲͖f̴̘͕̣è͖ẹ̥̩l͖͔͚i͓͚̦͠n͖͍̗͓̳̮g͍ ̨o͚̪͡f̘̣̬ ̖̘͖̟͙̮c҉͔̫͖͓͇͖ͅh̵̤̣͚͔á̗̼͕ͅo̼̣̥s̱͈̺̖̦̻͢.̛̖̞̠̫̰ ̗̺͖̹̯͓Ṯ̤͍̥͇͈h̲́e͏͓̼̗̙̼̣͔ ͇̜̱̠͓͍ͅN͕͠e̗̱z̘̝̜̺͙p̤̺̹͍̯͚e̠̻̠͜r̨̤͍̺̖͔̖̖d̠̟̭̬̝͟i̦͖̩͓͔̤a̠̗̬͉̙n͚͜ ̻̞̰͚ͅh̵͉i̳̞v̢͇ḙ͎͟-҉̭̩̼͔m̤̭̫i͕͇̝̦n̗͙ḍ̟ ̯̲͕͞ǫ̟̯̰̲͙̻̝f ̪̰̰̗̖̭̘͘c̦͍̲̞͍̩̙ḥ͚a̮͎̟̙͜ơ̩̹͎s̤.̝̝ ҉Z̡̖̜͖̰̣͉̜a͖̰͙̬͡l̲̫̳͍̩g̡̟̼̱͚̞̬ͅo̗͜.̟ ̦H̬̤̗̤͝e͜ ̜̥̝̻͍̟́w̕h̖̯͓o̝͙̖͎̱̮ ҉̺̙̞̟͈W̷̼̭a̺̪͍į͈͕̭͙̯̜t̶̼̮s̘͙͖̕ ̠̫̠B̻͍͙͉̳ͅe̵h̵̬͇̫͙i̹͓̳̳̮͎̫̕n͟d̴̪̜̖ ̰͉̩͇͙̲͞ͅT͖̼͓̪͢h͏͓̮̻e̬̝̟ͅ ̤̹̝W͙̞̝͔͇͝ͅa͏͓͔̹̼̣l̴͔̰̤̟͔ḽ̫.͕ Z̮̞̠͙͔ͅḀ̗̞͈̻̗Ḷ͙͎̯̹̞͓G̻O̭̗̮

Unicode Upsidedown

Strings which contain unicode with an "upsidedown" effect (via http://www.upsidedowntext.com)

˙ɐnbᴉlɐ ɐuƃɐɯ ǝɹolop ʇǝ ǝɹoqɐl ʇn ʇunpᴉpᴉɔuᴉ ɹodɯǝʇ poɯsnᴉǝ op pǝs 'ʇᴉlǝ ƃuᴉɔsᴉdᴉpɐ ɹnʇǝʇɔǝsuoɔ 'ʇǝɯɐ ʇᴉs ɹolop ɯnsdᴉ ɯǝɹo˥ 00˙Ɩ$-

Unicode font

Strings which contain bold/italic/etc. versions of normal characters

Ｔｈｅｑｕｉｃｋｂｒｏｗｎｆｏｘｊｕｍｐｓｏｖｅｒｔｈｅｌａｚｙｄｏｇ 𝐓𝐡𝐞 𝐪𝐮𝐢𝐜𝐤 𝐛𝐫𝐨𝐰𝐧 𝐟𝐨𝐱 𝐣𝐮𝐦𝐩𝐬 𝐨𝐯𝐞𝐫 𝐭𝐡𝐞 𝐥𝐚𝐳𝐲 𝐝𝐨𝐠 𝕿𝖍𝖊 𝖖𝖚𝖎𝖈𝖐 𝖇𝖗𝖔𝖜𝖓 𝖋𝖔𝖝 𝖏𝖚𝖒𝖕𝖘 𝖔𝖛𝖊𝖗 𝖙𝖍𝖊 𝖑𝖆𝖟𝖞 𝖉𝖔𝖌 𝑻𝒉𝒆 𝒒𝒖𝒊𝒄𝒌 𝒃𝒓𝒐𝒘𝒏 𝒇𝒐𝒙 𝒋𝒖𝒎𝒑𝒔 𝒐𝒗𝒆𝒓 𝒕𝒉𝒆 𝒍𝒂𝒛𝒚 𝒅𝒐𝒈 𝓣𝓱𝓮 𝓺𝓾𝓲𝓬𝓴 𝓫𝓻𝓸𝔀𝓷 𝓯𝓸𝔁 𝓳𝓾𝓶𝓹𝓼 𝓸𝓿𝓮𝓻 𝓽𝓱𝓮 𝓵𝓪𝔃𝔂 𝓭𝓸𝓰 𝕋𝕙𝕖 𝕢𝕦𝕚𝕔𝕜 𝕓𝕣𝕠𝕨𝕟 𝕗𝕠𝕩 𝕛𝕦𝕞𝕡𝕤 𝕠𝕧𝕖𝕣 𝕥𝕙𝕖 𝕝𝕒𝕫𝕪 𝕕𝕠𝕘 𝚃𝚑𝚎 𝚚𝚞𝚒𝚌𝚔 𝚋𝚛𝚘𝚠𝚗 𝚏𝚘𝚡 𝚓𝚞𝚖𝚙𝚜 𝚘𝚟𝚎𝚛 𝚝𝚑𝚎 𝚕𝚊𝚣𝚢 𝚍𝚘𝚐 ⒯⒣⒠ ⒬⒰⒤⒞⒦ ⒝⒭⒪⒲⒩ ⒡⒪⒳ ⒥⒰⒨⒫⒮ ⒪⒱⒠⒭ ⒯⒣⒠ ⒧⒜⒵⒴ ⒟⒪⒢

XXE Injection (XML)

String which can reveal system files when parsed by a badly configured XML parser

]>&xxe;

Unwanted Interpolation

Strings which can be accidentally expanded into different strings if evaluated in the wrong context, e.g. used as a printf format string or via Perl or shell eval. Might expose sensitive data from the program doing the interpolation, or might just represent the wrong string.

$HOME $ENV{'HOME'} %d %s%s%s%s%s {0} %.s %@ %n File:///

File Inclusion

Strings which can cause user to pull in files that should not be a part of a web server

../../../../../../../../../../../etc/passwd%00 ../../../../../../../../../../../etc/hosts

Known CVEs and Vulnerabilities

Strings that test for known vulnerabilities

() { 0; }; touch /tmp/blns.shellshock1.fail; () { ; } >[$($())] { touch /tmp/blns.shellshock2.fail; } <<< %s(un='%s') = %u +++ATH0

MSDOS/Windows Special Filenames

Strings which are reserved characters in MSDOS/Windows

CON PRN AUX CLOCK$ NUL A: ZZ: COM1 LPT1 LPT2 LPT3 COM2 COM3 COM4

IRC specific strings

Strings that may occur on IRC clients that make security products freak out

DCC SEND STARTKEYLOGGER 0 0 0

Scunthorpe Problem

Innocuous strings which may be blocked by profanity filters (https://en.wikipedia.org/wiki/Scunthorpe_problem)

Scunthorpe General Hospital Penistone Community Church Lightwater Country Park Jimmy Clitheroe Horniman Museum shitake mushrooms RomansInSussex.co.uk http://www.cum.qc.ca/ Craig Cockburn, Software Specialist Linda Callahan Dr. Herman I. Libshitz magna cum laude Super Bowl XXX medieval erection of parapets evaluate mocha expression Arsenal canal classic Tyson Gay Dick Van Dyke basement

Human injection

Strings which may cause human to reinterpret worldview

If you're reading this, you've been in a coma for almost 20 years now. We're trying a new technique. We don't know where this message will end up in your dream, but we hope it works. Please wake up, we miss you.

Terminal escape codes

Strings which punish the fools who use cat/type on this file

Roses are [0;31mred[0m, violets are [0;34mblue. Hope you enjoy terminal hue But now...[20Cfor my greatest trick...[8m The quick brown fox... [Beeeep]

iOS Vulnerabilities

Strings which crashed iMessage in various versions of iOS

Powerلُلُصّبُلُلصّبُررً ॣ ॣh ॣ ॣ冗 🏳0🌈️ జ్ఞ‌ా

Persian special characters

This is a four characters string which includes Persian special characters (گچپژ)