Regular Expressions 101

Pro

^start of line

Positive Lookahead(?=.*[a-záéíóúñ])

.*any character (except for line terminators), repeated any number of times

Character Class[a-záéíóúñ]

a-zone character from a (97₁₀) to z (122₁₀) (case sensitive)

áthe literal á (225₁₀ / 341₈ / E1₁₆) (case sensitive)

éthe literal é (233₁₀ / 351₈ / E9₁₆) (case sensitive)

íthe literal í (237₁₀ / 355₈ / ED₁₆) (case sensitive)

óthe literal ó (243₁₀ / 363₈ / F3₁₆) (case sensitive)

úthe literal ú (250₁₀ / 372₈ / FA₁₆) (case sensitive)

ñthe literal ñ (241₁₀ / 361₈ / F1₁₆) (case sensitive)

Positive Lookahead(?=.*[A-ZÁÉÍÓÚÑ])

.*any character (except for line terminators), repeated any number of times

Character Class[A-ZÁÉÍÓÚÑ]

A-Zone character from A (65₁₀) to Z (90₁₀) (case sensitive)

Áthe literal Á (193₁₀ / 301₈ / C1₁₆) (case sensitive)

Éthe literal É (201₁₀ / 311₈ / C9₁₆) (case sensitive)

Íthe literal Í (205₁₀ / 315₈ / CD₁₆) (case sensitive)

Óthe literal Ó (211₁₀ / 323₈ / D3₁₆) (case sensitive)

Úthe literal Ú (218₁₀ / 332₈ / DA₁₆) (case sensitive)

Ñthe literal Ñ (209₁₀ / 321₈ / D1₁₆) (case sensitive)

Positive Lookahead(?=.*[0-9])

.*any character (except for line terminators), repeated any number of times

Character Class[0-9]

0-9one character from 0 (48₁₀) to 9 (57₁₀)

\S{8,16}any non-whitespace character, repeated between 8 and 16 times

$end of line

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Detailed match information will be displayed here automatically.

26 tokens

Regular Expression

^(?=.*[a-záéíóúñ])(?=.*[A-ZÁÉÍÓÚÑ])(?=.*[0-9])\S{8,16}$

New

1234567890123456       # Para medir los passwords de abajo

MiPasswordBueno1
EstePasswordEsMuyLargo1234
Est4PasswordOK
C0n!Símb0loS
EsC0rt0
sinmayusculas1
SINMINUCULAS1
SiNnUmErOs
F0J1mDmm
·$"$·"Aa0