Regex Snippets

Search and copy common regex patterns — email, URL, date, and more.

/^[^\s@]+@[^\s@]+\.[^\s@]+$/

예: user@example.com

URL (http/https)

/^https?:\/\/[^\s/$.?#].[^\s]*$/i

예: https://tinkerd.dev/tools

IPv4 address

/^(?:(?:25[0-5]|2[0-4]\d|1?\d?\d)\.){3}(?:25[0-5]|2[0-4]\d|1?\d?\d)$/

예: 192.168.0.1

UUID v4

/^[0-9a-f]{8}-[0-9a-f]{4}-4[0-9a-f]{3}-[89ab][0-9a-f]{3}-[0-9a-f]{12}$/i

예: 3f8b2c1a-9d4e-4b6a-8c2d-1e5f7a9b0c3d

Hex color

/^#(?:[0-9a-f]{3}|[0-9a-f]{6})$/i

예: #5b9dff

URL slug

/^[a-z0-9]+(?:-[a-z0-9]+)*$/

예: my-blog-post-1

Date (YYYY-MM-DD)

/^\d{4}-(?:0[1-9]|1[0-2])-(?:0[1-9]|[12]\d|3[01])$/

예: 2024-07-01

Time (HH:mm, 24h)

/^(?:[01]\d|2[0-3]):[0-5]\d$/

예: 09:30

Phone (international, E.164)

/^\+?[1-9]\d{1,14}$/

예: +821012345678

Phone (Korea mobile)

/^01[016789]-?\d{3,4}-?\d{4}$/

예: 010-1234-5678

Strong password (8+, upper/lower/digit/special)

/^(?=.*[a-z])(?=.*[A-Z])(?=.*\d)(?=.*[^\w\s]).{8,}$/

예: Abc!2345

Hashtag

/#[\p{L}0-9_]+/gu

예: #개발 #devtools

@Mention

/@[a-z0-9_]{1,30}/gi

예: @tinkerd

Credit card number (loose)

/^(?:\d[ -]?){13,19}$/

예: 4242 4242 4242 4242

Semantic version

/^(0|[1-9]\d*)\.(0|[1-9]\d*)\.(0|[1-9]\d*)(?:-[0-9A-Za-z-.]+)?(?:\+[0-9A-Za-z-.]+)?$/

예: 1.4.2-beta.1

Empty/whitespace-only lines

/^\s*$/gm

예: (빈 줄 매칭)