Regex \s — Match Whitespace

\s matches a single whitespace character (space, tab, newline, etc.). In JS it includes [\t\n\v\f\r ] and other Unicode whitespace. Example: /\s/ on "a b\tc" matches the space and the tab.

Key facts

Frequently asked questions

What does \s match?

Any whitespace: space, tab, newline, and more.

What is the opposite of \s?

\S matches any non-whitespace character.

Related pages

• HTTP 200 OK
• HTTP 301 Moved Permanently
• HTTP 401 Unauthorized
• HTTP 403 Forbidden
• HTTP 404 Not Found
• HTTP 429 Too Many Requests
• HTTP 500 Internal Server Error
• HTTP 502 Bad Gateway

Regex \s — Whitespace is part of DevRef Hub on GOAT Lab — a free reference you can use without signing up, and it works offline. Open the tool above for any custom value.

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