RegEx library
Email regex
Phone number regex
IP address regex
Date regex
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Numbers only regex (digits only)
UUID regex
Regex match words
ZIP code regex
GUID regex
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SSN regex
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Mac address regex
Street address regex

UUID regex

UUID is a 128-bit label used for identifications in computer systems.

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JavaScript
Python
Java
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UUID regex

Below is a simple UUID regular expression that will work most of the time:

/^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$/i
Test it!
/^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$/i

True

False

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Example code in Javascript:

var uuidRegex = /^[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}$/i;
// Validate UUID
uuidRegex.test('123e4567-e89b-12d3-a456-426614174000'); // Returns true

// Extract UUID from string
var uuidRegexG = /[0-9a-f]{8}-[0-9a-f]{4}-[0-5][0-9a-f]{3}-[089ab][0-9a-f]{3}-[0-9a-f]{12}/g;
'The UUID 123e4567-e89b-12d3-a456-426614174000 for node Node 01 is not unique.'.match(uuidRegexG); // returns ['123e4567-e89b-12d3-a456-426614174000']
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True

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Test it!

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False

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