Utiloom
Developer Tools

Regex Pattern Library

Search common regex patterns for email, URLs, UUIDs, slugs, and dates, then copy them instantly.

Browse reusable regex patterns

Email

Example: hello@utiloom.com

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

URL

Example: https://utiloom.com/tools

https?:\/\/[\w.-]+(?:\.[\w.-]+)+(?:[/?#][^\s]*)?

HEX color

Example: #0f172a

^#?(?:[0-9a-fA-F]{3}){1,2}$

UUID

Example: 550e8400-e29b-41d4-a716-446655440000

^[0-9a-fA-F]{8}-[0-9a-fA-F]{4}-[1-8][0-9a-fA-F]{3}-[89abAB][0-9a-fA-F]{3}-[0-9a-fA-F]{12}$

Kebab case slug

Example: meeting-overlap-finder

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

ISO date

Example: 2026-03-09

^\d{4}-\d{2}-\d{2}$

About this tool

Use a curated pattern library when you need a starting regex quickly instead of retyping common validation expressions from scratch.

  • Includes common patterns for email, URL, UUID, slug, and date matching.
  • Searches by use case, pattern, or example value.
  • Lets you copy patterns instantly for reuse in forms, APIs, and scripts.

How to use Regex Library

Open the interactive panel above, enter your content, and review the output instantly. Utiloom keeps processing in the browser whenever possible so you can move faster without adding server complexity.

Why people use this tool

Search-friendly utility pages work well when they answer a focused job clearly. This page includes descriptive metadata, structured copy, and FAQs to support both visitors and search engines.

Frequently asked questions

Are these patterns ready to copy into code?

Yes. The patterns are shown in a copy-ready form so you can use them directly or adapt them further.

Is this meant to replace a full regex tester?

No. It complements a tester by giving you strong starting patterns to copy and refine.