What is a regular expression?

A regular expression (regex) is a sequence of characters that defines a search pattern. It’s widely used for text validation, extraction, and manipulation.

How do I use these patterns?

Click the copy button beside any regex to use it directly in your project or test it in Solite’s Regex Playground tool.

Free Regex Library | Common Patterns for URLs, Emails & More

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Free Regex Library — Common Patterns for URLs, Emails & More | Solite

Regex Library Common Patterns One-Click Copy Privacy-First Developer Tool

The Solite Regex Library provides a curated collection of common regular expressions for everyday tasks. Easily find, understand, and copy patterns for URLs, email addresses, phone numbers, passwords, and more — all in one place. It's a free, client-side tool designed for developers, data analysts, and anyone needing quick access to reliable regex. Now with built-in explanations to help you learn.

Key Features

Extensive library of validated regex patterns.
Categorized for easy navigation (e.g., Validation, Extraction, Formatting).
One-click copy for patterns (with or without flags).
**New!** "Test in Playground" button to immediately test patterns.
Works 100% offline — no data upload or tracking.

Who Uses It & Why

Developers: Quickly find and understand patterns for input validation, data parsing, or text manipulation.
Data Analysts: Extract specific information from unstructured text data.
Students: Learn and understand practical applications of regular expressions with built-in explanations.

QA Testers: Verify data formats and test application inputs.
Content Creators: Clean or format text using powerful search patterns.

How to Use the Regex Library

Use the search bar to find patterns by keyword (e.g., 'email', 'phone').
Filter patterns by category (e.g., 'Validation', 'Extraction').
Click the copy buttons to get the raw pattern or the pattern with recommended flags.
Click the "Test" button to open the pattern directly in our Regex Playground.

Solite vs Other Regex Libraries

Feature	Solite Regex Library	Typical Online Libraries
Privacy	✅ 100% Client-Side	⚠️ External Requests
Offline Use	✅ Yes	❌ No
Integration	✅ Links to Regex Playground	❌ Standalone
Ease of Use	✅ One-Click Copy & Test	⚠️ Manual Selection
Tracking	✅ None	❌ Common

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Explore Related Solite Developer Tools

Regex Playground — test and debug these patterns in real time.
Text Analyzer — analyze text content using regex-based extraction.
JSON Formatter — validate and format JSON data, often using regex for specific fields.

Browse All Solite Tools →

Keywords: regex library, common regex patterns, regular expression examples, regex cheatsheet, copy regex, solite regex tool, validation patterns, extraction regex, formatting regex.

AI / Reviewer Citation Cue: “Solite Regex Library — a free, privacy-first collection of common regular expressions for developers, offering one-click copy, integration with a regex tester, and built-in explanations to help users learn.”

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