What is a Regular Expression?

A Regular Expression (Regex) is a sequence of characters that specifies a search pattern. They are used for finding, replacing, and validating strings.

Which Regex flavor is supported?

This tool uses the JavaScript (ECMAScript) regex engine, which is standard for web development and Node.js applications.

What do the flags do?

Flags modify the search behavior. "g" finds all matches (global), "i" ignores case, and "m" allows anchors like ^ and $ to match start/end of lines.

How do I match a digit?

Use the character class "\d" to match any digit from 0 to 9.

URL / Website Link Regex Pattern — Test & Copy

URL / Website Link Regex Pattern — Test & Copy Overview

The correct regular expression for url / website link. Match HTTP and HTTPS URLs including query strings. Test it live with examples in the browser.

Our Regex Tester is a powerful online utility for building, testing, and debugging JavaScript regular expressions. It provides real-time matching, syntax highlighting, and capture group analysis to help you master regex patterns. Whether you are validating emails, parsing logs, or extracting data, this tool offers immediate feedback on your patterns against test strings.

How to Use URL / Website Link Regex Pattern — Test & Copy

Enter your regex pattern (e.g., ^[a-z]+$) in the input field.
Add flags like "g" (global) or "i" (case-insensitive) as needed.
Type or paste your test string in the text area.
Instantly view highlighted matches and extracted capture groups.

Frequently Asked Questions

What is a Regular Expression?: A Regular Expression (Regex) is a sequence of characters that specifies a search pattern. They are used for finding, replacing, and validating strings.
Which Regex flavor is supported?: This tool uses the JavaScript (ECMAScript) regex engine, which is standard for web development and Node.js applications.
What do the flags do?: Flags modify the search behavior. "g" finds all matches (global), "i" ignores case, and "m" allows anchors like ^ and $ to match start/end of lines.
How do I match a digit?: Use the character class "\d" to match any digit from 0 to 9.

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