How can I validate an email address using a regular expression?
Using a regular expression that recognizes email addresses could be useful in various situations: for example to scan for email addresses in a document, to validate user input, or as an integrity …
regex101: Email Validator
Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.
How to Validate Email Address using RegExp in JavaScript?
Sep 8, 2025 · In JavaScript, RegExp objects are used for pattern matching within strings, such as checking the format of email addresses. For email validation, we use RegExp to check if an email …
The Ultimate Email Validation Regex (2025 Edition)
Copy-paste a production-ready email validation regex. Includes test cases, language examples (JS, Python, PHP, Java), FAQs and best practices.
How to Find or Validate an Email Address - Regular-Expressions.info
Oct 29, 2025 · Use a regular expression to find potential matches or check if the input uses the proper syntax, and do the actual validation on the potential matches returned by the regular expression.
Email Address Regular Expression That 99.99% Works.
Feeling hardcore (or crazy, you decide)? Read the official RFC 5322, or you can check out this Email Validation Summary. Note there is no perfect email regex, hence the 99.99%. Start by entering a …
Regex Email Validation (Practical Patterns & Real Examples)
Learn the most practical regex patterns for email validation, from simple checks to stricter formats with multiple domain levels. Includes examples, common pitfalls, and copy-ready patterns for JavaScript, …
Email Validation Regex | RegEx Snippets
Ready-to-use email validation regular expression patterns. RFC 5322 compliant regex with implementations in JavaScript, Python, Rust, Go, and more.
Email Validation Regex in Multiple Programming Languages
Feb 8, 2025 · In this guide, we will explore email validation with Regex in different programming languages, focusing on optimized patterns that handle most common scenarios.
How to Validate Email Addresses with Regex
Nov 11, 2023 · Interactive, complete & step-by-step guide on how to validate email addresses with regex (regular expressions). Also contains code samples for the most commpon programming languages.