HTML | <input> pattern Attribute Last Updated : 12 Aug, 2022 Comments Improve Suggest changes Like Article Like Report The HTML <input> pattern attribute is used to specify the regular expression on which the input elements value is checked against. This attribute works with the following input types: text, password, date, search, email, etc. Use the Global title attribute to describe the pattern for helping the user. Syntax: <input pattern = "regular_exp"> Example: This example illustrates the use of pattern attribute in <input> element. html <!DOCTYPE html> <html> <head> <title> HTML input pattern attribute </title> <style> body { text-align:center; } h1 { color:green; } </style> </head> <body> <h1>GeeksforGeeks</h1> <h2>HTML <input>pattern attribute</h2> <form action="#"> Password: <input type="text" name="Password" pattern="[A-Za-z]{3}" title="Three letter Password"> <input type="submit"> </form> </body> </html> Output: Supported Browsers: The browser supported by HTML <input> pattern attribute are listed below: Google Chrome 4.0Edge 12.0Internet Explorer 10.0Firefox 4.0Safari 5.0Opera 12.1 Comment More infoAdvertise with us M manaschhabra2 Follow Improve Article Tags : Web Technologies HTML HTML-Attributes Explore HTML Tutorial 11 min read BasicsHTML Introduction 5 min read HTML Editors 5 min read HTML Basics 7 min read HTML Structure & ElementsHTML Elements 5 min read HTML Attributes 8 min read HTML Headings 4 min read HTML Paragraphs 5 min read HTML Text Formatting 4 min read HTML Block and Inline Elements 3 min read HTML Charsets 4 min read HTML ListHTML Lists 5 min read HTML Ordered Lists 5 min read HTML Unordered Lists 4 min read HTML Description Lists 3 min read HTML Visuals & MediaHTML Colors 11 min read HTML Links Hyperlinks 3 min read HTML Images 7 min read HTML Favicon 4 min read HTML Video 4 min read HTML Layout & DesignHTML Tables 10 min read HTML Iframes 4 min read HTML Layout 4 min read HTML File Paths 3 min read HTML Projects& Advanced TopicsHTML Forms 5 min read HTML5 Semantics 6 min read HTML URL Encoding 4 min read HTML Responsive Web Design 11 min read Top 10 Projects For Beginners To Practice HTML and CSS Skills 8 min read HTML Tutorial ReferencesHTML Tags - A to Z List 15+ min read HTML Attributes Complete Reference 8 min read HTML Global Attributes 5 min read HTML5 Complete Reference 8 min read HTML5 MathML Complete Reference 3 min read HTML DOM Complete Reference 15+ min read HTML DOM Audio/Video Complete Reference 2 min read SVG Element Complete Reference 5 min read SVG Attribute Complete Reference 8 min read SVG Property Complete Reference 7 min read HTML Canvas Complete Reference 4 min read Like