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Regex pattern library

Tested starting points for common tasks. Open a page for explanations and samples, or regenerate in Forge from plain language.

• Email address regexWorking email address regex with live test samples. Generate email patterns from plain English with Forge Regex.
• URL / link regexRegex to match http/https URLs. Test live and generate variants from plain language.
• IPv4 address regexRegex for IPv4 addresses (0–255 octets). Generate and test with Forge Regex.
• ISO date (YYYY-MM-DD) regexMatch ISO-8601 calendar dates YYYY-MM-DD with a tested regular expression.
• US phone number regexRegular expression for US phone numbers with optional +1 and separators.
• HTML a[href] extractor regexRegex to extract href values from anchor tags, supporting single and double quotes.
• Strip HTML tags regexRemove HTML tags with a simple regex—useful for rough article cleanup after crawling.
• China mobile number regexRegex for mainland China mobile numbers (11 digits, optional +86).
• China ID card regexRegex for 18-digit mainland China resident ID numbers.
• HTML img src / data-src regexPull image URLs from HTML img tags including lazy-loaded data-src.
• HTML meta description regexRegex to pull meta name=description content from HTML. Test live and refine in Forge.
• Next-page / pagination link regexMatch pagination next links (rel=next or common next text) for crawlers.