About Regex Tester
Write a JavaScript regular expression and instantly see matches highlighted in your test string, along with capture groups. Toggle flags like global, case-insensitive and multiline.
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Write a JavaScript regular expression and instantly see matches highlighted in your test string, along with capture groups. Toggle flags like global, case-insensitive and multiline.
Transform, analyze, extract and structure text — find/replace, trim, sort, count and more.
Compare two texts and highlight the differences line by line.
Format, validate and convert JSON, XML, SQL, HTML, CSS, JS and more — one developer workspace.
Paste text or load a sample
⌘V to paste