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Regular Expressions: A Practical Guide for Beginners

Regular Expressions: A Practical Guide for Beginners en ligne gratuit. Traite les données instantanément dans votre navigateur. Sans téléversement, sans inscription, totalement privé.

Local processing

Interactive Regex Tutorial

The simplest regex matches literal characters. /cat/ matches the substring "cat" anywhere in the input. Regex is case-sensitive by default; add the i flag to ignore case.

Regex Tester

//

2 matches

I have 42 apples and 7 oranges.
Match details
#MatchIndexGroups
0427—
1721—

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📚 Learn Read "CSV vs TSV: Which Delimiter Format Should You Use?" Compare CSV and TSV across delimiter choice, escaping, compatibility, and use cases — and learn when to pick each for tabular data. 📚 Learn Read "How to Convert Markdown to HTML Step by Step" Step-by-step guide to converting Markdown text to HTML using a free browser-based tool. Learn syntax, extensions, and common use cases. 📚 Learn Read "How to Convert Unix Timestamps to Human-Readable Dates (Step-by-Step)" Step-by-step guide to converting Unix timestamps (epoch) to human-readable dates and back using a free browser-based tool. Learn seconds vs milliseconds. 🔧 Explore Try "CSS Formatter & Beautifier" Free online css formatter & beautifier. Process data instantly in your browser. No upload, no signup, fully private. 🔧 Explore Try "Broken Link Checker" This tool requires external data or server-side processing. Coming soon. 🔧 Explore Try "Age on Other Planets Calculator" Free online age on other planets calculator. Process data instantly in your browser. No upload, no signup, fully private.