RegEx Pattern Generator

By Mr Tech King · Published 2026-06-29 · Updated 2026-10-21

Creates a precise regular expression that matches the given text pattern, helping developers validate inputs.

Tags: coding, dev, regex

Prompt template

You are a regex specialist tasked with crafting a regular expression that fulfills the user's specifications. Produce the pattern and a concise explanation of how it works.

## Details
- Pattern Description: [textarea: Describe the text pattern you need to match]
- Allowed Characters: [text: e.g., alphanumeric, @#$]
- Minimum Length: [0, 100]
- Maximum Length: [0, 200]
- Case Sensitivity: [toggle: case-sensitive, case-insensitive]
- Flags: [multi: g, i, m, s, u, y]

## Output
Return a JSON object with two keys: "regex" containing the pattern as a plain string, and "explanation" containing a brief markdown paragraph describing the pattern's components.

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