---
title: "Regex Tester: Test regular expressions against sample text…"
canonical: "https://openvibe.tools/tool/regex"
updated: null
---

# Regex Tester: Test regular expressions against sample text…

HTML: [Regex Tester: Test regular expressions against sample text…](https://openvibe.tools/tool/regex)

# Regex Tester

Write a pattern, paste sample text, and watch matches highlight as you type. Capture groups are listed separately so you can confirm a pattern extracts what you expect before it reaches production.

- **Limits** No daily limit on the page
- **Where it runs** Runs in your browser; nothing is uploaded.
- **Cost** Free, with the limits above. No account needed.

 [Open Regex Tester](https://regex.openvibe.tools/) 

## Where to find it

Every address below opens the same tool. The first address is the one to bookmark and share.

- [regex.openvibe.tools](https://regex.openvibe.tools/)Primary

## People also call this

**What it's for:** Test regular expressions against sample text with live match highlighting and capture groups. Debug patterns before shipping them. Instant.

**What trips people up:** **Why does my pattern match nothing?** Common causes are an unescaped special character, a missing global flag when you expect several matches, or anchors that assume single-line input.

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- regular expression tester
- regex online
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- regex debugger

## Use it from code

Regex Tester runs on its page only and has no API. [The Tools API](/developers) covers the tools you can call from code.

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