---
title: Regex Tester
description: Test regex patterns against input text.
---

# Regex Tester

Test a regular expression pattern against input text and see matches.

## Commands

```bash
devv pipe exec "regex-tester pattern=\"\\d+\" flags=g" "there are 42 apples and 7 oranges"
```

## Examples

```bash
# Find all numbers
devv pipe exec "regex-tester pattern=\"\\d+\" flags=g" "order 123 has 5 items"

# Find email addresses
devv pipe exec "regex-tester pattern=\"[\\w.]+@[\\w.]+\" flags=g" "contact josh@example.com or hi@devv.tools"

# Case-insensitive match
devv pipe exec "regex-tester pattern=\"hello\" flags=gi" "Hello HELLO hello"
```

## Pipeline Usage

| Pipeline ID | Description |
|-------------|-------------|
| `regex-tester` | Test regex against input |

### Options in pipelines

```
regex-tester pattern="\\d+" flags=g
regex-tester pattern="[a-z]+" flags=gi
```

### Behavior

**Passthrough** — the original input is forwarded to the next step. Match results are displayed but don't replace the data flowing through.