正規表現テスター

テキストに対して正規表現をリアルタイムでテスト。すべてのマッチ、グループ、位置を表示。

regex testerregular expression testerregex onlinetest regexregex matcher

Drag & drop a file here, or click to browse

Options

Pattern

Flags:

i — case insensitive

m — multiline

s — dotAll

Input

Output

Privacy: This tool runs entirely in your browser. No data is sent to our servers. We don't store, share, or have access to any of the information you process here.

Examples

Example 1

The quick brown fox jumps over the lazy dog

Click "Example 1" above to load

Frequently Asked Questions

Q: Which regex flavor is used?

A: JavaScript (ECMAScript) regex syntax.

Q: What flags are supported?

A: g (global), i (case-insensitive), m (multiline), s (dotAll).

Q: Does it show capture groups?

A: Yes, all capture groups are listed for each match.

Related Tools

HTML エンティティエンコーダー

特殊文字を HTML エンティティにエンコード、またはデコードします。

URL Encode/Decode

URL encode (percent-encode) or decode strings for safe web transmission.

Extract Emails from Text

Extract all email addresses from any text or document.

Privacy & Security

This tool runs entirely in your browser. No data is sent to our servers. We don't store, share, or have access to any of the information you process here.