検索と置換

無料の検索・置換ツール。プレーンテキストまたは正規表現で一括検索/置換。大文字・小文字、単語全体、グローバル一致オプション。ブラウザで動作。

Runs in your browserUpdated Apr 26, 2026

Find

Replace with

Regex Case sensitive Replace allMatches: 0

よくある質問

›Does it support regex?

Yes — toggle 'use regex' to enable JavaScript regex syntax in the find pattern. Use $1, $2, etc. for capture-group backreferences.

›Is it case-sensitive?

Toggle as needed. Default depends on whether 'use regex' is on.

›Can I do whole-word matching?

Yes — enable 'whole word' to match only complete words (uses regex \b internally).

›Is my text uploaded?

No — runs entirely in your browser.

›Is the tool free?

Yes — fully free, no signup.