Online regex find & replace, supports capture groups, multiline, global replace, real-time preview
Yes, completely free. No registration required, no usage limits. All processing happens locally in your browser.
All JavaScript regex features are supported, including capture groups ($1, $2...), named groups, lookaheads, character classes, quantifiers, and flags like g (global), i (case-insensitive), m (multiline), s (dotAll).
Capture group replacement lets you reference matched subgroups in the replacement string. For example, regex (\\w+)@(\\w+)\\.com with replacement $1 at $2 dot com transforms user@example.com to user at example dot com.
Yes. As you type the regex pattern and replacement string, the result area shows the replaced text in real-time with match count statistics.
Absolutely. All processing happens locally in your browser. Your text data is never uploaded to any server.
Regex Replace has no usage limits — it's free and unlimited. Since processing is done client-side, speed depends on your device. For very large files, we recommend processing in batches for the best experience.
No. Regex Replace uses client-side processing — everything runs in your browser. Your data never leaves your device, and the tool works even without an internet connection.
No. Regex Replace is a web-based tool — just open it in your browser and start using it. No downloads, plugins, or extensions required.
Yes, Regex Replace is completely free to use. No registration or login required — all features are available immediately.
Absolutely. All processing happens locally in your browser. No data is sent to any server, so there's zero risk of data leaks. Your information stays completely under your control.
Yes. Regex Replace is fully responsive and works on phones, tablets, and desktops. The interface adapts automatically to your screen size.