Regex Visualizer
Visualize regex matches with highlighted text, match groups, and real-time analysis. Supports all JavaScript regex flags (g, i, m, s).
About the Regex Visualizer
Visualize regex matches with highlighted text, match groups, and real-time analysis. Supports all JavaScript regex flags (g, i, m, s).
Regex Visualizer is a free browser-based tool on QuickFnd. Visualize regex matches with highlighted text, match groups, and real-time analysis. Supports all JavaScript regex flags (g, i, m, s). No installation or account required — runs entirely in your browser on desktop and mobile.
- Type
- Tool
- Method
- live PCRE-compatible regex testing with capture groups
- Runs in
- Your browser — no account, no install
- Price
- Free
- Privacy
- Inputs stay on your device unless the tool says otherwise
Frequently asked questions
The Regex Visualizer highlights matches directly in your text with color-coded markers and shows match indices. The Regex Tester focuses on pattern testing and replacement.
Global (g), case-insensitive (i), multiline (m), and dotall (s). Toggle each flag independently.
Yes. Named capture groups are displayed for each match when your pattern includes (?<name>...) syntax.
The tool handles texts up to ~100KB comfortably. For very large texts, results may take a moment to render.
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