You might also like
Base64
Encode and decode Base64 text online free. Fast and secure Base64 encoder/decoder that runs entirely in your browser. No server upload required.
JSON Formatter
Format, indent, and minify JSON data online free. Validate JSON structure with real-time syntax highlighting. Perfect for developers working with APIs.
Image to PDF
Convert multiple images to PDF online free. Merge JPG, PNG images into a single PDF. Supports paste from clipboard. All client-side processing.
QR / Barcode
Generate QR codes, barcodes (Code 128, EAN 13, Code 39), and Data Matrix codes online free. No signup, no server upload. Download as PNG or SVG.
FAQ
g (global), i (case-insensitive), m (multiline).
Yes. Matches are highlighted directly in the text.
About this tool
This Regex tester is useful for developers debugging regular expressions.