Regex tester
Test regular expressions with real-time highlighting.
Regular expression
Test text
Matches
0 matches
Sponsored
Features
- Enter a regex and test text to see all matches
- Supports g, i, m and other JavaScript flags
- Displays match indexes and capture groups
About Regex tester
Test JavaScript regular expressions online with real-time matches and capture groups. This tool runs entirely in your browser. No data is uploaded to the server, helping protect your privacy. Everything works instantly with no software or plugin required.
Sponsored
More tools in Developer tools
JSON Formatter
Online JSON formatting, compression, validation and escaping with automatic error positioning.
Timestamp Converter
Convert between Unix timestamps and date-time, supporting seconds/milliseconds.
Base64 Encoder/Decoder
Base64 encoding and decoding, supports Chinese UTF-8.
URL encoder/decoder
Encode and decode URLs and special characters.
MD5/SHA hash
Generate MD5, SHA1, SHA256, and SHA512 hashes locally.
Base converter
Convert between binary, octal, decimal, hex, and bases 2-36.