@kszongic/regex-test-cli

Test regex patterns from the command line — match, extract groups, replace. Zero dependencies.

Install

npm i -g @kszongic/regex-test-cli

Usage

# Simple match
regex-test "\d+" "abc 123 def"
# {"match":"123","index":4}

# All matches
regex-test "\d+" -a "abc 123 def 456"
# [{"match":"123","index":4},{"match":"456","index":12}]

# Capture groups
regex-test "(\w+)@(\w+)" "user@host"
# {"match":"user@host","index":0,"groups":["user","host"]}

# Case-insensitive
regex-test "hello" -f i "Hello World"

# Replace
regex-test "\d+" --replace X "abc 123 def 456"
# abc X def 456

# Stdin
echo "hello world" | regex-test "\w+" -a --stdin

Options

| Flag | Description | |------|-------------| | -f, --flags <flags> | Regex flags (g, i, m, s, u) | | -a, --all | Show all matches (implies g) | | -r, --replace <str> | Replace matches | | --stdin | Read from stdin | | -h, --help | Show help |

License

MIT © 2026 kszongic