Markdown Italic

Matches Markdown italic text wrapped in *single asterisk* or _single underscore_.

✓ Markdown parsers✓ Blog editors✓ Documentation processors

Test String

3 matches

*italic text*
_also italic_
*multi-word italic*

(…)Group #1— Capturing group — captures matched text for reuse or extraction

\*\*— \* — escaped character '*'

||— | — alternation: matches expression on left OR right

__— '_' — literal character

(?!…)Negative lookahead (?!…)— Negative lookahead — asserts the following text does NOT match this pattern (zero-width)

\sspace— \s — whitespace (space, tab, newline…)

(…)Group #2— Capturing group — captures matched text for reuse or extraction

.+?.— . — matches any character except newline (unless 's' flag is set) — repeated one or more times (greedy) (lazy) · + — one or more times (greedy) (lazy)

(?<!…)Neg. lookbehind (?<!…)— Negative lookbehind — asserts what precedes does NOT match this pattern (zero-width)

\sspace— \s — whitespace (space, tab, newline…)

\1\1— \1 — escaped character '1'

Pattern: 26 charsInput: 47 chars

100% client-side · private

✓ Valid Examples

*italic text*
_also italic_
*multi-word italic*

✗ Invalid Examples

**bold**
* space before*
plain text