Markdown Heading

Matches Markdown ATX-style headings — # through ###### followed by text. Captures both the level (number of #) and the heading text.

✓ Markdown parsers✓ Table of contents generators✓ Documentation tools

Test String

4 matches

# H1 Title
## Section Two
### Subsection
###### Smallest Heading

^^— ^ — start of string (or line in multiline mode)

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

#{1,6}#— '#' — literal character — repeated between 1 and 6 times · {1,6} — between 1 and 6 times

\s+space— \s — whitespace (space, tab, newline…) — repeated one or more times (greedy) · + — one or more times (greedy)

(…)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) · + — one or more times (greedy)

$$— $ — end of string (or line in multiline mode)

Pattern: 17 charsInput: 64 chars

100% client-side · private

✓ Valid Examples