Hashtag Extractor
Extract all hashtag tokens without the # symbol, in order of appearance.
Description
Extract ASCII hashtag tokens in source order without their # prefix.
The hashtag extractor supports lightweight indexing and occurrence analysis while preserving duplicates, original case, and order.
When to use Hashtag Extractor
- Collect tags from a caption
- Prepare tags for frequency analysis
- Test simple hashtag parsing
How the calculation works
Every # followed by ASCII letters, digits, or underscores is matched. A lone hash is ignored and punctuation ends the token.
Interpreting the result
The result is an occurrence list, not a set: duplicates remain and `#Tag` differs from `#tag`. Normalize or deduplicate in a separate step when needed.
Important limitations
- The grammar may differ from a social platform's Unicode hashtag rules.
- The tool does not verify whether a tag exists externally.