🔍Regex Recipes

Extract Hashtags

Extract social media hashtags with Unicode support for international characters.

Pattern

#[\w\u00C0-\u017F]+

Explanation

Matches # followed by word characters and common accented characters. Add more Unicode ranges for other scripts.

Examples

Simple

Input

#javascript

Output

✓ Match

With numbers

Input

#web3

Output

✓ Match

Multiple

Input

Love #coding and #developer

Output

Matches both

With accents

Input

#café

Output

✓ Match (with Unicode range)

Not hashtag

Input

cost is #50

Output

✓ Match (but may be false positive)

Code Examples

JavaScript

// Basic hashtag extraction
const text = 'Loving #JavaScript and #WebDev! #coding';
const hashtags = text.match(/#[\w\u00C0-\u017F]+/g)
  .map(tag => tag.substring(1)); // Remove #
// Result: ['JavaScript', 'WebDev', 'coding']

// More Unicode support (emoji, CJK, etc.)
const unicodeHashtags = /#[\p{L}\p{N}_]+/gu;
const tags = text.match(unicodeHashtags);

Try it Now

Open in Regex Tester

💡 Tips

Use \p{L} in modern regex for full Unicode support
Platform rules: Twitter allows letters/numbers, no spaces
Consider max length (often 100-140 chars)
Normalize to lowercase for comparison

⚠️ Common Pitfalls

May match # in non-hashtag contexts
Different platforms have different rules
Unicode support varies by regex engine
May need word boundaries for precise matching