regex whitespace match checker
Enter your values below to compute instant, accurate, client-side results.
Whitespace Matches
0 whitespace character(s) matched
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How to Use the regex whitespace match checker
- Enter your input parameters into the specified field.
- The system evaluates results instantly as you type (no buttons or loading indicators).
- Click "Copy Result" to write the output directly to your clipboard.
Frequently Asked Questions & Guide
What does \s match in regex?
In regular expressions, the `\s` character class matches any whitespace character, including spaces, tabs, newlines, carriage returns, and form feeds.
How do I count all spaces in a string?
Using the regex pattern `/\s/g` captures all whitespace occurrences globally throughout the string so they can be easily counted.
Does \s include non-breaking spaces?
Yes, in most modern regex engines (including JavaScript's), `\s` matches non-breaking spaces (` ` or `\u00A0`).