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Regex Tester & Explainer
Test regular expressions live with match highlighting — get a plain-English explanation of each token
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Matches: —
Expression breakdown
Enter a regex above to see the explanation...
Common patterns for RPA & automation
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Using Regex in RPA & UiPath
Regular expressions are essential in RPA development for extracting structured data from unstructured text —
such as invoice numbers, email addresses, dates, and amounts from PDF documents or web pages.
In UiPath, regex is used with the Matches,
IsMatch, and
Replace activities in the
System.Text.RegularExpressions namespace.
Common regex use cases in automation
- Extracting invoice numbers, order IDs, and reference codes from documents
- Validating and parsing email addresses and phone numbers
- Parsing dates in various formats (DD/MM/YYYY, YYYY-MM-DD, etc.)
- Extracting amounts and currencies from financial documents
- Cleaning and normalizing data before database insertion