Currency Regex Studio
Generate & Validate patterns for any global currency format
How to Use Currency Regex
Select a Country Preset or use the All Countries dropdown.
Adjust Decimal Precision and Separators.
Test your pattern in the Validation Lab.
Export the Code Snippet for your application.
Reference Patterns
| Format | Snippet |
|---|---|
| Standard USD ($1,234.56) | ^\$\d{1,3}(,\d{3})*(\.\d{2})?$ |
| Euro Pattern (1.234,56 ā¬) | ^\d{1,3}(\.\d{3})*(,\d{2})?\sā¬$ |
| Indian Rupee (ā¹1,00,000) | ^ā¹\d{1,3}(,\d{2,3})*(\.\d{2})?$ |
Charset Analysis
| Type | Entropy |
|---|---|
| Digits (0-9) | 3.32 bits/char |
| Symbols & Separators | 4.50 bits/char |
Welcome to the Currency Regex Studio ā the ultimate tool for developers to build and test robust financial validation patterns. Whether you need to match US Dollars with commas, Euros with dots, or Indian Rupees with unique grouping, our studio generates production-ready regex in seconds.
How to Use
- Select a Country Preset or use the "All Countries" menu to set base rules.
- Customize Separators (Comma/Dot/Space) for decimals and thousands.
- Adjust Symbol Positioning (Prefix/Suffix) and choose whether to allow spaces.
- Set Decimal Precision for fixed or flexible decimal places.
- Validate your patterns in real-time with our visual Testing Lab.
- Export your pattern as code for JavaScript, Python, or Java.
Features
- Global Intelligence: Built-in support for 20+ international currency standards.
- Smart Selectors: Toggle thousand separators, decimal points, and negative signs.
- Live Match Highlighting: Instantly see valid and invalid parts of your test input.
- Precision Control: Define exact decimal ranges for banking-grade validation.
- Code Generators: Get ready-to-use snippets for any programming language.
- Strength Meter: Evaluate the robustness and complexity of your regex pattern.
Common Use Cases
- Payment Gateways: Validate user-entered amounts before processing.
- Finance Apps: Enforce consistent money formats in expense trackers.
- Data Transformation: Standardize currency strings from different sources.
- Form Validation: Ensure users enter readable monetary values in checkout forms.
- E-commerce: Support global selling with localized currency validation rules.
Tips & Best Practices
š” Use a country preset as a starting point ā it covers most edge cases automatically.
š Escape currency symbols like $ (\$) in your code to prevent regex errors.
ā” Remember that some countries (like France) use a space as a thousand separator.
š If you need generic matching, set the symbol to "Flexible" to match with or without symbols.
š Use the "Bulk Validator" to test an entire list of sample amounts at once.
Common Questions
How do I handle comma decimals?
In many European countries, a comma is used as a decimal separator. Simply toggle the "Decimal Separator" to a comma in our studio, and the regex will be updated to handle formats like 1.234,56.
Can I validate multiple currencies with one regex?
Yes! By setting the symbol position to "Flexible" and leaving the symbol field empty or using a character class, you can create a pattern that validates numeric currency formats broadly across different regions.
