Validators
Validate documents and test expressions: JSON, XML, HTML, XPath, regex, cron and more.
XML Validator
Validates an XML string or file against the specified XSD schema. Well-formedness is checked first, then the document st…
JSON Validator
Validates a JSON string against RFC 8259 and the JavaScript language specification. Configure the validator to be strict…
HTML Validator
Validates HTML documents for well-formedness and best practices: finds missing or unbalanced tags, unknown elements, dup…
XPath Tester
Test your XPath expressions against an XML document. Supports XPath functions (string(), number(), name(), string-length…
Credit Card Number Generator & Validator
Validate a credit card number with the Luhn algorithm and identify its issuer, or generate fake, Luhn-valid test numbers…
Regular Expression Tester
Test your JavaScript regular expressions against any text and clearly highlight all matches and capture groups.…
Java Regular Expression Tester
Test Java regular expressions (java.util.regex) against any input, highlight all matches, and try replaceFirst / replace…
Cron Expression Generator (Quartz)
Generate a Quartz cron expression with an easy to use interface, convert a cron expression into readable text and previe…