Data & Dev

• HTTP Status Code Lookup Look up what an HTTP status code means.
• Luhn / Card Validator Validate a credit-card number (or any Luhn number).
• Bytes / Data Size Converter Humanize a byte count, or parse a size back to bytes.
• Email Validator Check whether a string is a well-formed email address.
• JSONPath Evaluator Query a JSON document with JSONPath.
• MIME Type Lookup Look up a MIME type from an extension (and back).
• User-Agent Parser Identify browser, OS and device from a User-Agent string.
• JSON Diff Compare two JSON documents and see what changed.
• JSON Schema Validator Validate a JSON document against a JSON Schema.