RFC 2822 Validator
Paste an RFC 2822 date to check whether it is valid — complete with the reason if it is invalid and a component breakdown if it is valid. Everything is processed on your device.
Everything runs in your browser. Your data is never sent to our servers.
Example
Example Input
Mon, 27 Jun 2026 12:00:00 +0700
Example Output
✓ VALID — zone +0700
How to Use
- 1Paste the an RFC 2822 date you want to check into the input box.
- 2If the tool offers extra options (e.g. dialect, flags, or variant), set them as needed.
- 3Click Validate (or press Ctrl+Enter).
- 4Read the result badge — VALID, INVALID, or VALID with a warning — along with the details and the list of issues, if any.
About RFC 2822 Validator
RFC 2822 Validator checks the date format used in email and HTTP headers (e.g. "Mon, 27 Jun 2026 12:00:00 +0700"). It breaks out the day, date, time, and zone, then confirms the date is parseable by the Date engine.
Useful for validating the Date header on emails or HTTP responses before processing.
FAQ
Is my data sent to a server?
No. All validation runs in your browser with JavaScript. Nothing is uploaded, logged, or stored on our servers — safe for sensitive data.
How is this validator different from a parser or formatter?
A validator answers one question: is this input correct/valid? It returns a valid/invalid badge with the reason. A parser breaks input into its components, and a formatter tidies its layout. Use a validator when you just need to confirm something is sound before using it.