Hex Validator
Paste hexadecimal text 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
48656c6c6f
Example Output
✓ VALID — 10 digits, 5 bytes
How to Use
- 1Paste the hexadecimal text 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 Hex Validator
Hex Validator checks whether a string contains only hexadecimal digits (0–9, a–f), with an optional 0x prefix and spaces ignored. You can require an even digit count when the hex represents bytes.
The tool shows the digit count and the equivalent byte count — useful for validating hashes, colors, or binary dumps in hex form.
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.