About Wallet Signature Inspector
A wallet signature inspector helps you review Ethereum signed messages, EIP-191 framing, and r/s/v payload structure. It validates exact 65-byte hexadecimal shape, but it does not perform cryptographic signer recovery or prove that a signature belongs to an address.
How to Use Wallet Signature Inspector
- 1Paste the original message and signature payload in the format the page expects so the tool can inspect the same data your app processed.
- 2Review the parsed signature fields, message contents, and any length, hex, or formatting warnings that appear in the output.
- 3Compare the inspected payload with your wallet flow, login challenge, or support trace before you adjust the client or backend implementation.
Common Use Cases for Wallet Signature Inspector
Sign-in with Ethereum debugging
Check whether a login challenge and the returned signature payload still match after a wallet, library, or backend change.
Wallet integration QA
Inspect message format and signature fields during development so you can spot missing prefixes, malformed hex, or copy mistakes quickly.
Security review handoffs
Document the exact signed payload shape used by an app before you pass the flow to another engineer or external reviewer.
Frequently asked questions
Does a well-formed signature payload replace backend authentication checks?
No. The inspector helps you review the message and signature structure, but your real authentication flow still needs nonce handling, domain checks, replay protection, and the server-side rules your app depends on.
What data should I paste for the most useful result?
Use the original message text and signature values exactly as they were produced by the wallet or captured from your logs. Preserving the raw payload makes it much easier to compare the output with your application behavior.