Tessio.Labs

Free validators for EU digital identity and trust. Each one answers a single question rigorously: does this credential or signature actually validate, and is its issuer or signer actually trusted in the EU?

Decoding is commoditized. The edge here is validation plus EU trust anchoring, delivered as one consistent hub by the people who build Tessio. The tools are free, and the ones that run in your browser store nothing you paste.

SD-JWT VC Validator

Live

Decode an SD-JWT verifiable credential, expand its disclosures, and check that each one binds to the signed digests.

For EUDI credential developers · Open the tool →

eIDAS Signature Validator

Live

Validate a PAdES, CAdES, or JAdES signature: integrity, timestamp, chain, and qualification against the EU trusted lists.

For Signing and .NET developers · Open the tool →

mdoc / mDL Validator

Live

Validate an ISO 18013-5 mobile document, its Mobile Security Object, and its IACA trust chain.

For Wallet and verifier developers · Open the tool →

EU Trusted List Checker

Live

Check whether a certificate is a qualified CA on an EU trusted list, or issued under one, and which national list it sits on.

For Compliance and PKI engineers · Open the tool →

EUDI Trusted Entity Checker

Live

Check whether the EU Digital Identity Wallet ecosystem trusts a certificate, as a PID provider, a relying-party access certificate provider, or a public EAA provider.

For Wallet, issuer and relying-party developers · Open the tool →