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 who vouches for its issuer or signer? The signature validator and the list checkers read the EU's published lists. The SD-JWT and mdoc validators check trust only against a demo source, and their reports say so.

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 and its Mobile Security Object, then check its chain against a demo IACA root.

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 →

C2PA Trust List Checker

Live

Check a Content Credentials signing certificate against the C2PA trust list and certificate profile. See too whether it declares itself an EU qualified certificate.

For Content provenance and C2PA developers · Open the tool →