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PKI toolbox

Decode and inspect your PKI artefacts, X.509 certificates, CSRs, chains and fingerprints, directly in the browser. 11 tools are available today.

Decoding

Inspect every field of an X.509 certificate: subject, issuer, validity, SANs, key usage and fingerprints.

Decode a PKCS#10 signing request: subject, public key, signature algorithm and requested extensions.

Split a concatenated PEM bundle into an ordered chain and verify every issuer-to-subject link.

Certificate Revocation List: revoked entries, dates and reasons.

Inspect PKCS#7 / CMS bundles and the certificates they carry.

Open password-protected .p12 / .pfx files.

Compute the SHA-1, SHA-256 and SHA-512 fingerprints of a certificate's DER.

Raw, expandable ASN.1 tree of any DER-encoded artefact.

Convert PKI artefacts between PEM, DER and PKCS#7.

Generate a self-signed certificate via WebCrypto, entirely in the browser.

Issue a certificate signed by an existing CA: new key pair or CSR, leaf or intermediate CA, with a ready-to-use fullchain.