Tools - Netrust

SSL · PKI · Digital signing

A complete toolkit for SSL & PKI work.

Generate, decode, validate, and convert SSL certificates and CSRs. Plus legally recognised digital signing with Singpass.

No signup Free to use 9 free tools

Digital Signing

nSignSG

Sign PDF documents digitally using Singpass — legally recognised under Singapore's Electronic Transactions Act, with a verifiable signer identity on every page.

PDF signing Singpass e-Signature

Certificate Tools · 4 tools

Generate. Decode. Inspect.

Create CSRs from scratch, inspect every field of an existing CSR, decode any X.509 certificate, and check revocation status live via OCSP or CRL.

CSR Generator CSR Decoder Certificate Decoder Revocation Checker

SSL & TLS · 4 tools

Validate. Convert. Match.

Live-test SSL/TLS installations, convert certificate files between PEM, DER, and Base64, verify cert and key pairs, and look up DNS records to confirm deployment prerequisites.

SSL Checker SSL Converter Cert Key Matcher DNS Lookup

Digital Signing

1 tool

nSignSG Sign PDF documents digitally with Singpass — legally recognised under Singapore's Electronic Transactions Act. PDF signing Singpass e-signature →

Certificate Tools

4 tools

CSR Generator Generate a Certificate Signing Request and private key. RSA or ECC, with SAN support. RSA / ECC SAN support PEM output → CSR Decoder Paste a CSR to decode every field — subject, SANs, key type, key size, and signature algorithm. CSR decode PEM / DER Fingerprint → Certificate Decoder Inspect any X.509 certificate — issuer, subject, SANs, validity dates, and every extension. Accepts PEM or DER. PEM / DER / Base64 Cert decode Instant result → Certificate Revocation Checker Check whether an X.509 certificate has been revoked via OCSP or CRL — verify its current trust status before relying on it. OCSP CRL Live status →

SSL & TLS Tools

4 tools

SSL Checker Live-test your SSL/TLS installation — inspects the chain, expiry, and common configuration issues. Chain check Expiry Live scan → SSL Converter Convert certificate files between PEM, DER Base64, and DER Hex. PEM DER Base64 DER Hex → Cert Key Matcher Verify your SSL certificate and private key are a matching pair before deployment. Cert + key check RSA / ECDSA Instant result → DNS Lookup Inspect a domain's DNS records, mail authentication, DNSSEC, and blacklist reputation. Queries Google and Cloudflare in parallel. A / AAAA / MX SPF / DMARC DNSSEC →

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