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Free SSL tools

Useful whether or not you buy from us. No account needed, and nothing you enter is stored.

Certificate checker

Enter a website address and see the certificate and chain it is serving, when it expires, whether the intermediate certificate is installed and whether the name matches.

Check a website →

CSR and certificate decoder

Paste a CSR or certificate and see what is inside: names, key size, country, validity, issuer and fingerprints. Handy for checking a CSR before you order.

Decode something →

Chain builder

Paste your certificate and any intermediates in any order. We sort them, look up a missing intermediate and give you a full chain file ready to install.

Build a chain →

CSR generator

Make a CSR and private key in your browser, with the right key size and country code. Nothing is sent to us.

Make a CSR →
Need a certificate, or want a hand sorting one out? Help me choose, or ring us on 03333 444 205.
ProntoSSL Manual

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