CSR Decoder

Paste a Certificate Signing Request to instantly verify the domain, organisation details, key type, and SANs before submitting to a CA.

Your CSR never leaves your browser. All decoding is performed locally using JavaScript - nothing is sent to our servers.

Decode CSR

Paste your CSR below (including the -----BEGIN CERTIFICATE REQUEST----- header and footer).

Subject

Common Name (CN)
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Organisation (O)
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Organisational Unit (OU)
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Locality (L)
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State / Province (ST)
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Country (C)
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Key & Algorithm

Key Type
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Key Size / Curve
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Key Strength
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Signature Algorithm
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Subject Alternative Names (SANs)

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