Cryptography & authentication
A LITTLE HELP FOR YOUR NEXT TASK

CSR Decoder

Inspect a certificate request and its embedded public-key information.

Private by design

Your inputs stay on your device and are not sent to our servers. Optional usage analytics does not receive your files or tool inputs.

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How to use CSR Decoder

  1. Paste a PEM certificate signing request.
  2. Review requested identity, public key and signature algorithm.
  3. Export the decoded request metadata.
Read the detailed guide →

What are the limits of CSR Decoder?

Decodes a CSR; does not validate organizational identity, approve issuance or verify possession through an external authority. Up to 128 KB DER. This tool processes inputs in browser memory and makes no upload or lookup request. Clear inputs or close the tab when finished. Exports and clipboard actions are explicit.

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