Yoonadev

Certificate Workbench

CSR Inspector

Request domains & public key

Inspect the domains, subject and public key in a certificate request locally.

🔒 Local-only · No upload · No storage

Try an example

TEST ONLY · Public synthetic examples. Never use these keys for real services.

Paste a request beginning with -----BEGIN CERTIFICATE REQUEST-----.

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Advanced information / extensions

Inputs and results are cleared when edited, cleared or when leaving this page. Copy and file saving happen only when you request them.

PEM text only · up to 1 MiB, 20 blocks, 128 KiB per block. DER, PFX/PKCS#12, JKS and encrypted keys are not supported in v1.

Usage guideWhen to use · How to use · Understand results

When to use this tool

Review a certificate signing request before sending it to an issuer, especially its names and public key.

How to use it

  1. Paste the CSR PEM beginning with CERTIFICATE REQUEST, or use the CSR example.
  2. Inspect Subject, SAN, public key and the reported request-signature result.

Reading the result

A valid CSR signature does not prove domain ownership or guarantee issuance. Correct mistakes by creating a new request rather than editing encoded PEM by hand.

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