PEM Viewer

PEM files are the standard format for storing cryptographic keys and certificates. This tool parses PEM blocks and shows you the type (private key, public key, certificate, CSR), algorithm, size, and Base64 body. You can paste PEM content directly or upload a .pem, .crt, or .key file.

Processed on your deviceNo signup required100% free
PEM Viewer
Paste a PEM block or drag a .pem/.crt/.key file
PEM Input
Parsed Output

Paste a PEM block to view details

Supports keys, certificates, and CSRs

How to Use

  1. Paste a PEM block into the input area, or drag a file onto it.
  2. The tool automatically detects the PEM type and shows metadata.
  3. View the Base64 body content in the parsed output panel.
  4. Copy the original PEM content with the copy button.

Related Tools

RSA Key Generator

CSR Generator

AES Encryptor

Frequently Asked Questions

What PEM types are supported?
RSA/EC private keys, public keys, X.509 certificates, and PKCS#10 certificate signing requests (CSRs).
Can I edit the PEM content?
You can paste and modify PEM content in the input area, but this tool is for viewing only — it doesn't validate or re-encode the data.
Is it safe to paste private keys here?
All processing is client-side. The data never leaves your browser. However, avoid pasting production secrets into any web tool as a best practice.