PFX / PKCS#12 Content Extractor

Extract a certificate, unencrypted private key and additional certificate chain from a PFX/PKCS#12 that contains a private key, entirely locally.

Privacy: all processing happens locally in your browser. Your input never leaves your device.

What is PFX / PKCS#12 Content Extractor?

PFX (PKCS#12) commonly packages a certificate, private key and additional certificate chain together. This tool handles only a PFX that contains a private key: after a local password entry, it extracts the certificate, an unencrypted PEM private key and additional chain for controlled PEM-based deployment. The exported private key is no longer protected by the PFX password and must be secured immediately. The tool does not promise subject, validity or SAN inspection and does not handle a PFX without a private key.

How to Use

  1. Choose a .pfx/.p12 that contains a private key and enter its password locally
  2. Extract the certificate, unencrypted private key and additional certificate chain in the browser
  3. Save only needed PEM files in controlled storage and promptly protect or remove unencrypted private-key copies

FAQ

Can a PFX be extracted without its password?
Leave the password blank for a file that was exported without a password. A password-protected file requires its original password; its protection cannot be bypassed. Obtain it from the legitimate holder or re-export from a controlled source.
Why is the exported private key unencrypted?
The current function outputs an unencrypted PEM for controlled deployment imports. Protect the resulting file immediately according to the environment's security policy.
Can it handle a PFX without a private key?
Not currently. This function accepts only a PFX/PKCS#12 that contains a private key; use a complete export package.

Related Tools

SSL Key Pair GeneratorGenerate RSA, ECC or SM2 PEM key pairs locally: RSA 2048/3072/4096 and P-256/P-384 are supported.Key Format ConverterConvert RSA PKCS#1 and general PKCS#8 private keys locally, optionally changing output password protection without changing the underlying key.Private Key Parameter ParserInspect public parameters of an RSA, ECC or SM2 private key and export its public key locally, without revealing private mathematical components.Public Key Parameter ParserParse the algorithm, RSA bit length or elliptic-curve parameters of an RSA, ECC or SM2 PEM/DER public key locally.CSR GeneratorCreate a local CSR and private key with DNS/IP SANs using RSA, ECC P-256/P-384 or SM2.CSR Parser & Signature CheckerParse a PEM/DER CSR, show subject, public key and DNS/IP SANs, and verify its embedded signature locally.

Last updated 2026-10-09