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Certificate Format Converter

Convert PEM, CRT, DER and PFX files. Every output is reopened and checked before download.

Files, private keys and passwords are sent to this server for this conversion. They are not saved to your account, session or application logs. Temporary upload/PFX files are removed after processing. Use only a server you trust. Privacy & Cookie Policy(opens in a new tab)

1. Your Certificate Input Format

Upload your DER or PFX / P12 file. Up to 256 KiB. Upload a file or paste PEM text, not both. Up to 256 KiB per certificate input and 16 certificates in total.

Complete One of These Fields Certificate File Certificate PEM Text

Source PFX Password Required only if the source PFX is password-protected.

Additional Certificates (PEM) Optional

Add intermediate or root certificates you already have. Their order does not matter.

Additional Certificate File Additional Certificates (PEM)

2. Output Options Output Format

Separate Private Key Optional If not in the input

For PFX or PEM with a private key, a matching key is required. Add it here only if it is not already included in your input. Choose a file or paste PEM text, not both.

Private Key File Private Key PEM Text

Source Private Key Password Required only if the input private key is encrypted.

New Output Password

Use at least 12 characters. Keep this password safe. It cannot be recovered here.

Formats and Password Help

CRT is a filename convention. PEM and DER certificate contents are detected. PFX and P12 are the same container format.

The source PFX password, private key password and output password are independent. Empty source passwords are supported.

Conversion does not change certificate validity or renew a certificate.

Spam protection

Verified output

Download file

Encrypted private key included

Certificates only, without a private key

Excluded with your confirmation: private key additional certificates

File SHA-256:

SSL tools

Looking for the certificate itself?

Answer a few quick questions and get a concrete recommendation.

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