PFX viewer
To open a PFX file, drop it in the box below. It opens straight away, even with no extension or the wrong one. Your browser opens it on your device: nothing is uploaded.
What you see
| PFX in the viewer | |
|---|---|
| Password | Used on this device, then cleared from the field |
| Encryption read | AES (OpenSSL 3, current Windows and macOS) and the older 3DES, RC2 and RC4 |
| Shown | Certificates, the key’s type and size and which certificate it matches |
| Never shown | The private key itself |
| Extensions | .pfx, .p12 |
| Upload | None: opened on your device |
What is a PFX file?
A PFX or P12 file (PKCS#12) holds a certificate together with its private key, protected by a password. Windows, macOS Keychain and Java export certificates with their keys this way.
It is tried with no password first; otherwise you type the password and press Open. Then the certificates in chain order and the private key’s type and size, with which certificate it matches. Key material is never shown for a PFX.
How to open a PFX file
- Add your PFX. Drop the file in the box, choose it or paste it.
- Look at it. It is tried with no password first; otherwise you type the password and press Open. Then the certificates in chain order and the private key’s type and size, with which certificate it matches. Key material is never shown for a PFX.
- Take it further. Open in hands it, in a new tab, to File converter.
Questions
Drop it here and type its password. The certificates and the key’s type are listed; the key itself is not shown.
Without it nothing in the file can be read; ask whoever exported it to export it again.
Yes. Convert makes a PEM file of the certificates, and adds the private key, unencrypted, only if you switch that on.
No. The viewer runs in your browser and opens the file on your device. Nothing is sent anywhere.