What this tool is good for
This converter helps you move RSA public and private keys between PEM and XML formats. XML-formatted RSA keys are especially common in older C# and .NET workflows.
All conversion happens locally in the browser, so no uploaded key material is sent to the server.
Typical use cases
- Move RSA keys from OpenSSL-style PEM files into XML expected by a .NET system.
- Convert XML-formatted keys back into PEM for broader tooling compatibility.
- Inspect whether a given key is public, private, or password-protected before deployment.
Common mistakes
- Make sure the selected key type matches the actual key content.
- Password-protected private keys require the correct password before they can be converted.
- Malformed XML or incomplete RSA fields prevent XML-to-PEM conversion.
FAQ
What key types can this PEM to XML converter handle?
The page is designed for RSA public and private keys. It can help convert OpenSSL-style PEM keys to XML and convert XML RSA key material back to PEM when the required fields are present.
Why does my private key password fail during conversion?
Password-protected private keys require the exact passphrase used to encrypt the key. If the password is wrong, the key format is unsupported, or the PEM block is incomplete, conversion cannot continue.
Is XML still a common format for RSA keys?
XML RSA keys are less common in modern tooling, but they still appear in older .NET, C#, and enterprise integrations. Converting to PEM often makes the same key easier to use with newer libraries.
Related tools
- RSA Encryption & Decryption：Encrypt and decrypt short text with RSA in your browser
- RSA Key Pair Generator：Generate RSA public and private key pairs in PEM format
- RSA Private Key Password：Add, change, or remove RSA private key passwords