Convert CRT To CER Online for Free

Note:

Certificatetool.com offers online and free SSL certificate format conversion tool without needing any software installation or running the OpenSSL commands. If you would like to convert your CER file to other formats, check CRT Converter page.

Converting CRT to CER online is easy using Certificatetool.com tool

Just follow these steps:

• Upload Certificate File and Private Key (Optional)
• Select the initial file format and the format you want to convert to.
• Click the "Convert" button to begin the file conversion process. Please wait until output file is ready for download.

What is CRT format?

The extension CRT is employed for certificates, with CER and CRT being almost interchangeable. This is especially prevalent in *nix systems. A file with a .crt extension encompasses an end-entity certificate, its public key, and identity details such as domain names verified to be linked with the certificate.

CRT certificates play a crucial role in enabling secure TLS handshakes, substantiating website identity ownership to browsers, and establishing encrypted sessions that are shielded against eavesdropping and content tampering.

What is CER format?

A .cer file functions as a Secure Sockets Layer (SSL) certificate file, crucial for securing communication between web servers and web browsers. SSL certificates achieve this by encrypting transmitted data, thwarting eavesdroppers from intercepting and deciphering sensitive information.

SSL certificates are broadly categorized into server certificates and client certificates. Web servers utilize server certificates to authenticate themselves to web browsers, while client certificates enable web browsers to authenticate themselves to web servers. While .cer files are primarily associated with server certificates, they can also be employed for client certificates.

To utilize a .cer file, installation on the respective web server or web browser is necessary, with installation procedures varying depending on the software in use. Once installed, the .cer file becomes instrumental in verifying the identity of the counterpart before establishing a secure connection.

For web browsers, the validity of the .cer file can be confirmed by checking the lock icon in the address bar; a green lock icon signifies a valid certificate and a secure connection. On the other hand, web servers can verify .cer file validity by examining error logs, where the absence of errors indicates a valid certificate, signaling the server's readiness to accept connections.

Why Choose Certificatetool.com to Convert Your Certificates?

Certificatetool.com offers the following advantages:

• Effortless online conversion: Our website seamlessly runs code in the backend to convert your certificate files directly online. No need to grapple with OpenSSL commands yourself!
• Expertise at your fingertips: We handle all the complexities of SSL certificate file conversions, saving you time and effort.
• Fast, free, and simple: Upload your file, private key, and press the "Convert" button. It's that easy!
• Unmatched privacy: We never store any files you upload, ensuring complete confidentiality and peace of mind.

Don't hesitate to experience the convenience of Certificatetool.com for your certificate conversion needs.