🔐 Free SSL Certificate Signing Request (CSR) Generator

Generate a Certificate Signing Request (CSR) and private key securely using our free online CSR generator. This tool works for Apache, Nginx, cPanel, Plesk, and most other servers.

✔ Free & instant ✔ Secure (private key generated locally) ✔ Supports standard and wildcard domains.

Key Type:

Size:

Common Name - CN: ? Enter the fully qualified domain name (FQDN) for the certificate. This is the exact web address you want to secure (e.g., www.domain.com, domain.com, or subd.domain.com). If you are generating a wildcard certificate, the common name should begin with an asterisk (e.g., *.domain.com). Please complete the CN field

CSR admin email: ? An email address for the certificate administrator or contact person. This address might receive validation emails or renewal notices.

Country:

State/Area: ?Enter the state where your organization is legally located. Do not abbreviate.

Locality: ?Enter the city where your organization is legally located. Do not abbreviate.

Organization: ?Enter the full legal name of your company or organization. If you are an individual, you can enter your own name or "NA".

Organization Unit: ?Enter the department or division within your organization (e.g., "IT Department"). Optional.

Send me the CSR/KEY (Optional):

Anti-bot captcha: 9 + 12 = ?

What Is a Certificate Signing Request (CSR)?

A CSR (Certificate Signing Request) is a block of encoded text that contains information about your website and organization. It is required when applying for an SSL certificate.

The CSR includes:

Common Name (domain name)
Organization & location details
Public key (linked to your private key)

⚠️ Important: The private key created with the CSR must be kept secure. If it is lost, the SSL certificate will not work.

How to Use the CSR Generator (Step-by-Step)

Enter your Common Name (CN)
Example: example.com or *.example.com for wildcard SSL
Fill in your organization details
Select key type and size
Recommended: RSA 4096 for better security.
Send me the CSR/KEY (Optional): recommended to have a copy of your private key.
Click Generate CSR
Save both files:
✅ CSR file
🔐 Private Key (do NOT lose this)

You will need the CSR when purchasing or renewing your SSL certificate.

What to Do After Generating Your CSR

Once your CSR is ready:

Submit the CSR when ordering an SSL certificate
Complete domain or organization validation
Install the issued certificate on your server

👉 You can use our other tools to help:

SSL Certificate Checker
Certificate & Private Key Matcher
Certificate Decoder

Can I Use This CSR for Wildcard or Multi-Domain SSL?

Yes, absolutely.

✔ Wildcard SSL (*.example.com)
✔ Single-Domain SSL
✔ Multi-Domain (SAN) SSL

Just make sure the Common Name matches the type of certificate you plan to purchase.

Frequently Asked Questions (FAQ)

Is this CSR generator safe?

Yes. All cryptographic operations are performed server-side using OpenSSL. We never store your private key.

What key size should I use?

We recommend RSA 2048, which is secure and supported by all certificate authorities.

What happens if I lose my private key?

You will need to generate a new CSR and reissue the certificate. Always back up your private key securely.

Can I use this CSR for Apache, Nginx, or cPanel?

Yes. The generated CSR is compatible with Apache, Nginx, cPanel, Plesk, and most hosting platforms.

Need an SSL Certificate?

After generating your CSR, you can order SSL Certificates from https://mysslpro.com:

Domain Validated (DV) SSL
Organization Validated (OV) SSL
Extended Validation (EV) SSL
Wildcard SSL Certificates

👉 Choose the right SSL certificate for your website to secure traffic and build trust.