DKIM record formatter

Wrap a DKIM TXT value into 255-character quoted chunks for DNS. Nothing is uploaded.

Fill the fields, then run the tool.

How to use the DKIM record formatter

Paste a DKIM TXT value or a public key line from the key generator.
Click Format.
Copy the quoted chunks into the selector._domainkey TXT record.

Why wrap

Many DNS UIs reject a single string over 255 characters. Quoted chunks concatenate on the wire. Generate the key pair on the DKIM key generator, then format here if your host needs splits.

Nothing is uploaded

Formatting is local. The private key should never be pasted here.

DKIM record formatter FAQ

Selector name?

This page does not set the DNS name. Use selector._domainkey.example.com.

Can I paste PEM?

Paste the TXT-style p= value, not the private PEM.