~/tools/mail/dkim-generator
DKIM Generator
Generate a DKIM keypair in your browser or format a pasted key into a DKIM TXT record.
This tool can generate a DKIM private key in your browser.
Generation runs entirely on this device via WebCrypto — nothing is uploaded, and closing the page discards the key. That still requires trusting this site and every line of code it serves, which no website fully earns. Treat browser-generated keys as fit for tests and experiments; for anything critical, generate the key locally instead. The exact commands appear below once the domain and selector are filled.
A short name identifying this key.
The record is published at <selector>._domainkey.<domain>.