A one-time link instead of a plaintext email: the content is encrypted in your browser (zero-knowledge), viewable exactly once, then deleted.
Don't share a password by email, chat or plain text — it stays readable there forever. Instead use a self-destructing one-time link: Forge12's free “Share a password” tool encrypts it in your browser (zero-knowledge, AES-GCM). The link works only once, then the secret is deleted — the server never sees the plaintext.