melt ☆
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Description:
Backup and restore Ed25519 SSH keys with seed words
Type: Formula  |  Latest Version: 0.6.2@0  |  Tracked Since: Dec 26, 2025
Links: Homepage  |  GitHub  |  @charmcli  |  formulae.brew.sh
Stars: 706  |  Forks: 15  |  Language: Go  |  Category: Security
Tags: ssh security backup keys recovery cli
Install: brew install melt
About:
Melt is a command-line tool that converts Ed25519 SSH private keys into a human-readable 24-word mnemonic seed phrase for secure backup. It allows users to restore the original private key from these words at a later time. This process facilitates safer offline storage and easier recovery of SSH credentials without exposing the raw key file.
Key Features:
  • Converts Ed25519 SSH keys to 24-word seed phrases
  • Secure restoration of keys from seed words
  • No network access required (offline operation)
  • Simple, text-based backup format
Use Cases:
  • Creating offline backups of SSH keys
  • Securely storing SSH credentials in password managers
  • Migrating SSH keys between machines via manual transcription
Alternatives:
  • ssh-keygen – Standard tool for key generation but lacks native mnemonic seed backup features.
  • BIP39 tools – Designed for crypto wallets, not directly compatible with SSH key formats.
Version History
Detected Version Rev Change Commit
Dec 26, 2025 3:28pm 0.6.2 0 VERSION_BUMP a16f4151
Oct 9, 2025 11:03am 0 VERSION_BUMP 4e944276
Sep 15, 2025 12:45am 0 VERSION_BUMP 1c5eba2b
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