Security

Local security helpers for generating strong passwords and passphrases, computing text hashes (SHA-256 / 384 / 512), creating HMAC message authentication codes with a shared secret, and verifying file checksums (including optional expected-hash match) — all without uploading secrets or files to a server. Use them for private generation, integrity checks, and local verify workflows in the browser. Hash and HMAC digests are not a password-storage substitute; store credentials with a proper server-side scheme when building apps. Pick a tool below when you need a quick, private helper.