Security & Privacy

Check, hash and protect — all offline. Score how strong a password is, generate cryptographic hashes, encrypt a note with a passphrase or encode and decode URL components. Because every tool runs in your browser, nothing sensitive is ever transmitted, logged or stored.

10-Minute Email Disposable inbox that self-destructs in 10 minutes. New

Password Strength Score a password as you type. Live

Hash Generator SHA-256 and friends, client-side. Live

Bcrypt Generator Hash and verify passwords with Bcrypt. New

htpasswd Generator Generate Apache htpasswd auth lines. New

PIN Generator Quick 4, 6 or 8-digit random PINs. New

Encrypt Text AES encrypt notes with a passphrase. New

URL Encoder Encode and decode URL components. Live

Secure Notes Self-destructing one-time notes. Soon

MAC Lookup Find the vendor behind a MAC. Soon

Why use these security & privacy?

Every tool in this collection runs entirely in your browser. That means there's nothing to install and nothing to sign up for, and crucially, the files and text you work with never leave your device — no uploads, no accounts, no tracking. Just open a tool and get the job done.

Browse the full set of ToolNest tools, or jump straight to the one you need above.