Security Tools
Protect your data and enhance online privacy using our free security tools. Easily generate strong passwords, encrypt text, generate cryptographic hash digests, manage encoding,…
Check how strong a password is, with a rough entropy estimate — computed locally in your browser.
Generate a SHA-256 hash of any text, computed locally in your browser using the Web Crypto API.
Generate a SHA-512 hash of any text, computed locally in your browser using the Web Crypto API.
Generate an MD5 checksum of any text, computed locally in your browser.
Generate an HMAC of a message with a secret key, using SHA-1, SHA-256, SHA-384 or SHA-512 — computed locally in your browser.
Generate one or more random (version 4) UUIDs, computed locally in your browser.
Generate a random string of a chosen length and character set — for test data, sample IDs, or anything else — computed locally in your browser.
Generate a cryptographically secure random token — hex or base64url encoded, suitable for API keys or session tokens — computed locally in your browser.
Decode and inspect JWT tokens securely in your browser. View header, payload, claims, expiration and signature details without uploading your token.
About Security Tools
Protect your data and enhance online privacy using our free security tools. Easily generate strong passwords, encrypt text, generate cryptographic hash digests, manage encoding, and perform instant browser-based security checks without sending data to external servers.