Private security tools.
Hash, encrypt, inspect, and generate security values using native browser cryptography.
Work locally, download directly
Sensitive text, keys, files, and tokens stay on your device. Review each tool’s output and limitations before production use.
Encrypt File
Protect any file with AES-GCM encryption in your browser.
File Checksum
Generate and compare SHA checksums without uploading files.
Duplicate File Finder
Identify files with identical contents using local SHA-256 hashes.
Text Hash Generator
Generate SHA-256, SHA-384, or SHA-512 text digests in common encodings.
PBKDF2 Key Derivation
Derive configurable password key material using native Web Crypto.
AES Text Encryption
Encrypt and decrypt text with AES-256-GCM and a self-contained JSON payload.
Secure Random Token Generator
Create cryptographically secure hex, Base64, or URL-safe random tokens.
HOTP Generator
Generate RFC 4226 counter-based one-time passwords from a Base32 secret.
TOTP Generator
Generate RFC 6238 time-based one-time passwords using the local device clock.
Subresource Integrity Generator
Create a browser-ready integrity attribute hash for scripts, styles, and web assets.
JWT Inspector
Read JSON Web Token headers and claims without transmitting them.
Secure Password Generator
Create strong random passwords with configurable character groups.
Metadata Scrubber
Remove hidden image metadata before you share.