Security
Local-first tools for authentication and credentials.
9 tools9 local · no login
TOTP Generator
Generate one-time codes locally for setup and debugging.
FreeLocalJWT Decoder
Decode JWT headers and payloads locally without uploading tokens.
FreeLocalHash Generator
Generate SHA hashes locally for text snippets and integration checks.
FreeLocalUUID Generator
Generate UUIDs locally and validate pasted identifiers.
FreeLocalPassword Generator
Generate strong random passwords locally with entropy estimates.
FreeLocalSymmetric Encryption
Encrypt and decrypt local text with AES-GCM using a shared password.
FreeLocalCaesar Cipher
Shift letters forward or backward through the alphabet for quick classical ciphers.
FreeLocalRail Fence Cipher
Encode and decode zigzag transposition ciphers with adjustable rails.
FreeLocalFile Checksum
Stream local files to calculate and compare MD5 and SHA hashes.
FreeLocal