Decode a token, hash a string, test how strong a password is, check a file's fingerprint. These help with everyday checks while you build or debug something. They are not a security audit, and since everything runs locally, what you paste in is never sent off.
- Hash GeneratorGenerate SHA-1, SHA-256, and SHA-512 hashes.
- Base64 Encoder / DecoderEncode or decode text using Base64.
- URL Encoder / DecoderEncode or decode text for safe use in URLs.
- Password Strength CheckerCheck how strong a password is and why.
- JWT DecoderDecode a JSON Web Token's header and payload.
- MD5 Hash GeneratorGenerate an MD5 hash of any text and compare it to a known hash.
- CRC32 Checksum CalculatorCalculate CRC-32 and Adler-32 checksums for text.
- HMAC GeneratorCreate HMAC-SHA1, SHA-256, SHA-384, or SHA-512 signatures with a secret key.
- AES Text EncryptorEncrypt and decrypt text with AES-256-GCM and a passphrase, all in your browser.
- TOTP Code GeneratorGenerate two-factor authentication codes from a Base32 secret.
- Caesar CipherEncrypt, decrypt, or brute-force a Caesar or ROT13 cipher.
- Vigenère CipherEncrypt and decrypt text with a Vigenère keyword cipher.
- Email Address ObfuscatorHide an email address from simple scrapers with HTML character encoding.