Encryption Tools
Encryption Tools
AES-256-GCM encrypt/decrypt text or files with PBKDF2 key derivation; RSA-OAEP key pair generation, encryption, and decryption; SHA hashing with batch mode — all in-browser via Web Crypto API. Files never leave your device.
AES-256-GCM with PBKDF2 key derivation (310k iterations, SHA-256). Encrypted output is Base64. All operations run entirely in your browser.
Encryption Tools
AES-256-GCM encrypt/decrypt text or files with PBKDF2 key derivation; RSA-OAEP key pair generation, encryption, and decryption; SHA hashing with batch mode — all in-browser via Web Crypto API. Files never leave your device.
Common uses
- Encrypt a secret note with AES-256
- Encrypt a file with a password
- Decrypt an encrypted .enc file
- Hash 100 strings at once with batch mode
- Generate an RSA key pair in-browser
- Verify a webhook HMAC signature
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Frequently asked questions
How do I encrypt a file with a password?
Use the File Encrypt tab: pick the file and a password and it encrypts with AES-256-GCM, deriving the key with PBKDF2. Everything runs locally via the Web Crypto API.
How do I verify a webhook signature?
Use the HMAC tab: enter the payload and shared secret and compare the computed HMAC with the signature header.
Can I generate an RSA key pair?
Yes, the RSA-OAEP tab generates key pairs and encrypts and decrypts with them.
What happens if I forget the password?
The data cannot be recovered, since the key is derived from your password.
Is my data uploaded to a server?
No. This tool runs entirely in your browser — your input is processed locally on your device and is never uploaded or stored on a server.