Encryption and Decryption
Supports text encryption and decryption of multiple encryption algorithms
Settings
plaintext
ciphertext
Private & SecureRuns in your browser — nothing is uploaded
Easy to UseJust paste or type — instant results
Free ForeverUnlimited use, no sign-up
Fast & ReliableAdvanced tech, fast and stable
Sometimes you need to scramble a short piece of text so only someone with the password can read it. Enter your text and a password to encrypt it with AES or another cipher, or paste ciphertext and the password to get it back, all in your browser.
How to Use
- 1Enter inputSelect operation mode (Encrypt/Decrypt)
- 2Set optionsChoose algorithms (AES/RSA/DES/3DES etc.)
- 3ProcessEnter text and provide Key/IV or upload public/private key
- 4Get resultCopy or download results
Common use cases
Protect a noteEncrypt a snippet before pasting it somewhere semi-public.
Share a secret with a passwordSend the ciphertext, then share the password separately.
Decrypt what you receivedPaste ciphertext and the agreed password to read it.
Compare the algorithmsSee how AES, DES and others handle the same input.
Good to know
The password is everything, and yours to keepThere is no reset and no backdoor. Lose the password and the text cannot be recovered; a weak password means weak protection.
Prefer AES; older ciphers are datedAES is the modern standard. DES and similar are kept for compatibility but are weak by today's measure, so do not pick them for real secrets.
Both sides need the same settingsThe cipher, mode and password must match on encrypt and decrypt. A mismatch just yields garbage, not an error you can act on.
It is a utility, not a security reviewThis is fine for casual protection, but it has not been audited for high-stakes secrets. For those, use vetted, dedicated tools.