How do I share encrypted text with another person securely?

Copy the encrypted ciphertext output and share it via any channel (email, chat, cloud storage). The recipient needs the same passphrase to decrypt it using ToolJiffy's Text Decryptor. Share the passphrase via a separate secure channel (phone call, in-person, or a different encrypted message).

Text Encryptor

Q: What encryption algorithm does ToolJiffy Text Encryptor use?

ToolJiffy uses AES-256-GCM (Advanced Encryption Standard with 256-bit key in Galois/Counter Mode) via the Web Crypto API — the same military-grade encryption standard used by HTTPS, Signal, and WhatsApp end-to-end encryption.

Q: How does the Text Encryptor work in browser memory?

ToolJiffy derives a 256-bit cryptographic key from your passphrase using PBKDF2 (Password-Based Key Derivation Function 2) with 100,000 SHA-256 iterations and a random 16-byte salt, then encrypts the text using AES-256-GCM — all via the browser's native Web Crypto API with zero server uploads.

Q: What output format does the encrypted ciphertext use?

The ciphertext output is Base64-encoded, making it safe to copy-paste in text fields, emails, and JSON strings without binary encoding issues. The salt and initialization vector (IV) are prepended to the ciphertext for self-contained decryption.

Q: What is the difference between AES-256-GCM and AES-256-CBC?

AES-256-GCM provides authenticated encryption — it guarantees both confidentiality (ciphertext cannot be read) and integrity (ciphertext cannot be tampered with undetected). AES-256-CBC provides confidentiality only, without integrity authentication.

Free online text encryptor — protecting notes and secrets before storing or sending them.

100% Private — Runs entirely in browserInstant calculation & resultFree, no sign-up

Your textPassword

Encrypt text with AES-256-GCM — protect notes and secrets in your browser

Sensitive information — personal journal entries, API keys and credentials, confidential business notes, private messages, password lists, and security-sensitive data — should never be stored or transmitted in plain text. AES-256-GCM is the gold standard symmetric encryption algorithm, the same cipher used by HTTPS, Signal, WhatsApp, and most modern security protocols. ToolJiffy Text Encryptor brings military-grade AES-256-GCM encryption directly to your browser — no software installation, no cloud uploads, no accounts required.

How AES-256-GCM encryption protects your text

AES (Advanced Encryption Standard) with a 256-bit key in GCM (Galois/Counter Mode) provides two fundamental security properties simultaneously:

Confidentiality: The ciphertext is computationally indistinguishable from random noise without the correct key — no attacker can read the content without your passphrase
Integrity and Authentication: GCM mode includes an authentication tag that detects any tampering with the ciphertext — modified ciphertext will fail decryption, preventing undetected data manipulation

PBKDF2 passphrase key derivation

A cryptographic key is not derived directly from your passphrase — a weak passphrase would be vulnerable to dictionary attacks. ToolJiffy uses PBKDF2 (Password-Based Key Derivation Function 2) with:

100,000 SHA-256 iterations: Makes brute-force passphrase cracking computationally expensive — 100,000× slower than checking a raw password hash
16-byte random salt: Unique per encryption — prevents rainbow table attacks and ensures identical passphrases produce different keys
256-bit derived key: Fed into AES-GCM for the actual encryption

Self-contained Base64 ciphertext output

The encrypted output is a single Base64-encoded string containing: [16-byte salt] + [12-byte IV] + [AES-GCM ciphertext] + [16-byte auth tag]. This self-contained format means the recipient (or you, at a later time) only needs the ciphertext string and the passphrase — no separate key files to manage.

Step-by-step guide to encrypting text

Enter your text: Paste your secret notes, API keys, or private message into the plaintext field above.
Set a strong passphrase: Enter a passphrase of 16+ characters mixing uppercase, lowercase, numbers, and symbols.
Copy encrypted output: Click Encrypt and copy the Base64 ciphertext for storage or sharing.

Frequently asked questions

What encryption algorithm does ToolJiffy Text Encryptor use?

ToolJiffy uses AES-256-GCM via the Web Crypto API — the same encryption standard used by HTTPS, Signal, and WhatsApp.

How does the Text Encryptor work in browser memory?

ToolJiffy derives a 256-bit key from your passphrase using PBKDF2 with 100,000 SHA-256 iterations, then encrypts using AES-256-GCM — all via the browser's native Web Crypto API with zero server uploads.

Is my plaintext or passphrase ever sent to any cloud server?

Absolutely not. All cryptographic operations run 100% locally in your browser. Your plaintext, passphrase, and ciphertext never leave your device.

How do I share encrypted text securely with another person?

Share the ciphertext via any channel. The recipient needs the same passphrase and ToolJiffy's Text Decryptor. Share the passphrase via a separate secure channel.

Can the encrypted text be decrypted without the original passphrase?

No. AES-256-GCM with PBKDF2 key derivation is computationally infeasible to break by brute force with a strong passphrase.

What output format does the encrypted ciphertext use?

Base64-encoded, safe to copy-paste in text fields and emails. Salt and IV are prepended for self-contained decryption.

What is the difference between AES-256-GCM and AES-256-CBC?

AES-256-GCM provides authenticated encryption (confidentiality + integrity). AES-256-CBC provides confidentiality only without integrity authentication.

Is ToolJiffy Text Encryptor free without limits?

Yes. ToolJiffy is 100% free with unlimited text encryption, zero account registration, and zero server uploads.

Related security tools

Decrypt encrypted text with Text Decryptor, generate strong passwords with Password Generator, generate UUIDs with UUID Generator, or encode/decode Base64 with Base64 Encoder/Decoder.