Your text never leaves your browser
Your text is encrypted locally using AES-256-GCM before it can be copied or shared.
Free Browser Encryption
Encrypt Text Online - Private, Secure, and Completely Local
Protect passwords, personal notes, API keys, recovery codes, or confidential messages without uploading them anywhere. Encrypti0n performs every encryption and decryption operation directly in your browser, so your plaintext stays on your device.
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AES-256 text encryption
Encrypt Text Online
Your text never leaves your browser - Copy and share encrypted text instantly - Built-in protection against tampering
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Your text is encrypted locally using AES-256-GCM before it can be copied or shared.
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Argon2id derives a unique encryption key from your password, making brute-force attacks significantly more difficult.
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UTF-8 support preserves emojis, symbols, and multilingual text without losing formatting.
Built for trust
Designed to keep things secure
Everything is designed to help you complete the task with as little friction as possible.
Copy and share encrypted text instantly
Argon2id derives a unique encryption key from your password, making brute-force attacks significantly more difficult.
Built-in protection against tampering
UTF-8 support preserves emojis, symbols, and multilingual text without losing formatting.
Try it out
How text encryption works
Encrypting text only takes a few seconds and follows the same simple process every time.
Paste or type your sensitive text into the app.
Choose a strong, unique password.
Encrypti0n derives a secure encryption key with Argon2id and encrypts your text using AES-256-GCM.
Copy the encrypted output and share it safely. Send the password separately for better security.
What to expect
Helpful information before you begin
- Your text is encrypted locally using AES-256-GCM before it can be copied or shared.
- Argon2id derives a unique encryption key from your password, making brute-force attacks significantly more difficult.
- UTF-8 support preserves emojis, symbols, and multilingual text without losing formatting.
- The app automatically detects whether pasted content is encrypted and switches between encryption and decryption without requiring manual mode selection.
Good to know
Security and privacy notes
- If you lose your password, your encrypted data cannot be recovered.
- For the best security, send the encrypted text and the password through separate communication channels.
Best next step:
Encrypt Your Text and keep passwords unique, long, and stored safely.
Real-world use cases
Where Encrypt Text Online fits into everyday workflows
Security works best when it supports the task people are already trying to complete.
Securely sharing passwords or API keys
Encrypt the secret before sending it through chat, email, or a ticket. Share the password through a separate trusted channel.
Protecting personal notes before storing them
Turn private notes into encrypted text before saving them in cloud notes, documents, or shared folders.
Sending confidential messages through email or chat
Protect sensitive messages before they enter communication tools that may keep long histories.
Encrypting recovery codes and backup information
Store recovery details as encrypted text so they are not exposed as readable notes or documents.
Learn more
Why encrypt text before sharing it?
Many everyday messages contain information that should not be sent as plain text. Passwords, recovery codes, API keys, confidential notes, and personal information are often shared through email, messaging apps, or support systems. Encrypting the content first ensures that anyone intercepting the message only sees unreadable ciphertext. Only someone with the correct password can restore the original text.
FAQ
Questions people ask before using this
Yes. Whether you are protecting a single password, a recovery phrase, or a longer document, Encrypti0n uses the same secure client-side encryption process.
No. Every encryption and decryption operation happens locally in your browser. Your plaintext is never uploaded or stored on our servers.
The password cannot be recovered, and neither can your encrypted text. We recommend storing important passwords in a trusted password manager.
No. AES-256-GCM authenticates encrypted data before it is decrypted. If the ciphertext has been changed, decryption fails instead of displaying incorrect or modified content.
Yes. Encrypti0n is ideal for protecting sensitive information before sharing or storing it. Follow your organisation's security policies and rotate credentials whenever appropriate.
Yes. Encrypti0n uses UTF-8 encoding, allowing multilingual text, emojis, and special characters to be encrypted and restored accurately.
Share the encrypted message through one communication channel and the password through another. Separating the two reduces the risk of unauthorised access.
Get started
Encrypt Your Text
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