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Secure Your Sensitive Data with our free Client-Side Vault Generator
Create a portable, encrypted fortress for your most sensitive information with our free Client-Side Vault Generator. This tool allows you to transform any text or message into a standalone, password-protected HTML file. By utilizing high-grade AES-GCM encryption directly in your browser, your data never leaves your device, ensuring total privacy from servers, hackers, and prying eyes.
How to Create an Encrypted Vault
- 01. Input Message: Type or paste the sensitive information you wish to protect into the text area.
- 02. Set Password: Choose a strong, memorable password. This is the only key that can unlock your data.
- 03. Generate File: Click "Generate Vault" to run the local encryption process instantly.
- 04. Save Securely: Download the resulting HTML file. You can now store it anywhere or send it as a secure attachment.
Frequently Asked Questions
Is my password or message sent to a server?
No. The encryption happens entirely within your browser using the Web Crypto API. Neither your password nor your secret message ever touches our servers.
What happens if I forget my password?
Because this is a "zero-knowledge" tool, there is no "reset password" feature. If the password is lost, the data inside the vault cannot be recovered.
How secure is the encryption used?
We use AES-GCM 256-bit encryption, which is the industry standard for secure data. It is combined with PBKDF2 key derivation to protect against brute-force attacks.
Can the generated HTML file be opened offline?
Yes. The vault file is completely self-contained. You can open it in any modern web browser without an active internet connection to decrypt your message.
Is there a limit to how much text I can encrypt?
While there is no hard limit, the tool is optimized for text-based messages, credentials, and notes. Extremely large amounts of data may slow down the browser's local processing.
Are the files compatible with mobile browsers?
Yes. As long as the mobile browser supports the modern Web Crypto API (which includes Safari, Chrome, and Firefox), the vault can be decrypted on your phone or tablet.