Text/File Encryptor
End-to-end client-side encryption using modern AES-GCM 256-bit cryptography powered by the native Web Cryptography API. Encrypt and decrypt text notes and files with a private password.
AES-256 Text & File Encryptor
Military-grade client-side encryption using Web Cryptography API & PBKDF2 password derivation.
Mask Client PII Before Pasting into ChatGPT
Two-way client-side token anonymization and 1-click restore.
⚙️ How This Tool Works Locally
When you use this tool on PrivacyKit, every byte is processed directly in your device RAM.
- 1. No Network Traffic: No HTTP POST or PUT requests are made to any server. Your internet can even be disconnected.
- 2. Modern Native APIs: Computation uses native HTML5 Canvas, Web Cryptography (SubtleCrypto), and client-side binary parsers.
- 3. Zero Footprint: Closing this browser tab immediately frees the memory buffer. No persistent cookies or caches remain.
💡 Frequently Asked Questions
What encryption standard is used?
It uses authenticated AES-GCM 256-bit encryption with PBKDF2/SHA-256 password derivation directly via your browser’s native window.crypto.subtle API.
Can anyone crack my encrypted file without the password?
No. Without the password, brute-forcing AES-256 with 250,000 rounds of PBKDF2 would take billions of years.
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