Kryptonite: Secure File Vault

Content rating
Everyone
10+
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Content rating
Everyone
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About this app

Kryptonite is the ultimate standalone cryptographic suite engineered for total protection of your confidential data, documents, passwords, and media files against unauthorized access. The application operates entirely offline, requires no internet connection, and never transmits data to external servers, guaranteeing absolute isolation of your cryptographic perimeter.

Core Modules and Features:

1. EMERGENCY PANIC MODE (BORDER CROSSING)
One-tap instant storage lockdown. The module reads your personal configurations and immediately activates a high-speed native C++ shredder. Operating at the Linux kernel level, the engine traverses directory trees to encrypt all files within selected categories (Images, Video, Audio, Downloads) using the military-grade AES-256-GCM algorithm, securely deleting the originals. When turned off, files are instantly restored using protected, isolated SQLite logs.

2. STEGANOGRAPHY (EOF INJECTION)
Conceal the very existence of your secret texts or tokens. This module injects encrypted data into the binary tail (past the technical IEND marker) of any donor image. The resulting file remains a perfectly valid, viewable image in any standard gallery while carrying a hidden container inside. Features smart byte correction: upon modification, the old crypto-tail is automatically trimmed, preventing any file size inflation.

3. FILE AND TEXT CRYPTOGRAPHERS
A streamlined step-by-step pipeline for targeted encryption of individual files of any size without causing RAM overhead, alongside secure text note protection. Supports cascaded encryption mode, allowing you to stack multiple independent cryptographic layers onto a single object. During decryption, layers are stripped in strict reverse order to preserve binary structure integrity.

4. THE KEY RING (KEYSTORE)
A local manager for your 32-byte secret Fernet tokens. Generate cryptographically strong keys, customize their aliases, copy them to the clipboard, or safely share and import external tokens via a built-in vertical QR scanner operating inside a fluid, animated dialog window.

Forensic-Grade Security:
The entire user interface is hardware-hardened with the FLAG_SECURE flag, completely blocking screen recording, casting, and screenshots across all app modules. A step-by-step onboarding permission manager (Camera, Media, All Files Access) guarantees flawless operation of the native C++ pipeline across Android versions 11 to 16.

Secure your data at the sector level. Get Kryptonite.
Cascaded file encryption, EOF steganography and emergency storage lock.
Updated on
Sep 18, 2026

Data safety

Safety starts with understanding how developers collect and share your data. Data privacy and security practices may vary based on your use, region, and age. The developer provided this information and may update it over time.
  • No data shared with third parties
    Learn more about how developers declare sharing
  • No data collected
    Learn more about how developers declare collection