CR Crypto Folder | APP | Gold

CR-APP Crypto Folder v1.0

Objective

CR Crypto Folder is a local-first utility designed to encapsulate and encrypt multiple files into a self-contained Virtual File System (VFS) container using the custom .crf extension. You may use CR Crypto Folder on your Android Phone or Desktop.

  • Developer: César Ramos (cr.dev.br)
  • File Size: 18.3 KB
  • Category: Standalone / Portable Utility | Local-First / Zero-Knowledge Web App
  • Format: single .html file
  • Recommended browser: Google Chrome (Android device | Windows | Linux)

The application runs 100% client-side with zero external dependencies and requires no installation or unzipping. Download the single .html file, double-click to run it instantly in any browser, and manage your data securely. It leverages the browser’s native Web Crypto API to execute military-grade symmetric encryption (AES-GCM 256-bit with PBKDF2 key derivation).

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Crypto Folder Documentation v1.0

SHA-256 Hash (V1.0): 7680D81DC42D33ACEBDAB34AE137ECCE5086122FADB19B27B44B0239929C126F (Verify authenticity of your App here)

Crypto Folder Support Terminal

Process #1. Create Folder, Inject Files and Encrypt Folder ▼
MAIN | CR-APP CRYPTO FOLDER V1.0 | JUNE 2026
Developed by César Ramos studio@cr.dev.br
======================================================
CR-APP Configuration Mode: Support ON ======================================================
PROCESS #1
1. Download CR-App
2. Enter a robust password
3. Click Allocate New Folder
4. Click Inject File to include local files to be encrypted
5. Click Compile & Save Crypto Folder
6. Rename your folder (example: cr01_encrypted_vault.crf)
7. Move your encrypted container to a local folder.
=> Note 1: Your encrypted folder will be created and downloaded as "encrypted_vault.crf".
=> Note 2: .crf format is an encrypted proprietary format of the developer.
Process #2. Decrypt Folder and Extract Files ▼
MAIN | CR-APP CRYPTO FOLDER V1.0 | JUNE 2026
Developed by César Ramos studio@cr.dev.br
======================================================
CR-APP Configuration Mode: Support ON ======================================================
PROCESS #2
1. Enter the robust password of your Folder
2. Click Mount Container
3. Select your folder (encrypted_vault.crf)
4. Extract or inject files
5. Click Compile & Save Crypto Folder
6. Rename your folder (example: cr01_encrypted_vault.crf)
7. Move your encrypted container to a local folder

Architecture Note: 18.3 KB of Pure Efficiency
Do not be fooled by the ultra-lightweight size of this monolithic application. While modern commercial alternatives require megabytes of installations and cloud dependencies, Crypto Folder achieves its full cryptographic and VFS capabilities within just 18.3 KB by leveraging the browser’s raw native Web Crypto API. It is an optimized, standalone engine engineered for maximum digital sovereignty, performance, and hardware longevity.

Understand CR APP’s Efficiency (💾):

You can fit 78 CR-Apps like this one inside a single High-Density Floppy Disk 💾 (1.44 MB). 1440/18.3=78.7.