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🔐 FileCryptor – Secure File & Folder Encryption Tool (Python + GUI)

#cryptor #encryption #tool #application

If you’ve ever needed a simple, secure way to encrypt files and folders, this project might be exactly what you’re looking for.

Introducing FileCryptor — a modern Python desktop app that lets you encrypt and decrypt files with strong password-based security, all wrapped in a clean GUI.

👉 Get it here: https://gum.new/gum/cmkncobmj001h04jr8ecl39l9

🚀 What is FileCryptor?

FileCryptor is a desktop encryption tool built with:

🐍 Python
🖼 Tkinter + ttkbootstrap UI
🔐 cryptography library (Fernet + PBKDF2HMAC)

It allows you to:

Encrypt files & folders recursively
Decrypt them safely with the same password
Use drag & drop for fast workflows
Monitor progress in real time
🔑 Why This Tool Matters

Security tools are often:

Too complex ❌
Too technical ❌
Or just ugly ❌

FileCryptor focuses on:

✔ Simplicity
✔ Strong encryption
✔ Clean UI
✔ Real usability

🔐 How Encryption Works

This tool uses industry-standard cryptography:

  1. Password-Based Key Derivation Uses PBKDF2HMAC (SHA-256) 390,000 iterations Adds strong resistance against brute-force attacks
  2. Random Salt Per File Each file gets a unique 16-byte salt Prevents identical files from producing identical outputs
  3. Secure Encryption Uses Fernet (AES-based encryption) Ensures confidentiality + integrity ✨ Key Features 📁 Encrypt Entire Folders Recursively processes all files No need to manually select each file 🖱 Drag & Drop Support Just drop files/folders into the app Instant queueing 🔐 Password Protection Password confirmation dialog Strength indicator: Weak Medium Strong ⏱ Real-Time Progress Progress bar + logs Smooth UI thanks to threading ❌ Cancel Anytime Stop long operations safely 🧹 Clean Logs Built-in log viewer Clear logs with one click 💡 Example Workflow Drag a folder into FileCryptor Click Encrypt Files/Folders Enter a strong password Files are encrypted with .enc extension

Later:

Select encrypted files
Click Decrypt
Enter the same password
Files are restored 🎉
🧠 Smart Design Choices
🔄 Multithreading

Keeps the UI responsive during long operations.

🔍 Recursive File Handling

Automatically processes nested directories.

🛑 Safe Decryption
Skips invalid files
Prevents crashes on corrupted data
📦 Supported Files

Short answer: everything.

You can encrypt:

📄 Documents (PDF, DOCX, TXT)
🖼 Images (PNG, JPG)
🎵 Media (MP3, MP4)
💻 Code (PY, JSON, CSV)

If it’s a file → it works.

🛠 Tech Stack
Python 3
Tkinter
ttkbootstrap
cryptography
tkinterdnd2
🔥 Code Highlights
Secure Key Derivation

def derive_key(password: str, salt: bytes) -> bytes:
    kdf = PBKDF2HMAC(
        algorithm=hashes.SHA256(),
        length=32,
        salt=salt,
        iterations=390_000,
        backend=default_backend()
    )
    return base64.urlsafe_b64encode(kdf.derive(password.encode()))
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Encryption Flow

salt = os.urandom(16)
key = derive_key(password, salt)
fernet = Fernet(key)
encrypted_data = fernet.encrypt(data)
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Decryption Flow

salt = data[:16]
encrypted_data = data[16:]
key = derive_key(password, salt)
fernet = Fernet(key)
decrypted_data = fernet.decrypt(encrypted_data)
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⚠️ Important Notes
🔑 If you lose your password → your data is gone
There is no recovery mechanism (by design, for security)
📥 Get FileCryptor

👉 Download here:
https://gum.new/gum/cmkncobmj001h04jr8ecl39l9

💬 Final Thoughts

FileCryptor is a great example of how you can combine:

Security 🔐
Usability 🧑‍💻
Clean UI 🎨

…into a practical tool people can actually use.

If you're building Python desktop apps, this project is also a solid reference for:

Tkinter architecture
Threading patterns
Real-world cryptography usage

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