Base64 CLI Encoder/Decoder

A professional-grade Python command-line tool for encoding and decoding files using Base64.
Designed with clean CLI interface, streaming for large files, and proper error handling.

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Features

• Encode any file to Base64
• Decode Base64 back to original file
• Memory-efficient chunk-based processing (handles large files)
• Clean CLI interface using argparse
• Works with both text and binary files
• Built-in error handling
• Includes basic test suite

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Tech Stack

• Python 3
• argparse
• base64
• File I/O

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Decode a file python base64_tool.py --decode encoded.txt output.txt

Example python base64_tool.py --encode message.txt encoded.txt python base64_tool.py --decode encoded.txt decoded.txt

Running Tests python tests.py

What this project demonstrates

Command-line tool development

File handling (binary + text)

Encoding systems (Base64)

Memory-efficient streaming

Clean code structure

Error handling

Basic test-driven validation

Author

Namitha R GitHub: https://github.com/namitha2526