CodExt – Encode/decode anything with Python
Last Updated :
23 Jul, 2025
Encoding and Decoding are important factors for secure communication. To save confidential data from attackers, we need to encode the information. So we can use the CodExt tool which is developed to encode and decode secret information for secure communication. CodExt tool is developed in the python language and its variable on the Github platform. It provides 120+ new codecs and also features a guessing mode for decoding multiple layers of encoding and CLI tools for convenience.
Note: Make Sure You have Python Installed on your System, as CodExt is a python-based tool. Click to check the Installation process: Python Installation Steps on Linux
Installation of CodExt Tool on Kali Linux OS
Step 1: Check the Python3 existence on your Linux machine.
python3
Step 2: Now use the following command to get the CodExt package tool on your system using PIP manager.
sudo pip install codext
Step 3: All the dependencies have been installed in your Kali Linux operating system. Now use the following command to run the tool and check the help section.
codext -h
Working with CodExt Tool on Kali Linux OS
Example 1: Main CLI tool
echo "GeeksforGeeks" | base122
In this example, we are encoding the "GeeksforGeeks" string in base122 format.
Example 2: Base100 type encoding
echo "GeeksforGeeks" | codext encode base100
In this example, we are encoding the "GeeksforGeeks" string in Base100 format.
Example 3: Chaining codecs
echo -en "GeeksforGeeks is a Computer Tech Community" | codext encode reverse
In this example, we are encoding the input string by reversing the string.
Example 4: Using macros
codext add-macro my-encoding-chain gzip base63 lzma base64
In this example, we are adding our own macro encoding definition.
echo -en "GeeksforGeeks" | codext encode my -encoding-chain
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