Burp Suite’s built-in decoder component, while useful, is missing important features and cannot be extended. To remedy this, Justin Moore developed Decoder Improved, a drop-in replacement Burp Suite plugin. It includes all of decoder’s functionality while fixing bugs, adding tabs, and includes an improved hex editor. Additionally, the plugin’s functionality is straightforward to extend to accommodate any custom data encoding and decoding needs.
Decoder Improved is available for download at https://github.com/nccgroup/Decoder-Improved.
For more information on Decoder Improved, check out Justin’s blog series: