Open-source alternatives to Buby

PyBurp is a Burp Suite extension that provides predefined Python functions for HTTP/WebSocket traffic modification, context menu registration, Intruder payload processing, passive/active scanning, and Collaborator interaction. You can also directly access Montoya API in your Python scripts.

Portable and flexible web application security assessment tool.It parses Burp Suite log and performs various tests depending on the module provided and finally generate a HTML report.

Nonce Tracker BurpExtender.java ABlakemore http://www.directdefense.com

OAuth plugin for Burp Suite Extender

pefile is a Python module to read and work with PE (Portable Executable) files

Python object interface to requests/responses recorded by Burp Suite

IDAPython project for Hex-Ray's IDA Pro

Burp suite extension to build and handle collaborator interaction.

A Burp Extender plugin, that will make binary soap objects readable and modifiable.

Pre-Script and Post-Script like Postman extension for Burpsuite

Burp Extender plugin that generates a sitemap of a website using Wayback Machine

This decodes fastinfoset encoded requests from client -> burp so they can be read/scanned/intruded etc, then encodes the requests again from burp -> server.

Copy as requests plugin for Burp Suite

Sourced from gist: https://gist.github.com/mwielgoszewski/7026954

Copy as requests plugin for Burp Suite

A Burp Extender plugin that will allow you to tamper with requests containing compressed, serialized Java objects. Useful in case you want to pen-test a Java thick (or fat) client application.