⛓️ ROP Chain Calculator

What is it?

A browser-only ROP (Return-Oriented Programming) gadget analysis tool. Load a raw helper output file from rp++ (a popular ROP gadget finder) and the tool immediately categorises, filters, and summarises every gadget — with zero server involvement and zero install required.

ROP chains are a technique for bypassing non-executable memory protections (NX/DEP) in binary exploitation. Building them from thousands of gadgets in a large .txt file is tedious — this tool tames that.

Key Features

• Parses standard rp++ output: 0xAAAAAAAA: ins ; ins ; ret format
• Automatic gadget categorisation: stack pivots, register loads, arithmetic, memory reads/writes, syscalls
• Full-text search and per-category filtering
• Downloadable analysis summary
• Runs 100% in-browser — your binary gadget file never leaves your machine
• Companion Python/PyKD scripts for WinDbg-integrated workflow (see Desktop version)

Who is it for?

Security researchers and CTF players building ROP chains for Windows or Linux exploitation. Useful anywhere you have a large rp++ output and need to quickly find the right gadget class without grepping manually.