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Hopper Disassembler is a developer tool designed to assist you in your static analysis of executable files. Thanks to Hopper Disassembler, you can analyze function’s prologues and extract procedural data like basic blocks and local variables. The Navigation Bar is located just above the assembly and enables you to effortlessly navigate through the file by moving the little red arrow. The used color scheme helps you locate various type given to the bytes of the file.

Native
Hopper is perfectly adapted to the environment. The macOS version makes full use of the Cocoa framework, and the Linux version makes use of Qt 5.

Procedures
Hopper analyzes function's prologues to extract procedural information such as basic blocks and local variables.

Extensible
With the Hopper SDK, you'll be able to extend Hopper's features, and even write your own file format and CPU support.

Control Flow Graph
Once a procedure has been detected, Hopper displays a graphical representation of the control flow graph. You can even export a PDF.

Scriptable
Most of the Hopper features can be invoked from Python scripts, giving you the ability to transform a binary in any way you want.

Debugger
Hopper can use LLDB or GDB, which lets you debug and analyze the binary in a dynamic way (Intel CPU only).

Objective-C
Even if Hopper can disassemble any kind of Intel executable, it does not forget its main platform. Hopper is specialized in retrieving Objective-C information in the files you analyze, like selectors, strings and messages sent.

Decompiler
Based on an advanced understanding of the executable Hopper can present a pseudo-code representation of the procedures found in an executable.

Swift
This new version of Hopper is able to decode the mangled Swift names. No more cryptic names!

Tabs
Use tabs to create workspaces with different representations of the file.

Semantic Coloration
The analysis performed by Hopper separates code from data, memory accesses from stack variables… And to help you understand the various discovered objects, Hopper will use a different color to each of them.

Types
Use the embedded type editor to create your own structures, unions, or enumerated types. It greatly helps the understanding of the code to use symbols, rather than raw numbers.