A structured binary editor for reverse engineering — inspect raw bytes as typed structs, arrays, and pointers.

Built from scratch as a modern replacement for ReClass.NET and ReClassEx

Download · Build Instructions · MCP Integration · Alternatives

Reclass helps you inspect raw bytes and interpret them as types (structs, arrays, primitives, pointers, padding) instead of just hex. It is essentially a debugging tool for figuring out unknown data structures — either at runtime from a live process, or from a static source like a binary file or crash dump.

Built with C++17, Qt 6 (Qt 5 also supported), and QScintilla. The entire editor surface is rendered as formatted plain text with inline editing, fold markers, and hex/ASCII previews.

Features

• Structured binary view — render raw bytes as typed fields (integers, floats, pointers, vectors, matrices, strings, booleans, padding)
• Struct & array nesting — define nested structs and arrays with collapsible fold regions
• Enums & bitfields — define enums and bitfield types with named members, inline editing, and auto-sort
• Inline editing — click to edit type names, field names, values, and base addresses directly in the editor
• Undo/redo — full undo history for all mutations via command stack
• Multi-document tabs — open multiple projects simultaneously in MDI sub-windows
• Split views — multiple synchronized editor panes over the same document
• Type autocomplete — popup type picker when changing field kinds
• Hex + ASCII margins — raw byte previews alongside the structured view
• Value history & heatmap — track value changes over time with color-coded heat indicators
• Disassembly preview — hover over code pointers to see decoded instructions
• C/C++ code generation — export structs as compilable C/C++ headers
• Import / export — PDB import (Windows), ReClass XML import/export, C/C++ source import
• Themes — built-in theme editor with multiple presets
• MCP bridge — expose all tool functionality to AI clients via Model Context Protocol
• Plugin system — extend with custom data source providers via DLL plugins; the following ship by default:
  • Process plugin — access memory of live processes on Windows and Linux
  • WinDbg plugin — access data sources live in WinDbg debugging sessions
  • ReClass.NET compatibility layer — load existing .NET and native ReClass.NET plugins

Roadmap

• Process memory section enumeration
• Address parser auto-complete
• Safe mode
• File import for other Reclass instances
• Expose UI functionality to plugins
• iOS/macOS support
• Display RTTI information

Data Sources

• File — open any binary file and inspect its contents as structured data
• Process — attach to a live process and read its memory in real time
• Remote Process — read another process's memory via shared memory
• WinDbg — load .dmp crash dump files or connect to live debugging sessions

Screenshots

MCP Integration

Built-in Model Context Protocol bridge via ReclassMcpBridge. The server starts automatically on launch and can be toggled from the File menu. It exposes all tool functionality to any MCP-compatible client (e.g. Claude Code). A standalone stdio-to-pipe bridge binary is built alongside the main application. To connect, add this to your MCP client config (e.g. .mcp.json):

{
  "mcpServers": {
    "ReclassMcpBridge": {
      "command": "path/to/build/ReclassMcpBridge",
      "args": []
    }
  }
}

Build

Prerequisites

• Qt 6 (or Qt 5) with MinGW — Qt Online Installer (select MinGW kit + CMake/Ninja from the Tools section)
• CMake 3.20+ — cmake.org (bundled with Qt)
• Ninja — bundled with the Qt installer

Quick Build

git clone --recurse-submodules https://github.com/IChooseYou/Reclass.git
cd Reclass
.\scripts\build_qscintilla.ps1
.\scripts\build.ps1

The build script auto-detects your Qt install location.

Manual Build

1. Clone with --recurse-submodules (or run git submodule update --init --recursive after cloning)
2. Build QScintilla: qmake + mingw32-make in third_party/qscintilla/src
3. Configure and build:

   cmake -B build -G Ninja -DCMAKE_PREFIX_PATH=/path/to/Qt/6.x.x/mingw_64
   cmake --build build
   

4. Optionally run windeployqt on the output executable

Running Tests

ctest --test-dir build --output-on-failure

Alternatives

• ReClass.NET
• ReClassEx

_{MIT License}