: Disassembles published methods into commented Assembly (ASM) code, including references to strings, imported functions, and class method calls.
The original developer stopped working on DeDe around 2006. However, the open-source community has kept it alive via patches. The rise of LLM-based reverse engineering (like ChatGPT/Gemini analyzing assembly) has made pure decompilers less critical.
In the golden age of Rapid Application Development (RAD), Borland Delphi reigned supreme. Its native compilation, speed, and elegant Object Pascal syntax made it a favorite for building everything from enterprise accounting software to shareware games. However, with the passage of time, a unique problem emerged: .
procedure TForm1.Button1Click(Sender: TObject); begin ShowMessage('Hello'); end; delphi decompiler dede
The DeDe Delphi Decompiler holds a permanent place in the hall of fame for reverse engineering utilities. It proved that complex, natively compiled object-oriented binaries could be structured and understood logically. While modern analysts working with 64-bit applications or RAD Studio layouts will need to utilize modern tools like IDR or Ghidra, studying DeDe provides timeless insights into how the Delphi engine ticks under the hood.
DeDe is technically more of a high-level structural analyzer and disassembler than a pure decompiler. It does not output readable Delphi Pascal source code ( .pas files).
In event-driven programming, tracking down what happens when a user clicks a button can be difficult in a standard disassembler. DeDe automatically locates the published methods and event handlers (such as OnClick , OnCreate , or OnShow ). It maps these events directly to their physical memory addresses inside the binary, saving reverse engineers hours of manual tracing. 3. Class and Object Tree Visualizer However, with the passage of time, a unique problem emerged:
: It does not recreate .pas files with original logic.
, which contain the layout, properties, and components of the application's user interface. These can often be re-opened and edited within the Delphi IDE. Event Handler Mapping
: It is most effective for 32-bit executables from older Delphi versions (up to version 6 or 7). You can see the exact coordinates
Given a button click event in original source:
This public link is valid for 7 days and shares a thread, including any personal information you added. This link or copies made by others cannot be deleted. If you share with third parties, their policies apply. Can’t copy the link right now. Try again later.
Delphi stores form layouts as binary resources. DeDe extracts these resources and converts them back into standard text-based DFM (Delphi Form) files. You can see the exact coordinates, fonts, and properties of every visual element. Core Features and Interface
Delphi's compiled artifacts still carry a lot of history: class names in RTTI, form layouts in DFMs, and traces of developer intent in control flow. Tools like dede help pry that history open. But the final restoration is a craft: part detective work, part engineering, and — when successful — a rewarding recovery of code thought lost to time.