How to Download Hex-Rays IDA 6.4 for Free
Hex-Rays IDA is a powerful and versatile binary code analysis tool that can help you reverse engineer applications, malware, firmware, and more. IDA supports a wide range of processors, file formats, debuggers, and decompilers. However, IDA is not a
cheap tool, and the latest version (8.2) can cost thousands of dollars depending on the features you need.

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Fortunately, there is a way to download an older version of IDA for free. Hex-Rays offers a free version of IDA 6.4 on their website[^2^]. This version comes with some limitations, such as:


No commercial use is allowed
Cloud-based decompiler lacks certain advanced commands
Lacks support for many processors, file formats, etc.
Comes without technical support

However, if you are just looking for a basic binary code analysis tool to kickstart your reverse engineering experience, IDA 6.4 Free might be enough for you. It supports x86 and x64 processors, PE, ELF, and Mach-O file formats, local x86 and x64
debuggers, and cloud-based x86 and x64 decompilers. It also allows you to save your analysis results and use Python scripting.

To download IDA 6.4 Free, you need to visit the Hex-Rays website[^2^] and choose the appropriate version for your operating system (Windows, Linux, or Mac). The download size is around 70-90 MB depending on the platform. After downloading the file, you
need to run it and follow the installation instructions. You will also need to accept the license agreement that prohibits commercial use of the tool.

Once you have installed IDA 6.4 Free, you can start analyzing binary code samples by opening them in the tool. You can also access some sample plugins[^1^], IDC scripts[^1^], processor modules[^1^], and other user contributions[^1^] from the Hex-Rays
website to enhance your analysis capabilities. However, keep in mind that some of these resources might not be compatible with the free version of IDA or might require additional steps to install.

If you want to learn more about IDA and its features, you can check out the official documentation[^2^], tutorials[^2^], videos[^2^], and blog posts[^2^] from Hex-Rays. You can also join the IDA community on forums[^2^], social media[^2^], and mailing
lists[^2^] to ask questions, share tips, and get updates on IDA development.

IDA 6.4 Free is a great way to get started with binary code analysis and reverse engineering without spending a fortune on a professional tool. However, if you need more advanced features, support for more processors and file formats, access to private
Lumina server, or want to use IDA for commercial purposes, you might want to consider upgrading to a newer version of IDA Pro or IDA Teams[^2^]. You can compare the different versions of IDA on the Hex-Rays website[^2^] and choose the one that suits your
needs best.




How to Use IDA 6.4 Free for Binary Code Analysis
Once you have downloaded and installed IDA 6.4 Free, you can start using it to analyze binary code samples. To open a file in IDA, you can either drag and drop it to the IDA window, or use the File menu and choose Open. You will then see a dialog box
where you can choose the processor type, file format, loading options, and analysis options for the file. You can also specify a base address, a file offset, and a loading size if you want to load only a part of the file.

After you click OK, IDA will start loading and analyzing the file. Depending on the size and complexity of the file, this process might take some time. You can monitor the progress of the analysis in the Output window at the bottom of the IDA window.
When the analysis is done, you will see a message saying "Autoanalysis subsystem has been initialized."

Now you can explore the file in various views and windows that IDA provides. The most important ones are:


The Disassembly view: This shows the disassembled code of the file in a linear or graph mode. You can switch between the modes by pressing Spacebar. You can also navigate through the code by clicking on addresses, labels, cross-references, or using
keyboard shortcuts.
The Hex view: This shows the raw bytes of the file in hexadecimal and ASCII formats. You can also edit the bytes by double-clicking on them.
The Strings view: This shows the strings found in the file. You can filter them by length, type, or encoding. You can also jump to their locations in the Disassembly or Hex views by double-clicking on them.
The Names view: This shows the names of functions, variables, labels, and other symbols found in the file. You can sort them by name, address, or type. You can also jump to their locations in the Disassembly or Hex views by double-clicking on them.
The Functions view: This shows the functions found in the file. You can sort them by name, address, size, or type. You can also jump to their locations in the Disassembly or Hex views by double-clicking on them.
The Imports view: This shows the imported functions and libraries used by the file. You can sort them by name, address, ordinal, or library. You can also jump to their locations in the Disassembly or Hex views by double-clicking on them.
The Exports view: This shows the exported functions and symbols provided by the file. You can sort them by name, address, ordinal, or type. You can also jump to their locations in the Disassembly or Hex views by double-clicking on them.

You can also use other views and windows that IDA provides, such as Segments, Structures, Enums, Bookmarks, Comments, etc. You can access them from the View menu or use keyboard shortcuts.


How to Debug Binary Code Samples with IDA 6.4 Free
IDA 6.4 Free also allows you to debug binary code samples using local x86 and x64 debuggers or cloud-based x86 and x64 decompilers. To start debugging a file in IDA, you need to open it as described above and then choose Debugger from the menu bar and
select Start Process or Attach to Process. You will then see a dialog box where you can choose the debugger type (local or cloud), specify the command line arguments and environment variables for the process, and set breakpoints and options for debugging.

After you click OK, IDA will start or attach to the process and pause it at its entry point or at a breakpoint if you have set any. Now you can use various commands and windows that IDA provides for debugging. The most important ones are:


The Debugger toolbar: This contains buttons for common debugging actions such as Run (F9), Step Into (F7), Step Over (F8), Step Out (Shift+F11), Run to Cursor (F4), Pause (Ctrl+Break), Restart (Ctrl+F2), etc.
The Registers window: This shows the values of registers for the current thread and context. You can also edit them by double-click
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