Open & inspect
.VHDL files online

viewer.online/vhdl can analyze .VHDL files to identify the exact format and creator software, inspect the file structure, extract readable text, and check whether an online preview is available.

What is a VHDL file?

A .VHDL file is a text-based source code file written in the VHSIC Hardware Description Language. Electronic engineers use this language to describe the behavior and structure of digital logic circuits, such as Field Programmable Gate Arrays (FPGAs) and Application-Specific Integrated Circuits (ASICs). The format is governed by the IEEE 1076 standard. Because it is plain text, you can open it with standard code editors, but specialized software is required to simulate or synthesize the hardware design.

How to open VHDL files?

You can read and edit .VHDL files using any text editor, such as Notepad++, Visual Studio Code, or Sublime Text. To simulate or compile the code into hardware logic, you need specialized electronic design automation (EDA) software. Popular EDA tools include Xilinx ISE (now replaced by AMD Vivado), Intel Quartus Prime, and the open-source GHDL simulator.

Best practices and troubleshooting

When working with .VHDL files, ensure your text editor supports VHDL syntax highlighting. This makes the code much easier to read. If a file fails to compile in your EDA tool, check the text encoding. .VHDL files should typically use standard UTF-8 or ASCII encoding. Be aware that the shorter extension .VHD is also commonly used for VHDL files, but .VHD can also represent a Virtual Hard Disk file.

Summary

If you do not have hardware simulation tools installed, viewer.online/vhdl is useful for identifying, inspecting, and understanding .VHDL files without installing software or dealing with compatibility problems. It provides a quick way to read the source code directly in your browser.