Windows
Compatible applications
Quick Facts
Basic information about this file format
Extension
.HEX
File Type
Intel HEX File
Category
Data
Best first step
Use compatible software
Quick Summary
A practical overview of the .hex file format
The Intel HEX file format is a widely used ASCII text file format for conveying binary data, primarily for programming microcontrollers, EPROMs, and other programmable devices. It represents binary data in a human-readable hexadecimal format. Each line in a HEX file represents a record, which conta…
File extension
.HEX
File type
Intel HEX File
Category
Data
Recommended action
Open with a trusted compatible app
How to open a .hex file
Start with a trusted app that supports this format
- Check the file extension carefully and confirm that the file name really ends with .hex.
- Use software that supports this file type. If one app does not work, try another compatible program for the same platform.
- Update the application if the file was created by a newer version of the software.
- Scan files from unknown sources before opening them, especially documents, archives, scripts, installers, and executable files.
What is a .hex file?
File extension details and usage information
The Intel HEX file format is a widely used ASCII text file format for conveying binary data, primarily for programming microcontrollers, EPROMs, and other programmable devices. It represents binary data in a human-readable hexadecimal format. Each line in a HEX file represents a record, which contains information such as the starting address for the data, the number of data bytes, the actual data bytes in hexadecimal representation, and a checksum to ensure data integrity. The format is designed to be simple to parse and generate, making it suitable for transferring data between different development tools and programming devices. HEX files are commonly used in embedded systems development for storing firmware, configuration data, and other types of binary information. The format allows for specifying memory addresses, enabling precise placement of data within the target device's memory space. Different record types within the HEX file allow for specifying the start address, end of file, and extended address information, supporting memory spaces larger than 64KB. The checksum ensures that the data has not been corrupted during transmission or storage. The simplicity and widespread support make the Intel HEX format a reliable choice for programming embedded systems.
Software Compatibility
Programs that may open or work with .hex files
macOS
Compatible applications
Linux
Compatible applications
Mobile
Mobile applications
Can .hex files be converted?
Options for saving or exporting this file to another format
In many cases, a .hex file can be converted by opening it in compatible software and using an option such as Save As, Export, or Convert. The available output formats depend on the file type and the application used.
- Use the original software that created the file when possible.
- Check whether the application supports exporting to common formats.
- Be careful with online converters when working with private, business, or sensitive files.
- If conversion fails, the file may be corrupted, incomplete, encrypted, or not actually a .hex file.
Why can't I open a .hex file?
Common reasons this file type may not open correctly
Wrong software
The file may require a specific program that supports the .hex format.
Incorrect extension
The file extension may have been renamed manually, even though the actual file format is different.
Corrupted file
The file may be incomplete, damaged during download, or transferred incorrectly.
Outdated app
Your software may need to be updated before it can open newer versions of this file format.
Frequently Asked Questions
Common questions about .hex files
To open a .hex file, use software that supports this file format.
- Intel HEXedit
- HxD
- Notepad++ with HEX-Editor plugin
- MiniHex
- Various microcontroller IDEs (e.g., Keil uVision, IAR Embedded Workbench)
Open the file in compatible software and look for options such as Save As, Export, or Convert. If no export option is available, the file may require a specialized converter or the original application that created it.
- Verify that the file extension is correct.
- Install or update compatible software.
- Try another application that supports this format.
- Check whether the file is corrupted, incomplete, or encrypted.
A file extension alone does not guarantee whether a file is safe or unsafe. Only open files from trusted sources, scan unknown files before opening them, and be especially careful with executable, script, archive, and document files.
File safety tips
Use caution with unknown files
Only open files from trusted sources. Before opening a .hex file, scan it with antivirus software, verify that the file extension is expected, and avoid running unknown executable, installer, macro-enabled document, or script files.