Hexer

Hexer is a free, fast, multi-tab hex editor, based on the HexCtrl, and developed with the MFC library. Hexer is mostly a hobby project developed in spare time.

Features

• View and edit Files, Disks, Partitions and Processes, up to 16EB (exabyte)
• Fully-featured Bookmarks Manager
• Fully-featured Search and Replace
• Many options to Copy/Paste to/from the clipboard
• Undo/Redo
• Modify data with Filling and many Operations options
• Ability to visually divide data into pages
• Powerful system of Templates
• And many more...

How To Build

1. Clone git repo with all submodules:
   git clone https://github.com/jovibor/Hexer.git --recurse-submodules
2. Open Hexer\Hexer.sln solution in the Visual Studio 2022 or newer

Templates

Hexer's templates is a powerful system of a data structures' description with a simple .json file.

{
    "$schema": "https://raw.githubusercontent.com/jovibor/HexCtrl/master/docs/HexCtrl.Templates.Schema.json",
    "TemplateName": "SampleTemplate",
    "Data": {
        "endianness": "little",
        "clrBk": "#999999",
        "clrText": "#FFFFFF",
        "Fields": [
            {
                "name": "MyCustomDataSingle",
                "type": "MyCustomType"
            },
            {
                "name": "CustomComplexData",
                "type": "MyCustomComplexType"
            },
            {
                "name": "ArrayOfDWORDs",
                "type": "DWORD",
                "array": 10
            },
            {
                "name": "MyCustomDataArray",
                "type": "MyCustomType",
                "array": 4
            }
        ]
    },
    "CustomTypes": [
        {
            "TypeName": "MyCustomType",
            "Fields": [
                {
                    "name": "myCustomTypeField1",
                    "type": "DWORD"
                },
                {
                    "name": "myCustomTypeField2",
                    "type": "DWORD"
                }
            ]
        },
        {
            "TypeName": "MyCustomComplexType",
            "Fields": [
                {
                    "name": "MyCustomTypeData1",
                    "type": "MyCustomType"
                },
                {
                    "name": "MyCustomTypeData2",
                    "type": "MyCustomType"
                }
            ]
        }
    ]
}

Every such file contains the following properties:

• TemplateName [mandatory, string] - the name of the template
• Data [mandatory, object] - main object that contains all template field's information
• CustomTypes [optional, array] - array of a user defined types, that can be then referenced in the type property of the Fields

CustomTypes objects are the same as Fields objects, the only difference is the TypeName property which Fields objects don't have.

Every Data or CustomType object contains Fields property with actual struct members.

Fields [array] - is an array of objects where every object represents a struct data member. Any such object can have its own Fields sub-objects, which will represent nested structs.
The Fields's properties include:

• name - [mandatory, string] - name of the field
• description - [optional, string] - field description
• type - [optional, string] - field type, such as:
  bool, char, unsigned char, byte, short, unsigned short, WORD, long, unsigned long, int, unsigned int, DWORD, long long, unsigned long long, QWORD, float, double, time32_t, time64_t, FILETIME, SYSTEMTIME, GUID, or any custom type defined in the CustomTypes section
• size - [optional, int] - size of the field in bytes, if the type field is not provided
• array - [optional, int] - size of the array, if the given field is an array of fields
• endianness - [optional, string] - field endianness, "little" or "big". By default all fields are little-endian.
• clrBk - [optional, string] - field background color
• clrText - [optional, string] - field text color

The endianness, clrBk and clrText properties that locate at the same level as the Fields property, would mean the default properties for all the Fields objects of that level and below the line, unless they explicitly redefined in the field itself.

For the available templates check the Templates directory.

License

Hexer is available under "The Hexer License", see the LICENSE file.