collect 1.2.3

The Developers Repertoire

example/README.md

Hex Editor Examples

Hex Editor App

A fully functional hex editor application with file opening capabilities.

Features

• Open any file - Click the folder icon or the "Open File" button
• File information - View file name, path, and size
• Interactive hex viewer - Click bytes to inspect them
• Data inspector - See selected bytes as Int8, Int16, Int32, Float32, etc.
• Endianness toggle - Switch between Little Endian and Big Endian
• Professional interface - Clean, modern UI with Material 3 design

Running the App

flutter run example/hex_editor_app.dart

Or on Windows:

flutter run -d windows example/hex_editor_app.dart

Usage

1. Open a file: Click the folder icon in the app bar
2. Browse: Navigate to any binary file (executables, images, documents, etc.)
3. Inspect: Click on any byte in the hex view to see it in the inspector
4. Toggle endianness: Use the checkbox in the inspector to switch between little and big endian
5. View file info: Click the info icon to see detailed file information
6. Close file: Click the X icon to close the current file

Supported Files

The hex editor can open any file type:

• Executables (.exe, .dll, .so)
• Images (.png, .jpg, .gif, .ico)
• Documents (.pdf, .docx, .xlsx)
• Archives (.zip, .rar, .7z)
• Database files (.db, .sqlite)
• Custom binary formats
• Text files (.txt, .json, .xml)
• And literally any other file!

Tips

• Large files are handled efficiently with scrolling
• The inspector shows multiple data type interpretations simultaneously
• All values in the inspector are selectable for copying
• Use the endianness toggle to understand how multi-byte values are stored
• The ASCII column helps identify text strings in binary data

Platform Support

This example works on:

• ✅ Windows
• ✅ macOS
• ✅ Linux
• ✅ Android
• ✅ iOS
• ✅ Web (with file picker support)