Hex + ASCII Viewer

A simple and lightweight web-based tool to view the hexadecimal and ASCII representation of any file.
You can drag and drop a file or select it manually, then see its hex dump with ASCII side-by-side.
Additionally, you can download the raw text or the hex output as .txt files.

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Live Demo

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Features

• Drag & drop file support
• File selection via button
• Displays file content in hex + ASCII side-by-side
• Virtual scrolling for smooth performance with large files
• Download the raw file content as .txt
• Download the hex + ASCII output as .txt

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How to Use

1. Open the webpage in any modern browser.
2. Drag and drop a file into the dashed area or click Select File to browse.
3. The file name will appear under the drop area.
4. Scroll through the hex + ASCII view of the file contents.
5. Use the buttons to download the raw file as text or the hex output.

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Supported Browsers

• Google Chrome
• Mozilla Firefox
• Microsoft Edge
• Safari

Any browser supporting modern HTML5 APIs such as FileReader and Blob.

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Installation

No installation required. Just open the index.html file in a browser or host it on a web server.

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How It Works

• Reads the file as an ArrayBuffer
• Converts bytes into hex and ASCII representation
• Uses virtual scrolling to render only visible lines for performance
• Allows downloading results as text files

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Developer

Developed by Karrar

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License

This project is open source and available under the MIT License.