Free Online Hex Editor / Hex Viewer
View any file in hexadecimal format online. Upload a file to inspect its raw bytes, offsets, and ASCII representation. Free, instant, browser-based hex viewer.
Drop any file here or click to browse
Supports any file type
Related Developer Tools
What is Hex Editor?
Hex Editor is a free online tool that displays any file's raw bytes in hexadecimal format. Upload any file to inspect its binary content, byte offsets, and ASCII representation side by side. Useful for debugging binary files, inspecting file headers, and understanding file formats.
How to Use Hex Editor
- Click "Open File" or drag and drop any file onto the upload area
- The hex dump displays the offset, hex bytes, and ASCII representation
- Each row shows 16 bytes with their hex values and printable ASCII characters
- Non-printable characters are shown as dots in the ASCII column
Features
- Displays offset, hex bytes, and ASCII columns
- Supports any file type — images, executables, documents, and more
- Displays up to 64 KB of file content
- 100% browser-based — files never leave your device
FAQ
What file types can I inspect?
Any file type works — images (PNG, JPG, GIF), executables, PDFs, ZIP archives, text files, and more. The hex viewer shows the raw bytes regardless of file type.
Why is there a 64 KB display limit?
Rendering thousands of rows in the browser can be slow. The 64 KB limit ensures the viewer stays fast and responsive. For larger files, the first 64 KB is shown, which typically includes the file header and magic bytes.
Is my file uploaded to a server?
No. All file reading happens locally in your browser using the FileReader API. Your files never leave your device.