Is this hex viewer free?

Yes, completely free with no signup and no usage limits.

Does my file get uploaded anywhere?

No. The file is read locally using the browser FileReader API. Nothing is sent to any server.

Yes. The tool is mobile-first and works on iPhone Safari and Android Chrome.

Hex Viewer

Upload any file to view its hex dump — offset, 16 hex bytes per row, and the printable ASCII representation on the right, just like xxd.

100% client-side · files never leave your device

File

Show first

Click the file picker and select any file from your device.
Choose how many bytes to display from the dropdown.
The hex dump appears automatically — read like xxd output: offset on the left, 16 hex bytes in the middle, ASCII on the right.

Is this hex viewer free?: Yes, completely free with no signup and no usage limits.
Does my file get uploaded anywhere?: No. The file is read locally using the browser FileReader API. Nothing is sent to any server.
Does it work on mobile?: Yes. The tool is mobile-first and works on iPhone Safari and Android Chrome.