Is this binary 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.

Binary Viewer

Upload any file to view its bytes as 8-bit binary strings. Useful for inspecting magic bytes, file signatures, and understanding binary formats.

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 binary output appears automatically — each row shows the byte offset, 8-bit binary value, and the hex equivalent.

Is this binary 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.