バイナリビューアー
任意のファイルの生バイナリ（0と1）表現を表示。マジックバイトやバイトパターンの確認に。
100% client-side · files never leave your device
How to use
- 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.
Related file tools
- Hex Viewer — view files as classic xxd hex dump
- File Hash Compare — compare SHA-256 of two files
- File Extension List — identify file types
よくある質問
- 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.
Last updated: By jarvisbox