Hex viewer — inspect bytes as hex and ASCII
View a file or text as a classic hex dump — offset, hex bytes and ASCII. It runs entirely in your browser (0 uploads, works offline).
How to use it
- Choose a file or paste text.
- Read the offset / hex / ASCII dump.
- Copy or Download it.
FAQ
How do I view a file in hex for free?
Choose a file (or paste text) and this page renders a hex dump with the byte offset, the hex values and the printable ASCII beside them — on your device with no upload.
Is my file uploaded anywhere?
No. The bytes are read and formatted entirely in your browser and nothing is transmitted or stored, which you can verify by turning off your Wi-Fi — the whole point of an on-device hex viewer.
What does the ASCII column show?
Printable characters are shown as-is and non-printable bytes as dots, so you can spot text, headers and structure inside binary data.
How much does it show?
It shows the first several kilobytes, which is enough to read a file's header and structure without loading huge files into the tab.
Limits
Displays the leading bytes as a read-only dump; it does not edit bytes or parse specific formats.
Related
The file type identifier names the format; the file checksum verifier checks integrity.
Bookmark this page (Ctrl+D, or ⌘D on Mac) or install the app — it works offline the next time you need it.