Otok Hex - HEX File Viewer

Otok Hex (formerly PotoHEX) is a hex file viewer for Android. Open any file and inspect its raw bytes in hex next to their text in the encoding you choose, see what the bytes under the cursor mean, and reach your files from a computer over Wi-Fi.

HEX VIEWER

• View any file byte by byte: offsets, hex and text side by side

• Text in Unicode and dozens of other encodings: Western, Central and Eastern European, Cyrillic, Greek, Turkish, Arabic, Hebrew, Thai, Vietnamese, Chinese, Japanese, Korean and more

• See the value under the cursor as integers, floating point numbers, date & time and colors

• Jump to any offset, choose the offset format and the row width

• Select a range and copy it as bytes or as characters, or share it

• Open many files at once in tabs; zoom one tab or all of them

WI-FI FILE MANAGER

• Turn on the built-in HTTP server and open the shown address in a browser on your computer

• Browse, download and upload the files of the app's folder

• Turn on "Device Storage" to reach the whole device storage, including Downloads, Documents and files of other apps

• Optional login and password; the server stops by itself after a period of inactivity

MORE

• Scan QR codes and barcodes and inspect their raw bytes

• Light and dark themes

• 8 languages: English, German, French, Spanish, Portuguese, Russian, Japanese, Chinese

PRIVACY

Everything runs on your device. No ads, no analytics, no data collection.

Made for developers, reverse engineers, students and anyone who needs to look inside a file.