HEX Editor for Android

App snapshot

HEX Editor is a free mobile utility from First Row for inspecting and modifying binary files at the byte level. It provides a hexadecimal view of file contents along with tools to edit values, run quick commands, and manage multiple files from a single interface.

Notable capabilities

• Macro automation to speed repetitive edits and bind common actions to shortcuts
• Simultaneous editing of more than one file, so you can switch contexts quickly
• Integrated terminal-like editor for entering or patching code directly
• Support for multiple character encodings (eight types supported) with flexible presentation modes
• Options to display values in hexadecimal, decimal, or octal representations
• Visual customization for how addresses, text, and data are shown
• A lightweight file manager that can reveal hidden files and streamline navigation
• Built-in syntax highlighting to make patterns and structures easier to spot
• A Help section documenting additional features and configuration choices

Working with hexadecimal data

Most compiled programs and binary blobs are best viewed as sequences of bytes represented in hexadecimal. Developers and technicians use hex editors when they need to inspect raw data, apply precise fixes, or repair corruption that higher-level editors can’t access. HEX Editor exposes the underlying bytes, lets you overwrite values, and provides tools (macros, terminal input) to make targeted changes quickly.

Strengths and limitations

Pros:

• Clean, uncluttered interface that keeps file viewing and editing straightforward
• Useful automation features that reduce repetitive typing
• Multiple ways to view numeric data and select character encodings
• Handy for on-device, quick adjustments when you’re away from a desktop

Cons:

• The visual design feels dated and could benefit from a refreshed layout
• As a mobile-focused tool, it may lack some advanced desktop-grade functionality
• Occasional niche features are tucked away and require reading the Help to find

Verdict

For fast, on-the-go edits of binary files, HEX Editor is a practical choice. It combines useful editing tools, encoding flexibility, and file-management conveniences into a lightweight package. If you need a quick mobile hex editor and can tolerate an older-looking interface, it’s worth trying.