# hexyl

> Terminal hex viewer that colors bytes by category: NULL, printable ASCII, whitespace, other ASCII, and non-ASCII.

Stars: 10.3k · Language: Rust · License: Apache-2.0 · Categories: Dev Tools

- Repository: https://github.com/sharkdp/hexyl
- Page: https://www.trmn.sh/tools/hexyl

## Install

- Homebrew: `brew install hexyl`
- apt: `sudo apt install hexyl`
- Cargo: `cargo install hexyl`

## Overview

hexyl is a hex viewer for the terminal. It prints the bytes of a file or input as a hex dump with a file offset column, and uses colored output to distinguish five categories of bytes: NULL bytes, printable ASCII characters, ASCII whitespace characters, other ASCII characters, and non-ASCII bytes. This makes structure in binary data, such as runs of zeros or text embedded in binary, visible at a glance.

Colors are configurable through environment variables: HEXYL_COLOR_ASCII_PRINTABLE, HEXYL_COLOR_ASCII_WHITESPACE, HEXYL_COLOR_ASCII_OTHER, HEXYL_COLOR_NULL, HEXYL_COLOR_NONASCII, and HEXYL_COLOR_OFFSET. Values can be any of the 8 standard terminal colors, their "bright" variants (e.g. bright blue), or RGB hex such as #abcdef.

hexyl is written in Rust and is packaged for many platforms, including Debian/Ubuntu, Fedora, Arch, Void, Gentoo, macOS (Homebrew, MacPorts), the BSDs, Termux, Nix, Guix, snap, and Scoop. On Windows, it needs a terminal that supports ANSI escape sequences, such as Windows Terminal. It is aimed at developers, reverse engineers, and anyone inspecting binary files or data from the command line.

### Installation

```bash
# via Homebrew
brew install hexyl
```

```bash
# via apt
sudo apt install hexyl
```

```bash
# via Cargo
cargo install hexyl
```

![hexyl hex dump output](https://media.trmn.sh/cached/061dbfa67b52d20d84881cb56802d121fc9cbc366720a9a9dc7b25aa5bec1f67.png)

![hexyl byte category coloring](https://media.trmn.sh/cached/6e7d9927d4f443d26e6ccdeaa8ceb1bc9418725e7c772ef1803df6c25e868565.png)

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Canonical: https://www.trmn.sh/tools/hexyl