hex

A fast, cross-platform base converter and expression calculator written in Rust.

Features

• Smart base parsing: 0x hex, 0b binary, 0o octal, h suffix hex
• Expression evaluation with operators and aliases (and, or, xor, shl, shr, x)
• Color input #RGB / #RRGGBB with preview
• Interactive REPL with variables and history
• Output format toggles and one-line mode
• Bilingual messages (auto-detect, --lang override)

Install

cargo build --release

Binary will be in target/release/hex (or hex.exe on Windows).

Usage

hex [FLAGS/OPTIONS] [EXPRESSION]

Examples

hex 0x15
hex 0x15+100
hex 0x1A or 0b100 --bin
hex "0x50 & 0xFF"
hex --dec 0 --bin 1010
hex --oneline 255
hex "#FF5733"

Options

• -b, --bin[=0|1] show/hide binary
• -o, --oct[=0|1] show/hide octal
• -a, --all show all formats (Dec/Hex/Oct/Bin/Char)
• --dec[=0|1] show/hide decimal
• --hex[=0|1] show/hide hexadecimal
• -c, --char show character (single byte)
• -l, --oneline print in one line
• -i, --interactive enter REPL
• --lang <LANG> en/cn/zh/zh-CN
• -h, --help help
• -V, --version version

REPL

Start by running hex or hex -i.

Commands:

• :bin [on|off], :oct [on|off], :dec [on|off], :hex [on|off], :char [on|off]
• :oneline [on|off]
• :all
• :vars
• :? / :help
• :quit / :q

Examples:

hex > let a = 0xFF
hex > a + 1
hex > _ * 2

License

MIT. See LICENSE.