CleanTextLab

PDFやメールから貼り付けたテキストを数秒で整形。改行削除・16進数変換・JSONフォーマットなど、すべてブラウザで動作します。アカウント不要、アップロード不要。

16進数変換ツール

テキスト文字列・大きな数値・カラーコードをブラウザ上で即座に変換できる多機能Hexユーティリティ。

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Samples:

Text Input

Hex Output

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使い方

Choose a mode: Text, Number, Color, Network, or Hex Dump using the tabs.
Text Mode: Encode text or Base64 to Hex or decode back. Use options for delimiters (spaces, colons) and prefixing (0x). Supports batch processing.
Number Mode: Enter a decimal, hex, or binary number. View all base representations, byte-swap for endianness, or use the bitwise calculator.
Color Mode: Paste hex, RGB, HSL, or CSS color names. Get conversions and generate complementary/analogous color palettes.
Network Mode: Reformat MAC addresses into standard separators (colons, dashes, dots) or convert IPv4 addresses to hex.
Hex Dump Mode: Drag & drop a file (up to 1 MB) or paste text to generate a classic xxd-style hex dump.
Copy the results or use 'Copy as Code' to export as C arrays, Python bytes, JS Buffers, or curl commands.

一般的なユースケース

Network Sniffing: Decode packet payloads from Wireshark, formats MAC/IP addresses.
Low-level Systems: Analyze file headers, byte orders, and swap endianness.
Software Engineering: Copy byte arrays as C unsigned char[], Python bytes, or JS Buffers.
Graphic Design & UI: Convert color codes and generate cohesive color palettes.
Data Analysis: Encode/decode Base64 data and inspect hex dumps.

よくある質問

What is Hexadecimal?

Hexadecimal is a base-16 number system used to represent binary data in a human-friendly way. Each hex digit represents 4 bits (a nibble).

What is a hex dump?

A hex dump is a visual representation of raw binary data. It traditionally divides the binary stream into lines showing the memory offset, hex bytes, and ASCII characters.

Hex Converter (Text, Base64, Numbers, Color, Network & Hex Dump)

Translate text and numbers into Hexadecimal string sequences and back. Computers visualize binary data as Hex (base-16) for readability. This tool allows you to convert ASCII/UTF-8 text and Base64 into hex, switch between decimal/binary/octal/hex for large numbers with bitwise operations, generate hex palettes from RGB/HSL colors, format MAC and IP addresses, and view xxd-style hex dumps of files or text.

How it Works

1Choose a mode: Text, Number, Color, Network, or Hex Dump using the tabs.
2Text Mode: Encode text or Base64 to Hex or decode back. Use options for delimiters (spaces, colons) and prefixing (0x). Supports batch processing.
3Number Mode: Enter a decimal, hex, or binary number. View all base representations, byte-swap for endianness, or use the bitwise calculator.
4Color Mode: Paste hex, RGB, HSL, or CSS color names. Get conversions and generate complementary/analogous color palettes.
5Network Mode: Reformat MAC addresses into standard separators (colons, dashes, dots) or convert IPv4 addresses to hex.
6Hex Dump Mode: Drag & drop a file (up to 1 MB) or paste text to generate a classic xxd-style hex dump.
7Copy the results or use 'Copy as Code' to export as C arrays, Python bytes, JS Buffers, or curl commands.

Key Features

Text & Base64: Encode/decode UTF-8, base64, and hexadecimal.

Option customizers: Customize separators (space, colon, none), prefixes (0x), and casing.

Number base engine: Convert decimal, hex, binary, and octal with BigInt support.

Bitwise calculator: Perform AND, OR, XOR, NOT, and shifts.

Endianness toggle: Swap byte order (little-endian vs big-endian).

Color palette generator: View analogous/triadic HSL color rotations.

Network utilities: Format MAC addresses and map IPv4 to hex.

Interactive hex dump: Generate offset, hex columns, and ASCII translations.

Common Use Cases

Network Sniffing: Decode packet payloads from Wireshark, formats MAC/IP addresses.Low-level Systems: Analyze file headers, byte orders, and swap endianness.Software Engineering: Copy byte arrays as C unsigned char[], Python bytes, or JS Buffers.Graphic Design & UI: Convert color codes and generate cohesive color palettes.Data Analysis: Encode/decode Base64 data and inspect hex dumps.

Frequently Asked Questions

Everything you need to know about using this tool effectively and securely.

Q.What is Hexadecimal?