Convert Text to Hex
Convert text characters into Hexadecimal (base-16) format with UTF-8 support.
Hex Options
Base-16 Explained
Hexadecimal uses 16 distinct symbols: 0-9 to represent values 0-9, and A-F to represent values 10-15.
A single byte (8 bits) requires exactly two hex digits to represent values from 0 to 255 (00 to FF).
Continue with Related Tools
Translate to Hexadecimal
The Convert Text to Hex tool allows you to inspect the raw binary representation of your text. By translating characters into base-16, you gain insight into how computers store and process information, from simple ASCII letters to complex UTF-8 emojis.
Common Uses
Debugging & Forensics
Spot encoding errors, zero-width spaces, or hidden control characters instantly.
System Programming
Prepare strings for low-level memory operations, shellcode, or microcontroller data.
How it works
- Input: Type
A. - Decimal: ASCII value is
65. - Hex: 65 in base-16 is
41(4 × 16 + 1). - UTF-8: For
😊, we combine 4 bytes:F0 9F 98 8A.
Example
Feature Highlights
- UTF-8 ReadyFull support for international characters and emojis using TextEncoder.
- Code FriendlyAdd
0xor\xprefixes to generate ready-to-paste code arrays. - File DumpUpload text files to generate an instant hex dump of the contents.
Frequently Asked Questions
What is Hexadecimal?
Hexadecimal is a base-16 number system using digits 0-9 and letters A-F. It's the standard way to represent binary data in computing, as two hex digits perfectly represent one byte (8 bits).
How does text to hex work?
Every character on your screen corresponds to a numeric code (UTF-8). We convert that number into base-16. For example, 'A' is 65 in decimal, which is 41 in hex (4×16 + 1).
Why do emojis produce multiple hex codes?
Emojis like '😊' use standard UTF-8 encoding, which requires 4 bytes. Our tool reveals all 4 bytes (e.g., F0 9F 98 8A) instead of a single code point.
What are '0x' and '\x' prefixes?
These are common programming notations. C/C++ uses '0x' (0xFF), while Python/Shell uses '\x' (\xFF). You can toggle these styles in the 'Hex Options' panel.
Can I convert a file to hex?
Yes! Click the Upload icon to view the hex dump of any text file directly in your browser. It's instant and secure.
What is the difference between uppercase and lowercase hex?
Mathematically, there is no difference. 'FF' and 'ff' both equal 255. Uppercase is generally preferred for readability to distinguish letters from digits.
How is this useful for debugging?
Hex views reveal hidden characters like tabs (09), newlines (0A), or null bytes (00) that are invisible in standard text editors.
Is there a limit to the input size?
Since processing happens locally, we support very large inputs (millions of characters), limited only by your browser's memory.
Can I reverse this operation?
Yes, enable our 'Convert Hex to Text' tool to decode these hex strings back into readable characters.
Is my data sent to a server?
No. All conversions, including file uploads, are processed 100% client-side in JavaScript for maximum privacy.