Conversor de ASCII / Unicode Online Grátis
Convert text to ASCII codes, Unicode code points and UTF-8 bytes
The ASCII / Unicode Converter translates any text string into its ASCII decimal codes, Unicode code points (U+xxxx format), and UTF-8 byte sequences — and reverses the process from codes back to readable text. Developers debugging encoding issues, students learning character encoding, and anyone working with internationalization or protocol-level data will find it immediately useful.
Frequently Asked Questions
Sobre Esta Calculadora
ASCII (American Standard Code for Information Interchange) assigns numeric values to 128 characters — letters, digits, punctuation, and control codes. Every text file, network packet, and database string ultimately resolves to these codes. Understanding the mapping between characters and their numeric representations is foundational for debugging encoding bugs, writing parsers, and working with binary protocols.
Unicode extended this idea to over a million code points, covering scripts from Arabic to emoji. UTF-8 encodes those code points into one to four bytes, maintaining full backward compatibility with ASCII for the first 128 characters. Mismatched encoding assumptions are among the most common sources of garbled text in web applications and data pipelines.
This converter lets you inspect any text character by character, see the hex and decimal representations in every relevant encoding, and reverse-engineer code points back to their glyphs. It's a practical reference tool for backend developers, security researchers testing input validation, and students studying how computers represent text internally.
O Conversor ASCII traduz qualquer texto em códigos ASCII, Unicode e sequências de bytes UTF-8.
Exemplo Resolvido
Encoding the string "Hi!" to ASCII and UTF-8
Entradas:
- Input text: Hi!
Passo a Passo:
- "H" → ASCII 72 → Unicode U+0048 → UTF-8 byte: 0x48
- "i" → ASCII 105 → Unicode U+0069 → UTF-8 byte: 0x69
- "!" → ASCII 33 → Unicode U+0021 → UTF-8 byte: 0x21
- Full UTF-8 byte sequence: 48 69 21 (hex) = 72 105 33 (decimal)