ASCII → Text Text → ASCII

🔄 Convert

Bidirectional Conversion

Convert ASCII to text or text to ASCII with one tool. Switch modes instantly with the toggle button. Perfect for developers, students, and anyone working with character encoding in programming, data processing, or digital communications.

Multiple Formats

Support for decimal, hexadecimal, binary, and octal ASCII representations. Choose the format that matches your data source or target system. Essential for working with different programming languages, protocols, or data exchange formats.

ASCII Reference Table

Complete ASCII table showing decimal, hexadecimal, binary values, and characters. Quick reference for looking up specific character codes without conversion. Includes printable characters from space (32) through tilde (126) and common symbols.

Instant Conversion

Real-time conversion with no delays. Process thousands of characters instantly with client-side JavaScript. No server uploads or network delays. Works offline after page load, making it perfect for secure environments or when working with sensitive data.

Flexible Separators

Choose from space, comma, newline, or no separator for ASCII codes. Automatically detects and handles different separation styles in input. Output format matches your requirements for copying into code, databases, or text processing applications.

Privacy & Security

All conversions happen entirely in your browser—no data sent to servers. Your text and ASCII codes remain completely private on your device. Perfect for handling confidential information, source code, or any sensitive data requiring character encoding conversion.

ASCII Code Ranges:

• 0-31: Control characters (non-printable)
• 32: Space character
• 33-47: Special symbols (!, ", #, $, %, &, etc.)
• 48-57: Digits 0-9
• 58-64: Punctuation (:, ;, <, =, >, ?, @)
• 65-90: Uppercase letters A-Z
• 91-96: Brackets and symbols
• 97-122: Lowercase letters a-z
• 123-127: Additional symbols

💻 Programming & Development

Debug character encoding issues, understand string manipulation, work with byte arrays, or analyze network protocols. Convert between ASCII and text when working with low-level programming, serial communications, or understanding how characters are stored in memory.

📡 Data Transmission

Encode text for transmission over networks or serial ports where only numeric data is allowed. Decode received ASCII codes back to readable text. Essential for IoT devices, embedded systems, microcontroller communications, and protocols requiring ASCII encoding.

🔐 Cryptography & Security

Understand character-based encryption schemes, analyze encoded messages, or work with obfuscated data. Convert ASCII codes for cryptographic analysis, reverse engineering, or understanding how text-based encryption works at the character level in security applications.

🎓 Learning & Teaching

Learn about character encoding, binary representation, and how computers store text. Students studying computer science can explore ASCII to understand fundamental concepts of data representation. Teachers can demonstrate character encoding interactively in programming courses.

📊 Data Recovery

Recover corrupted text files by converting ASCII codes, analyze binary data dumps, or extract text from hexadecimal memory dumps. Useful for forensic analysis, data recovery operations, or debugging when text appears as numeric codes instead of readable characters.

🔧 Text Processing

Process text in systems that only accept numeric input, create ASCII art by understanding character codes, or manipulate strings programmatically. Convert text for database storage, file format conversions, or any application requiring ASCII-based text representation.

Enter your ASCII codes (like 72 101 108 108 111) in the input field, select the format (decimal, hex, binary, or octal) and separator type, then click Convert. The tool instantly translates numeric codes to readable text. For example, 72 101 108 108 111 converts to "Hello". Works with any valid ASCII values from 0-255.

ASCII uses 7 bits (128 characters, 0-127) or extended 8 bits (256 characters, 0-255) covering English letters, digits, and common symbols. Unicode is a much larger encoding system supporting over 1 million characters including all world languages, emojis, and special symbols. ASCII is a subset of Unicode—the first 128 Unicode characters match ASCII exactly. Use ASCII for simple English text; use Unicode for international content.

Yes! The converter handles all ASCII characters including letters, numbers, punctuation marks, special symbols (@, #, $, %, &, etc.), and even control characters like newline (10) and tab (9). Extended ASCII (128-255) includes accented letters (é, ñ, ü) and additional symbols. Any valid ASCII code from 0-255 can be converted to its corresponding character.

Different programming languages and systems use different number formats. Hexadecimal (base-16) is compact and common in low-level programming, memory addresses, and color codes. Binary (base-2) shows the actual bits stored in computer memory, essential for understanding digital electronics and bit manipulation. Octal (base-8) is used in Unix permissions. Choose the format matching your data source or target application.

Yes, completely safe. All ASCII conversions happen entirely in your browser using JavaScript—no data is ever sent to our servers or stored anywhere. Your text and ASCII codes remain completely private on your device. This client-side approach ensures maximum privacy and security for sensitive information. The tool even works offline once the page loads.

Control characters (ASCII 0-31 and 127) are non-printable codes that control text formatting and device behavior. Examples include: Newline (10), Carriage Return (13), Tab (9), Backspace (8), and Escape (27). These don't display as visible characters but affect text layout and device control. Legacy systems used them for printer and terminal control; modern systems mainly use newline, tab, and escape characters.