ASCII Converter: Text to ASCII Code with Table | Free Online Tool

A Enter space-separated decimal, hex, or binary values in the respective fields to decode to text.

A ASCII (American Standard Code for Information Interchange) is a 7-bit character encoding with 128 characters including control codes, letters, digits, and symbols.

A Yes, completely free with no limits.

A Yes, absolutely! When you type or paste text into the input area, our converter instantly displays the corresponding ASCII values in three formats: decimal, hexadecimal, and binary. This simultaneous conversion across all three common representations makes it quick and efficient for developers, students, or anyone needing to work with different numeric bases for ASCII characters without switching tools or views.

A Each ASCII representation serves different purposes. Decimal codes are common for basic display or simple calculations. Hexadecimal is frequently used in programming, low-level data representation, and debugging due to its conciseness and ease of mapping to binary. Binary codes are the machine's native language, crucial for understanding how computers store data at the most fundamental level, often used in networking or embedded systems. Our converter provides all three for versatile application.

A You can input up to 256 characters at once. This covers most short text strings. If you need to convert longer passages, just break them into chunks of 256 characters or fewer and convert them separately. It's a handy way to handle anything from single words to a decent paragraph.

A You can, but with limits. Standard ASCII only covers 128 English characters, so symbols like 'ñ' or '€' won't show up. Emojis also fall outside ASCII's 7-bit range. For those, you'd need Unicode conversion instead. This tool handles plain ASCII characters only—letters, digits, basic punctuation, and control codes. If you type an emoji, expect a blank or question mark output.

A That happens when you type something outside standard ASCII, like accented letters or symbols beyond code 127. Our tool strictly handles 7-bit ASCII (codes 0-127). Characters like 'á', 'ü', or 'Ω' don't exist in that range. They show as blank or zero because the tool can't map them. If you need support for extended characters, look for a Unicode converter instead.

A Absolutely. Click any row in the ASCII table to copy that character's decimal, hex, and binary values to your clipboard at once. For example, if you need 'A' (65 decimal, 0x41 hex, 01000001 binary), one click grabs all three. It's a real time-saver when you're hardcoding constants or debugging network packets. Just paste straight into your IDE or terminal.

A Yes, and it's simpler than you might think. Type characters like ", &, or < into the text field, then check the decimal column. That decimal value is exactly what you need for an HTML entity like &#34; or &#38;. For example, an ampersand is 38, so you'd write &#38; in your page source. This approach beats memorizing named entities and works for every printable ASCII character. Handy trick: keep the table open while editing your HTML files.