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ASCII Value (Decimal)
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Unicode
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HTML Entity
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URL Encoded
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Binary
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Hexadecimal
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Enter characters above and click "Convert All Characters"
What This Tool Does
- ASCII Value: Decimal number representing the character (0-127 for ASCII)
- Unicode: Universal character code in U+XXXX format
- HTML Entity: Code to use in HTML documents (A)
- URL Encoded: Percent-encoded format for URLs (%41)
- Binary: 8-bit binary representation (01000001)
- Hexadecimal: Base-16 number representation (41)
Common Use Cases
- Web developers encoding special characters
- Programmers working with character codes
- Students learning about character encoding
- Creating HTML entities for special symbols
- URL encoding for web links
Frequently Asked Questions
ASCII (American Standard Code for Information Interchange) is a character
encoding standard that assigns a unique number (0-127) to each character. For example, 'A' is
65, 'a' is 97, and '0' is 48.
ASCII only supports 128 characters (English letters, numbers, and basic symbols).
Unicode supports over 140,000 characters from all languages, including emojis. ASCII is a subset
of Unicode.
HTML entities are useful for displaying special characters that have meaning in
HTML (like < and >) or characters not available on your keyboard. They ensure proper
rendering across all browsers.
URL encoding (percent-encoding) converts special characters into a format safe
for URLs. Spaces become %20, and special characters are replaced with their hexadecimal values
preceded by %.