Character Encoding Detector - Analyze Text Encoding & Characters
Detect character encoding and analyze text for ASCII purity, UTF-8 multibyte characters, emojis, byte count, and more
Calculators
Calculator
How to Use
1Paste or type your text into the input area
2Click Analyze
3View the detected encoding type, byte count, character count, emoji detection, and unique character count
Frequently Asked Questions
ASCII is a 7-bit encoding that covers 128 characters (English letters, digits, and basic symbols). UTF-8 is a superset of ASCII that can encode any Unicode character using 1 to 4 bytes per character.
In UTF-8, characters outside the basic ASCII range require 2–4 bytes each. For example, an emoji like 😀 is 1 character but takes 4 bytes. Pure ASCII text has equal byte and character counts.