Decode Base64 strings to UTF-8 text with detailed byte-level analysis. Understand encoding structure and character representation.
Decode Base64 encoded data and analyze UTF-8 byte structure
UTF-8 is a variable-width character encoding that uses 1 to 4 bytes per character. When decoding Base64 to UTF-8, we first decode the Base64 string to raw bytes, then interpret those bytes as UTF-8 encoded characters.
UTF-8 is backward compatible with ASCII - all ASCII characters use exactly 1 byte. For international characters, UTF-8 uses multiple bytes to represent the full Unicode range, making it efficient for English text while supporting all world languages.
0xxxxxxx � 1-byte, ASCII (0-127)110xxxxx 10xxxxxx � 2-byte (128-2047)1110xxxx 10xxxxxx 10xxxxxx � 3-byte (2048-65535)11110xxx 10xxxxxx 10xxxxxx 10xxxxxx � 4-byte (65536+)A � 0x41 (1 byte)é � 0xC3 0xA9 (2 bytes)你 � 0xE4 0xBD 0xA0 (3 bytes)🌍 � 0xF0 0x9F 0x8C 0x8D (4 bytes)Base64 encoded string containing UTF-8 data
Convert Base64 to raw UTF-8 bytes
Interpret bytes as UTF-8 characters
UTF-8 is a character encoding that represents text as bytes, while Base64 is an encoding that represents binary data as ASCII text. Base64 is often used to encode UTF-8 text for transmission through text-only systems.
Variable length encoding makes UTF-8 efficient - English text uses mostly 1 byte (like ASCII), while international characters use more bytes only when needed. This provides both compatibility and universality.
You can't always tell from the Base64 string itself. After decoding, analyze the byte patterns. Valid UTF-8 has specific byte patterns and won't contain invalid sequences.
Absolutely! This Base64 to UTF-8 decoder is completely free with no limitations, registration, or hidden costs.