Online Base64 Encoder/Decoder Tool

The online Base64 tool provides Base64 encoding and decoding functions, and supports a wide range of character encodings, including UTF-8, GB18030 (compatible with GBK/GB2312), Big5, Shift_JIS, EUC-KR, as well as numerous ISO and Windows series encodings. This design aims to ensure accurate results when processing different languages and special characters (including Emoji symbols 😊). In addition, this tool also has the ability to convert between text and hexadecimal (Hex).

Overview of Base64 Encoding

Base64 is an encoding method that converts binary data into an ASCII string. It is often used in scenarios where binary data needs to be transmitted or stored in text format, such as embedding images in emails, including complex data in XML or JSON data, or ensuring data integrity when data is transmitted between different systems. The Base64 encoded string only contains A-Z, a-z, 0-9, +, /, and the padding character =.

Instructions for Using the Base64 Converter Tool

To perform Base64 encoding (Text to Base64):

1. Paste or type the text to be encoded in the input box above.
2. Select the character encoding of the original text from the "Character Encoding" dropdown menu. For text containing special characters such as Chinese, Japanese, Korean, or Emojis, it is recommended to use UTF-8.
3. Click the "Base64 Encode" button.
4. The encoded Base64 string will be displayed in the output box below, and the code can be copied using the "Copy" button.

To perform Base64 decoding (Base64 to Text):

1. Paste the Base64 string to be decoded in the input box above.
2. Select the original character encoding expected for the decoded text from the "Character Encoding" dropdown menu. If unsure, or if the expected text contains Emojis or multilingual characters, try selecting UTF-8. Correct encoding selection is crucial for restoring special characters.
3. Click the "Base64 Decode" button.
4. The decoded original text will be displayed in the output box below.

Text and Hex (Hexadecimal) Conversion:

1. Enter text or a Hex string.
2. Select Hex from the "Character Encoding" dropdown menu.
3. Click the "Base64 Encode" button to convert text to a Hex string (text bytes are encoded using UTF-8 by default).
   Click the "Base64 Decode" button to convert a Hex string back to text (bytes are decoded using UTF-8 by default).
   

Main Features

• Base64 Encoding and Decoding: Achieves fast and accurate conversion between text and Base64 formats.
• Wide Character Encoding Support: Supports multiple encodings such as UTF-8, GB18030, Big5, Shift_JIS, EUC-KR, ISO series, Windows series, etc., ensuring correct processing of multilingual and special characters (including Emoji 😊).
• Hex Conversion: Supports mutual conversion between text and hexadecimal strings.
• Binary Decoding: Can decode Base64 to its original binary string representation.
• Local Processing: All operations are completed locally in the user's browser, and data is not sent to the server, ensuring data privacy.
• User-Friendly Interface: Simple design, easy to operate, and provides clear and copy functions.

Supported Character Encodings (Partial List)

This tool supports most encodings defined in the W3C Encoding Standard, including but not limited to:
UTF-8, UTF-16LE, UTF-16BE, GB18030 (compatible with GBK, GB2312), Big5, Shift_JIS, EUC-KR, EUC-JP, ISO-8859-1 (Latin-1), ISO-8859-2, Windows-1250, Windows-1251, Windows-1252, KOI8-R, etc.

This online Base64 converter aims to provide convenience for developers, system administrators, and other users who need fast and reliable Base64 or Hex conversions.