Base64 decoding is the reverse process of converting a Base64 encoded string back to its original text, restoring readable text content.
Base64 decoding is widely used in scenarios such as reading encoded configurations, parsing API responses, and restoring email content where encoded data needs to be converted back to text.
The decoding process converts every 4 Base64 characters back into 3 bytes of original data, automatically handling the padding character =.
The input must be a valid Base64 string, containing A-Z, a-z, 0-9, +, /, and the padding character =, otherwise decoding will fail.
Automatically recognizes and correctly decodes multilingual text content including Chinese, English, numbers, and symbols, maintaining the original format.
The decoding operation is performed entirely locally in the browser, Base64 data is not sent to external servers, ensuring data security.