Base64 is a method of encoding binary data into a text format represented by 64 printable characters. It is commonly used in scenarios where binary data needs to be processed as text, such as embedding images in emails, passing small amounts of binary data in URLs, or including binary content within JSON/XML files.

• Encode: Convert any text (including multi-byte characters like Chinese) into a Base64 string.
• Decode: Restore a valid Base64 string back to its original text.
• URL Safe Mode: When selected, the `+` and `/` in the encoded result will be replaced with `-` and `_` respectively, and the trailing `=` padding characters will be removed, making the result safe for use in URLs or filenames.
• Pure Frontend Processing: All operations are completed natively in your browser using JavaScript, fast and secure, your data is never sent to any server.