Base64 Decode Tool
Decode Base64 encoded text back to its original format. Perfect for decoding data URLs, email attachments, and encoded strings.
Base64 Decoder
Enter your Base64 encoded text below to decode it back to its original format. All processing happens in your browser.
About Base64 Decoding
Base64 decoding converts Base64 encoded text back to its original format. This is the reverse process of Base64 encoding.
Common sources: Email attachments, data URLs (data:image/png;base64,...), API responses, configuration files, and encoded credentials.
Validation: If decoding fails, the input may not be valid Base64. Check for proper padding (=) and ensure only valid Base64 characters are used.
Unicode support: This tool properly handles Unicode characters that may have been encoded in the original text.