Base64 Decoder – Decode Base64 to UTF-8 Text | MZ Smart Tools House
Decode valid Base64 into UTF-8 text with strict invalid-character and padding checks.
Recover text from a Base64 value and get a clear error for malformed input or non-UTF-8 bytes.
How it works
Base64 characters are decoded to bytes, then bytes are decoded as UTF-8 text.
Example
SGVsbG8gV29ybGQ= → Hello World
Frequently asked questions
What if the bytes are not UTF-8 text?
The text decoder reports that the decoded bytes are not valid UTF-8.
Are invalid Base64 characters ignored?
No. Invalid input is rejected.
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