Base64 Decode
Decode standard Base64 into readable UTF-8 text.
Make this result useful
Use it now, or keep a copy for later. We never save your tool input automatically.
How to use this tool
Paste Base64 text, optionally separated by spaces or line breaks, and process it.
Important to know
Decode standard Base64 into readable UTF-8 text.
Invalid padding, binary files, invalid UTF-8 and non-readable control bytes are rejected. Base64 is encoding, not encryption.
Formula and methodology
Strictly decode Base64, verify canonical re-encoding and validate the result as readable UTF-8.
Example
SGVsbG8= decodes to Hello.
Frequently asked questions
Can it decode a Base64 image?
Use Base64 to Image for supported image bytes. This tool returns text only.