Base64 encoder
Encode UTF-8 text as Base64.
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Base64 decoder
Decode Base64 back into UTF-8 text.
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How to use Base64 decoder
Read the text represented by a Base64 string. This decoder interprets the decoded bytes as UTF-8 text rather than creating arbitrary binary files. Use the Base64 to image tool for a complete image data URL. Check the source encoding if the output is unreadable or the tool reports invalid data.
01
Paste the Base64 string
Add encoded text without an image data URL prefix.
02
Decode the UTF-8 content
Run the tool to interpret the decoded bytes as text.
03
Check and copy the result
Review the output, then copy or download the decoded text.
COMMON QUESTIONS
Base64 decoder: useful answers
Can this decode a Base64 PDF or image file?
It is designed for UTF-8 text, not arbitrary binary files. Use a file-specific decoder for images or other formats.
Why can decoding fail?
The Base64 may be malformed, or its decoded bytes may not form valid UTF-8 text. Check both the input and the source encoding.