Input
Output
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FAQ
Why does Base64 decoding fail? ▼
The input may contain invalid characters, missing padding, or it may represent binary data rather than UTF-8 text.
Can Base64 represent binary data? ▼
Yes. Base64 often encodes binary data. This tool attempts to decode as UTF-8 text.
Is my data uploaded? ▼
No. Decoding runs locally in your browser.