Developer Tools
Base64 Decoder
Decode Base64 back to text.
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Base64
Decoded text
About this tool
Whitespace is stripped, then atob, then UTF-8 decode.
How to use
- Paste Base64.
- Copy the decoded text if it is valid.
Formula and methodology
atob → bytes → TextDecoder.
Worked example
SGVsbG8= decodes to Hello.
Frequently asked questions
What if decoding fails?+
The input is not valid Base64, or it is not UTF-8 text.
Is data stored?+
No.
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