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Base64 decoder
Decode Base64 back into UTF-8 text.
Paste a standard Base64 string to recover its bytes and decode them as UTF-8 text. Leading and trailing whitespace is trimmed, and the decoded text is shown for copying or downloading. Invalid Base64 and invalid UTF-8 sequences produce an error.
How to use
- Enter your text, values, or image.
- Adjust the options and run the tool.
- Copy or download your result.
Limitations and details
The output must be UTF-8 text, so arbitrary binary files, complete data URLs and the Base64url variant are not supported inputs.
Frequently asked questions
Is this tool free and private?
Yes. All 300 tools are free in this phase. Processing happens in your browser; your input and files are not sent to our servers.