Developer Tools
Base64 Decoder
Turn a Base64 value back into readable text.
Loading Base64 Decoder…
Free to use. No account needed. Your files and data stay in your browser.
How this tool works & helpful answers
How to use Base64 Decoder
- Paste your Base64 text, or load an example.
- Select Decode to see the readable text or an explanation of a problem.
- Copy or download the result.
Base64 Decoder: what to know
Base64 can represent any bytes, including files. This text decoder checks the encoding and requires valid UTF-8 output. If the content is a binary image, archive, or other non-text file, use a decoder intended for that file type.
Useful features
- Local browser processing
- Clear input validation
- No account required
Frequently asked questions
Why can valid Base64 fail to produce text?
The encoded bytes may represent binary data or a different character encoding. This tool decodes UTF-8 text only.
Is this tool free?
Base64 Decoder is free to use without an account. File and processing limits are displayed in the tool.