Base64 Decoder
Base64 Decoder guide
Convert Base64 text back to its original form.
Input and limitations
Base64 text in Standard or URL-safe format.
Check the selected options before using the result. Formatting and conversion do not establish that data is safe or suitable for your application.
How to use Base64 Decoder
- Type or paste your Base64 text.
- Choose a format above.
- The result appears on the right.
- Use the copy button to copy the result.
- Click Clear to empty the input and output; your options stay selected.
Example
With Standard Base64 selected, SGVsbG8= becomes Hello. Only decode data from a trusted source.
Privacy on the website
The website uses Blazor Auto: interactive processing can run on the server or in your browser, depending on the current session. Do not assume pasted input stays on your device. Use non-sensitive sample data, and never place passwords, tokens or personal data in page URLs.
Search indexing covers public tool descriptions, not your input or generated output. See the privacy policy for website analytics and other data handling.