Base64 Decoder - Free, Instant, In Your Browser
Paste a Base64-encoded string to instantly see the original text it represents, decoded locally in your browser.
How to use Base64 Decode
- 1Paste your text or data into the input box above.
- 2Base64 Decode runs instantly, right in your browser.
- 3Copy the result or use it directly.
Your file is only processed temporarily for the conversion and is automatically deleted within 24 hours.
Frequently Asked Questions
What happens if the text is not valid Base64?
You will see a clear error message explaining the input could not be decoded.
Is this safe for sensitive data?
Yes - decoding happens entirely client-side, so sensitive strings never leave your browser.