How to use Base64 Decode
- Drop your text or data into the field at the top of Base64 Decode.
- Set Mode so the output fits your use case.
- Watch the output update instantly while you adjust the text or data.
- When it looks right, Copy to save it.
About this tool
There is no server behind Base64 Decode. Base64 Decode converts between raw data and Base64 in your browser, handling text or files locally.
Binary-safe handling means images and other files survive the round trip intact. Your input never leaves the page, and no account or install is required.
Frequently asked questions
What does Base64 Decode do?
Base64 Decode runs entirely on your device: add your input using the Mode control, and it decodes it locally in real time.
Is Base64 Decode free to use?
Yes — Base64 Decode is completely free, with no usage limits.
Does Base64 Decode upload my data?
No — Base64 Decode processes everything locally in your browser, so nothing you enter is uploaded or stored.
Is Base64 in Base64 Decode URL-safe?
Base64 Decode uses standard Base64 by default and runs locally, so your data is never sent anywhere.
Can I use Base64 Decode without a connection?
Yes — after the first load Base64 Decode runs entirely offline.