Developer Tools
Base64 Encoder & Decoder
Convert UTF-8 text or arbitrary files to Base64, decode Base64 back to text, or download decoded binary data.
🔒 Your files and data never leave your device
Mode
Unicode text is encoded as UTF-8 before Base64 conversion.
Simple workflow
How to use Base64 Encoder & Decoder
- 1Choose text or file mode.
- 2Enter data and encode or decode.
- 3Copy the result or download decoded bytes.
Good to know
Frequently asked questions
Is the text sent to a server?
No. Your input is processed instantly on your device and is not stored or uploaded.
Does it work offline?
Yes. After the page has been cached, this tool is designed to work without a network connection.
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