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Base64 Encode / Decode
Encode text to Base64 or decode it back — instant, local, unicode-safe. Paste or upload a text file.
A little guidance. A better result.
How to use Base64 Encode / Decode
Encode or decode Base64 text instantly — unicode-safe, fully local.
Prepare your input
Paste text or Base64 data.
Use the workspace
Choose the encode or decode direction.
Check your result
Check the decoded text or copy the encoded result.
Know the limits
Base64 is reversible encoding, not encryption. Use the URL-safe variant for that alphabet.
Where does my input go?
This browser tool processes your input on your device. Optional analytics is a separate choice; it is not needed to use the tool. Keep your original until you have checked the result.
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