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Free Base64 Encoder and Decoder
Encode and decode Base64 text in the browser.
local browser tool
Introduction
Base64 is commonly used in tokens, data URLs, email payloads, and transport-safe text conversions.
How To Use
Step 1
Enter your text
Paste plain text or a Base64 string depending on your goal.
Step 2
Choose encode or decode
Convert to Base64 or back into readable text.
Step 3
Copy the result
Reuse the transformed string in your app or document.
Examples
Input
Madabase
Output
TWFkYWJhc2U=
FAQ
Can it handle Unicode text?
Yes. The encoder uses UTF-8 handling so non-ASCII text can be encoded and decoded.
Does this tool upload my input?
No. This tool runs in your browser for the first release, so your input stays local.