Encode plain text into Base64 or decode a Base64 string back to readable text with one click. Base64 represents binary data as ASCII characters and is widely used for data URIs, embedding images in CSS or HTML, encoding JSON Web Tokens (JWTs), and transmitting data over text-only channels.
The conversion is fully Unicode-safe and happens entirely in your browser, so nothing is sent to a server. Paste a token, a data URI, or any encoded string to inspect its contents.
How do I decode a Base64 string?
Paste the Base64 into the input and click Decode to get the original text back. Click Encode to convert the other way.
Is Base64 the same as encryption?
No. Base64 is encoding, not encryption — it is easily reversible and provides no security. Use it for transport, not secrecy.
Does it handle Unicode and emoji?
Yes. The encoder is UTF-8 safe, so accented characters and emoji encode and decode correctly.
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