Question 1

What is Base64?

Accepted Answer

Base64 is an encoding scheme that converts binary data into ASCII text. It is widely used for email attachments, data URIs, API tokens, and more.

Question 2

Is Base64 encoding the same as encryption?

Accepted Answer

No, Base64 is not encryption. Anyone can easily decode it, so it should not be used to protect passwords or sensitive data.

Question 3

Can it handle Unicode characters like CJK and emoji?

Accepted Answer

Yes! This tool uses UTF-8 encoding to correctly handle all Unicode characters including Korean, Japanese, Chinese, and emoji.

Question 4

How much larger does Base64 encoding make data?

Accepted Answer

Base64 encoding increases data size by approximately 33%. Every 3 bytes of input become 4 Base64 characters.

Question 5

Is my data sent to a server?

Accepted Answer

No, all encoding and decoding happens entirely in your browser. There is no server communication whatsoever.

Base64 Encoder/Decoder

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