Question 1

Is Base64 a form of encryption?

Accepted Answer

No. Base64 is only an encoding; it does not hide data or provide security. Anyone can decode it instantly. For sensitive data, use real encryption such as AES.

Question 2

Why is Base64-encoded data larger?

Accepted Answer

Base64 turns every 3 bytes into 4 characters, so the size grows by roughly 33%. This is the cost of moving binary data through text-only channels.

Question 3

Are non-ASCII characters handled correctly?

Accepted Answer

Yes. This tool converts text to UTF-8 before encoding, so accented letters, emoji and any Unicode characters are processed without loss.

Question 4

What is the difference between Base64 and Base64Url?

Accepted Answer

Base64Url replaces the + and / characters (which break URLs and filenames) with - and _, and usually drops the trailing = padding. It is used in JWTs and URL parameters.

Question 5

Is this tool free?

Accepted Answer

Yes, completely free. No registration is required and all processing happens in your browser; your data is never sent anywhere.

Alan	Açıklama
Data URI	Görselleri CSS/HTML içine gömme (data:image/png;base64,...)
E-posta (MIME)	Ek dosyaların metin olarak taşınması
HTTP Basic Auth	kullanıcı:parola çiftinin kodlanması
JWT	Token başlık ve gövdesinin Base64Url ile kodlanması
API	İkili içeriğin JSON alanlarında taşınması

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