Question 1

What is Base64 encoding and why is it used?

Accepted Answer

Base64 is a method to convert binary data into ASCII text using 64 characters (A-Z, a-z, 0-9, +, /). It's commonly used in web development, email attachments, data URLs, and APIs where binary data needs to be transmitted as text.

Question 2

Is Base64 encoding secure?

Accepted Answer

No, Base64 is NOT encryption or security - it's just encoding. Anyone can easily decode Base64 data. Never use it to hide sensitive information. It's designed for data transmission, not security.

Question 3

What file types can I encode?

Accepted Answer

You can encode any file type: images (PNG, JPG), documents (PDF, DOC), text files, executables, etc. The tool converts the binary content to Base64 text, regardless of file format.

Question 4

Why does encoded data look longer than original?

Accepted Answer

Base64 encoding increases data size by approximately 33% because it uses 4 ASCII characters to represent every 3 bytes of original data. This overhead is the trade-off for text-safe transmission.

Question 5

When should I use Base64 encoding?

Accepted Answer

Use Base64 for embedding small images in CSS/HTML as data URLs, encoding binary data for JSON APIs, preparing file uploads for web forms, and any situation where you need to transmit binary data through text-only channels.

Base64 Encoder/Decoder

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Base64 результат

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