Question 1

Is encoding the same as cryptographic encryption?

Accepted Answer

No. Encoding (such as Base64, Hex, or URL encoding) merely translates data into standard character sets for safe transmission across networks and protocols. It provides zero confidentiality or security; anyone can reverse it.

Question 2

Why does Base64 data increase in size compared to raw text?

Accepted Answer

Base64 represents 3 binary bytes (24 bits) using 4 ASCII characters (6 bits each). This introduces an inherent ~33% size overhead in data transmission.

Question 3

What is URL-safe Base64?

Accepted Answer

Standard Base64 uses + and / characters and = padding, which have reserved meanings in URL query strings. URL-safe Base64 replaces + with -, / with _, and omits trailing = padding.

Question 4

How does the Auto-Decode feature identify the correct format?

Accepted Answer

The engine inspects the input string and tests it against URL decoding rules, Base64 character sets, and even-length hexadecimal strings, presenting all successfully decoded representations.

Question 5

Are my strings sent to a server when encoding or decoding?

Accepted Answer

No. All conversions execute 100% locally in your web browser using JavaScript's native encoding utilities.

Encode or decode Base64, hex, and URLs

Data encoding utility

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