Is Base64 encoding a form of encryption?

No. Base64 is an encoding format designed to convert data into ASCII characters for transmission, not encryption. It provides zero security secrecy, as any Base64 string can be decoded back to plain text instantly.

What is the difference between Base64 and URL encoding?

Base64 represents data using a 64-character ASCII set for text transport. URL encoding replaces reserved/unsafe characters in web URLs (like spaces or ampersands) with percent-escaped hexadecimal codes (e.g., `%20`).

Why does Base64 decoding produce an error message?

Decoding fails if the input contains characters outside the Base64 set [A-Z, a-z, 0-9, +, /, =] or if the string length is not a multiple of 4.

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