The Base64 Alphabet and Padding Explained (=, +, /)
Which characters are valid Base64, which are illegal, why a block can be illegible, why it can start with /, and how the = padding works, with an example.
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All articles about url-safe: 2 practical guides and tutorials from our free, privacy-first online tools.
URL-Safe Base64 vs Standard Base64: Key Differences
Standard Base64 uses +, / and = that break URLs, JWTs and filenames. Learn the url safe base64 vs standard base64 difference and how to fix decode errors.
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