Base64 URL Safe Encoder & Decoder

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Encode or decode strings using URL-safe Base64 conventions (RFC 4648).

Normal String Text

URL-Safe Base64 Output

Understanding URL-Safe Base64 Formats

Standard Base64 strings use character sets including + et /, which have special meanings in URL queries and routing paths (e.g. + indicates a space, / separates subdirectories). URL-safe base64 encodes data securely by replacing these characters with - et _ respectively.

Foire aux questions

It is the technical standard describing various data encodings, including Base64 URL-safe parameters without padding characters.

Equal sign (=) characters are used for padding in base64. Stipping them saves space in URL routing fields.