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URL Encoding vs Base64

Understand the difference between URL encoding and Base64 encoding with simple examples.

Updated 2026-05-09

Direct Answer

URL encoding makes reserved characters safe inside a URL. Base64 represents data as safe text. They solve different problems and neither one encrypts data.

Use URL Encoding When

Use URL encoding for query parameters, path parts, and normal text that must appear in a URL.

hello world -> hello%20world

Use Base64 When

Use Base64 when bytes or structured data must be represented as text before being stored or transmitted.

hello -> aGVsbG8=

FAQ

Which one should I use in a URL query parameter?

Use URL encoding for normal query text. Use Base64 only when you specifically need to represent data as text first.

Do either of these protect private data?

No. Both are encodings and can be reversed.