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2026-04-24 11:17
Base64 vs Base64URL vs URL Encoding: When Should You Use Each?
Base64, Base64URL, and URL encoding are often confused because they all seem to “encode” data.
But they solve different problems.
Using the wrong one can break URLs, APIs, JWTs, image data, or browser behavior.
In this guide, we’ll compare:
Base64
Base64URL
URL encoding / percent encoding
You’ll learn what each one does, where each one is useful, and how to choose the right format.
For qui...