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From the Blog
Learn how age is actually calculated, the leap year rule and how it affects February 29 birthdays, calendar vs full-day calculation methods, and practical uses beyond birthdays — free, instant tool.
Learn how Base64 encoding works, when to use it, the difference between Base64 and Base64URL, real-world use cases in JWTs, data URIs, and MIME email, and how to encode or decode anything free online.
Learn how to decode Base64 strings back into image files using atob(), Buffer.from(), and Python. Covers Data URI parsing, magic byte detection, and real-world use cases like API responses and HTML email extraction.
