The Fastest Java Base64 Library: Using the Vector API

2023/09/04

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The article introduces a Java library for Base64 encoding and decoding that utilizes the Vector API. This library offers the fastest performance among all Java-written Base64 libraries, surpassing both vector-based and scalar methods. It outperforms intrinsified java.util for RFC2045/MIME encoding/decoding, but is slightly slower for RFC4648. The library requires Java 16 or higher. The article provides usage instructions, including adding the necessary flag to the java run command and accessing the library via local installation. It also explains the difference between fast and normal decoding methods, with the former assuming valid input and the latter handling invalid input explicitly. The article concludes by mentioning that the library will be hosted on the central Maven repository once the Vector API is officially released.