Here are some of the key advantages of using Base64 encoding: Encodes Any Binary Data as Textīase64 can encode any arbitrary binary data like images, executables, csv files, etc into a text format. Encryption and Securing Dataīase64 is commonly used to encode encrypted data before transmitting or storing. Embedding Media in Codeĭirectly embed images, videos, etc in textual documents like HTML by encoding them as Base64 strings. Save binary data like images and documents in a database by first encoding to Base64 string format.

Here are some common use cases for Base64 encoding and decoding in Kotlin: Transmitting Data Over NetworksĮncode binary data to Base64 in order to transmit it over text-based networks like HTTP, SMTP, etc. Here’s how to encode strings to Base64 in Kotlin: Importing Kotlin’s Base64 Library Kotlin provides built-in Base64 encoding and decoding through the 64 class. Necessary for embedding media like images in textual documentsĮncoding: Binary data -> Break into 3 byte chunks -> Split into 6-bit groups -> Map to Base64 table -> Output as ASCII stringĭecoding: ASCII string -> Break into 4 char groups -> Map from Base64 table -> Combine 6-bit groups -> Merge into 3 byte chunks -> Output original binary dataĭecoding reverses the encoding process to reconstruct the original binary data from the Base64 string.Allows binary data to be transmitted over text-based networks.Encoded strings are universally compatible across systems.Base64 can represent any binary data in ASCII format.There are several advantages to encoding binary data as Base64: This Base64 string can be safely transmitted over textual networks and systems. This allows the binary data to be converted into a Base64 encoded string that contains only ASCII characters. Each 6-bit group is represented by one of the 64 Base64 characters. These 24 bits are divided into 4 groups of 6 bits each.

What is Base64 Encoding?īase64 encoding works by breaking binary data into chunks of 3 bytes (24 bits). It is commonly used to transmit binary data over text-based communication systems that only support ASCII.

This guide covers importing the Base64 library, encoding/decoding strings and binary data, use cases like storing data and encryption, advantages, and more.īase64 is an encoding method that converts binary data into ASCII text format using 64 printable characters. To encode a string with Java’s Base64 class, we can use the getEncoder() and encodeToString() functions provided by the 64 class.Master Base64 data encoding/decoding in Kotlin. In Java, we can use the built-in Base64 class for encoding and decoding strings. The encoded data can then be easily transmitted through communication channels that support only ASCII characters. Using Kotlin’s Built-in Base64 Libraryīase64 encoding is a common technique used to convert binary data into ASCII text format. This will give you three bytes, which can be concatenated to obtain the original data.īase64 encoding is commonly used for transmitting small amounts of binary data in situations such as URLs, cookies, and web pages.

Then, divide these 16 bits into three groups of 8 bits each. To decode the encoded string, divide it into groups of four characters, which gives 16 bits. These four characters form the encoded string. This will give you four numbers as indices, which can be used to look up the corresponding four characters in the Base64 table. Then, divide these 24 bits into four groups of 6 bits each. To encode the original data, divide it into groups of three bytes, which gives 24 bits. Three bytes, or 24 bits, correspond to 4 Base64 groups, which means that three bytes can be represented by four printable characters. Since 2 to the power of 6 equals 64, each group of 6 bits can be represented by a printable character. Discover the basics of Base64 encoding,decoding and how to use Kotlin’s built-in library for efficient encoding.īase64 is a method of representing arbitrary binary data using 64 characters.

Kotlin base64 decode string