Convert Base64 encoded text into readable text

This tool converts Base64 encoded text into readable text. It supports multiple conversion modes including basic conversion of the entire input, pre‑processing to remove whitespace for cleaner decoding, extraction and conversion of only valid Base64 segments from mixed content, and custom formatting of the decoded output. Simply enter your Base64 encoded text, choose the conversion mode and options below, and click the process button to see the decoded text.

Input (Base64 Encoded Text)

Decoded Text

Conversion Modes:

Basic Conversion (Entire Input)
Converts the entire input from Base64 into readable text.

Conversion with Whitespace Removal
Removes all whitespace characters from the input before decoding, useful when the Base64 string contains extra spaces or line breaks.

Extract and Convert Valid Base64 Segments
Searches for valid Base64 segments within mixed text and decodes each one separately. Multiple decoded segments are output on separate lines.

Convert with Custom Format
Converts the input from Base64 and then displays the decoded text using your custom format. Use {text} as a placeholder for the decoded text.

Examples:

Basic Conversion

Converts the entire Base64 encoded input into readable text.

Before:

SGVsbG8sIFdvcmxkIQ==

After:

Hello, World!

Conversion with Whitespace Removal

Removes extra spaces and line breaks before decoding.

Before:

U0dW   c2JHOGdWMjl5YkdRPQ==

After:

Hello World

Extract and Convert Valid Base64 Segments

Finds valid Base64 segments within mixed text and decodes each one.

Before:

Random text SGVsbG8sIFdvcmxkIQ== more text QmFzZTY0IFRlc3Q=

After:

Hello, World!
Base64 Test

Convert with Custom Format

Converts the Base64 text and displays it using a custom format.

Before:

V2VsY29tZSB0byB0aGUgSnVzdCBNb2R1bGUh

After (Format "Decoded: {text}"):

Decoded: Welcome to the Just Module!