Base64 Encoder

Example Base64 Encoding

Input: Text: Hello world

Result: Base64 output: SGVsbG8gd29ybGQ=

When To Use This Tool

• Encode small strings for testing.
• Prepare safe text for data URLs or config values.
• Check Base64 behavior before implementing it in code.

Limitations and Disclaimer

• Base64 increases data size and does not provide security.
• Different systems may treat character encoding differently for non-ASCII text.

Overview

Use this Base64 encoder to convert plain text into a Base64 string. Base64 is often used when text or small binary-like values need to be placed inside formats that expect safe printable characters.

Base64 is encoding, not encryption. Anyone can decode it back to the original text, so do not use it to hide passwords or secrets.

How Base64 Works

• Input text is converted into bytes.
• The bytes are grouped and represented using a 64-character alphabet.
• Padding may be added at the end so the encoded string has a valid length.

Practical Tips

• Use Base64 for transport compatibility, not security.
• Keep a copy of the original text when testing data conversions.
• Decode the output in your target system to confirm it matches the expected text.