Base64 Encoder

Plain Text

Base64 Output

(Output will appear here)

How to use Base64 Encoder

Paste or type any text into the input box and click Encode. The tool instantly converts your text to Base64 format. Base64 encoding is commonly used for transmitting binary data in text format, such as email attachments or API payloads.

What is Base64 Encoding?

Base64 is a binary-to-text encoding scheme that represents binary data in ASCII string format. It's commonly used when there's a need to encode binary data that needs to be stored and transferred over media that are designed to deal with textual data.

This encoding is used in many applications including email (MIME), XML configuration files, and web APIs. It ensures data integrity during transmission by converting binary data into a format that can be safely transmitted as text.

Common Use Cases

Email Attachments - Base64 encoding is used in email to attach binary files
API Authentication - Basic auth credentials are often Base64 encoded
Data URLs - Images in HTML can be embedded as Base64 data URLs
Configuration Files - Binary data stored in JSON or XML configs

FAQ

Is Base64 encryption?No, Base64 is encoding, not encryption. It's easily reversible and should not be used for security purposes.

Does Base64 increase file size?Yes, Base64 encoding increases size by approximately 33%. Each 3 bytes become 4 Base64 characters.

What characters does Base64 use?Base64 uses 64 characters: A-Z, a-z, 0-9, +, and /. The = character is used for padding.