Base64 Encoder

Text to Encode
Base64 Output
Length: 0 chars
About Base64
  • Base64 is an encoding scheme used to represent binary data in an ASCII string format.
  • It is commonly used when there is a need to encode binary data that needs to be stored and transferred over media that are designed to deal with textual data.
  • Base64 is not encryption. It is easily decodable and does not provide any security.
  • Common uses include embedding image data directly into HTML/CSS files or sending email attachments.

About Base64 Encoder

The Base64 Encoder & Decoder lets you instantly encode plain text to Base64 format or decode Base64 strings back to readable text — all in your browser with no data sent to any server. Base64 encoding is widely used in web development, APIs, email systems (MIME), and data storage to safely transmit binary or special character data as plain text. This tool is perfect for developers, testers, and anyone working with encoded data.

How to Use

Frequently Asked Questions

Base64 is an encoding scheme that converts binary data or text into a set of 64 ASCII characters (A–Z, a–z, 0–9, +, /). It's used to safely transmit data in environments that only support text, such as URLs, emails, and JSON.

No. Base64 is encoding, not encryption. It is not a security measure — anyone can decode a Base64 string. If you need to protect data, use actual encryption (AES, RSA, etc.).

The "==" padding characters are added to make the output length a multiple of 4, as required by the Base64 specification.

This tool currently handles text/string encoding. For image-to-Base64 conversion, you would need a file-based encoder.

Yes, completely free with no account required.

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