Base64 Encoder / Decoder

Encode any text into Base64 or decode Base64 strings back into plain text — instantly and accurately.

DEVELOPER TOOL

Base64 Tool

Mode

Base64 Output

No Result Yet

Enter text or a Base64 string and click the action button.

Common Base64 Examples

Plain Text Base64
Hello SGVsbG8=
Hello World! SGVsbG8gV29ybGQh
Admin QWRtaW4=
Password123 UGFzc3dvcmQxMjM=
[email protected] dXNlckBleGFtcGxlLmNvbQ==

Base64 Encoder / Decoder

This free Base64 Encoder and Decoder lets you convert plain text into Base64 format or decode a Base64 string back into readable text. The tool runs instantly in your browser and works with any combination of English, numbers and special characters.

Base64 is a binary-to-text encoding scheme that represents data using 64 printable ASCII characters. It is widely used in web development, email systems, APIs and data transmission because it allows binary data to be safely sent as plain text.

How to Use the Base64 Tool

  1. Choose Encode or Decode mode.
  2. Enter your text or Base64 string in the input box.
  3. Click the action button to process it.
  4. Copy the result with the Copy Result button.

Common Uses of Base64

  • Embedding images directly in HTML or CSS.
  • Encoding email attachments (MIME format).
  • Sending binary data through JSON or XML APIs.
  • Storing authentication tokens in a safe text form.
  • Data URIs used in modern web applications.

Important: Base64 is encoding, not encryption. Anyone can decode a Base64 string. Do not use it to protect sensitive information — use proper encryption instead.

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Frequently Asked Questions

What is Base64 encoding?

Base64 is a binary-to-text encoding scheme that represents binary data using 64 printable ASCII characters. It is commonly used to transmit data over media that only support text, such as email, JSON or URLs.

Is Base64 the same as encryption?

No. Base64 is only an encoding scheme, not an encryption method. Anyone can easily decode a Base64 string. If you need security, use proper encryption such as AES or TLS.

Where is Base64 commonly used?

Base64 is used in email attachments (MIME), embedding images directly in HTML or CSS, API authentication tokens, data URIs and storing binary data inside text formats like JSON or XML.

Can I decode any Base64 string?

Yes, Base64 can be decoded by anyone because it is not encrypted. However, the string must be valid Base64. Random text that is not valid Base64 will return an error.

Is this Base64 Encoder / Decoder free to use?

Yes. This Base64 Encoder and Decoder is completely free, works online and does not require any registration.

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