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Base64 Encode

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This Encode to Base64 format or decode from it with various advanced options. Free tools online.

This Base64 decode online tool helps you decode Base64 string to original text.

This file to Base64 online tool helps you encode file to Base64 string to without uploading file.

This Base64 to file online tool helps you decode Base64 string to file and download.

Base64 Encode - Free Online Base64 Encoding Tool

Base64 Encode String is a free online tool that helps you encode text strings to Base64 format. This tool is easy to use, secure, and supports many useful features.

How to use:

  1. Enter the text string you want to encode in the "Enter string to encode" box.
  2. Click the "Encode" button.
  3. The Base64 encoded text string will be displayed in the "Result" box.


  • Free and easy to use: No software installation required, just access the website and use the tool.
  • Fast and secure: Quickly encodes and secures your data.
  • Supports many useful features:
    • Customize Base64 character set: Allows you to choose the Base64 character set that suits your needs.
    • Automatically copy results: Automatically copies the encoded text string to the clipboard for easy use.
    • Store encoding history: Stores your encoding history so you can access previously encoded strings.


  • Transmit data securely: Encode data before transmission to secure information.
  • Store confidential data: Encode confidential data to protect it from unauthorized access.
  • Encrypt passwords: Encrypt passwords to enhance the security of your accounts.
  • Send secure emails: Encode email content to secure information when sending emails.


Enter the string "This is the string to encode" in the "Enter string to encode" box. After clicking the "Encode" button, the result displayed in the "Result" box is "RGF5IGxhIGNodW9pIGNhbiBmw7FvIG7DoG8g".


  • The Base64 encoded text string may be longer than the original string.
  • Some special characters may be changed when encoding Base64.

With the "Base64 Encode String" function, you can easily encode text strings to Base64 format to secure data and transmit it securely.

I hope this information is helpful to you!


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Free for all users and all countries. They do not limit any functions or number of uses. In particular, we do not require login or payment of any fees or actions that prevent users from using this free software.