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Base64 Encode / Decode

Encode and decode Base64 strings

How It Works

Encode or decode text and binary data using the Base64 encoding scheme.

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format using 64 printable characters (A-Z, a-z, 0-9, +, /). It is commonly used for transmitting data over media designed to handle textual data, such as email attachments (MIME), data URLs in web pages, and storing complex data in JSON or XML. The = padding character is added to make the output length a multiple of 4.

Results

Enter values to see results

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Quick Tips

  • • Results update automatically as you type
  • • Use Tab to navigate between fields
  • • Press Enter to calculate

Frequently Asked Questions

How does the Base64 Encode / Decode work?
Simply enter your values into the input fields above. The Base64 Encode / Decode uses standard formulas to compute results instantly as you type or click.
Is the Base64 Encode / Decode free?
Yes, this calculator is completely free to use. No registration, no hidden fees, no limits.
How accurate are the results?
Results are computed using industry-standard mathematical formulas. For critical decisions, we recommend consulting a professional.
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