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About Base64 Encoder Decoder
The Base64 Encoder Decoder is a free online tool that instantly encodes plain text to Base64 format and decodes Base64 back to plain text. Essential for developers working with APIs, email systems, data transmission, and web development. Works entirely in your browser — no server uploads, completely private.
How to Use Base64 Encoder Decoder
Enter your plain text in the input area, or paste Base64-encoded text
Click Encode to convert text to Base64, or Decode to convert Base64 to text
View the converted output instantly
Copy the result to your clipboard
Common Use Cases
Encoding binary data for email and web transmission
Embedding images or files in HTML, CSS, or JSON
Decoding Base64 strings received from APIs or data sources
Frequently Asked Questions
How does the Base64 Encoder Decoder work?
Enter plain text to encode it into Base64 format, or paste Base64-encoded text to decode it back to plain text. Click Encode or Decode to instantly convert your data.
What is Base64 encoding used for?
Base64 encoding is used to safely transmit binary data as text. Common uses include encoding email attachments, embedding images in HTML/CSS, encoding data for URLs, and storing complex data in JSON or XML.
Is the Base64 Encoder Decoder free to use?
Yes, the Base64 Encoder Decoder is completely free. No sign-up, no limits, no hidden fees.
Is my data safe when using Base64 Encoder Decoder?
Yes. All processing happens directly in your browser. Your data is never sent to or stored on our servers.
Can I use Base64 Encoder Decoder on mobile?
Yes, the Base64 Encoder Decoder is fully responsive and works on all devices including smartphones and tablets.