Base64 Encoder and Decoder
A free online tool to encode text to Base64 or decode Base64 back to text. Base64 encoding is used to represent binary data in ASCII text format, making it safe for transport through text-only systems or inclusion in HTML and other documents.
How to Use the Base64 Encoder/Decoder
To Encode Text to Base64:
- Select "Encode to Base64" mode
- Enter or paste your text in the input field
- The Base64 encoded result will appear automatically
- Use the copy button to copy the result to your clipboard
- Use the download button to save the result as a text file
To Decode Base64 to Text:
- Select "Decode from Base64" mode
- Enter or paste the Base64 encoded text in the input field
- The decoded text will appear automatically
- Use the copy button to copy the result to your clipboard
- Use the download button to save the result as a text file
About Base64 Encoding
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It is designed to carry data stored in binary formats across channels that only reliably support text content.
Base64 is commonly used for:
- Embedding images in HTML or CSS
- Sending binary data in email attachments
- Storing complex data in XML or JSON
- Transmitting binary data over text-based protocols
- Encoding credentials in basic authentication headers
The "Base64" name comes from the encoding's character set, which uses 64 different characters (A-Z, a-z, 0-9, +, /) to represent binary data, with = used as a padding character.
FAQ
Is this Base64 encoder/decoder tool free to use?
Yes, our Base64 encoder/decoder is completely free to use with no registration required. You can use it as often as you need with no limitations.
Is my data secure when using this tool?
Absolutely. Our Base64 encoder/decoder processes all data in your browser. We don't store, share, or see any of your content. Your data never leaves your device.
What happens if the text can't be encoded or decoded?
If your input contains characters that cannot be encoded to Base64 or if you're trying to decode invalid Base64 text, you'll see an error message in the result field. Make sure your input is valid for the selected operation.
Can I use this tool on mobile devices?
Yes, our Base64 encoder/decoder is fully responsive and works on all devices including smartphones, tablets, and computers.
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