Free Base64 Encoder & Decoder Online
Encode text to Base64 or decode Base64 strings instantly. Handles UTF-8 characters and standard encoding schemes securely in your browser.
How to Use
Select Mode
Choose "Encode" to convert text to Base64, or "Decode" to convert Base64 back to text.
Enter Data
Type or paste your content into the input field. Conversion happens automatically.
Copy Result
Use the copy button to grab the result, or download it as a text file.
Instant Conversion
Zero latency processing. As you type, the tool instantly converts your data.
UTF-8 Support
Correctly handles special characters and emojis using standard encoding practices.
Privacy First
All processing happens in your browser. Your data never leaves your device.
Frequently Asked Questions
What is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's commonly used for encoding data in URLs, email attachments, and HTML images.
Is this tool secure?
Yes! All conversion happens entirely within your web browser. No data is sent to any server, ensuring your information remains private.
Does it support special characters?
Yes, our tool supports UTF-8 encoding, so it can correctly handle special characters, emojis, and non-ASCII text.