Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 back to plain text instantly
0 characters
Instant Processing
Encode and decode Base64 strings instantly in your browser with no server delays.
100% Private
All encoding and decoding happens locally in your browser. Your data never leaves your device.
UTF-8 Support
Full support for UTF-8 characters including emojis and international text.
About Base64 Encoding
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 email, URLs, and data URIs.
Common Use Cases:
- Embedding images in HTML/CSS (data URIs)
- Encoding binary data in JSON or XML
- Transmitting data over text-based protocols
- Basic obfuscation of text (not encryption!)
- Encoding credentials in HTTP Basic Authentication
Important Notes:
- Base64 is not encryption - it's just encoding
- Encoded data is approximately 33% larger than the original
- Anyone can decode Base64 - don't use it for sensitive data
- Use proper encryption (AES, RSA) for securing data
How to Use
1
Choose whether you want to Encode (text to Base64) or Decode (Base64 to text)
2
Enter your text or Base64 string in the input area
3
Click the Encode or Decode button
4
Copy the result or use the swap button to quickly encode/decode again
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