Base64 Encode/Decode
Encode and decode Base64 text
About This Tool
Base64 Encode/Decode helps you encode and decode base64 text. Common searches include Base64 encode, Base64 decode, Base64 converter, making it useful for quick browser-based processing and immediate results.
Common Use Cases
- Base64 Encode/Decode：Clean up copied text, code, or API data
- Base64 Encode/Decode：Convert between different encodings and representations
- Base64 Encode/Decode：Check output quickly before sharing documentation or code
Practical Tips
- Keep the original input so you can compare or revert changes
- Process very large inputs in smaller sections to reduce browser memory use
Features
- ✓Encode text to Base64
- ✓Decode Base64 to text
- ✓Support Chinese and special characters
- ✓One-click copy result
- ✓Real-time encode/decode preview
How to Use
- 1Enter text to encode or decode in the input box
- 2Select encode or decode mode
- 3Results display in real-time in the output box
- 4Click copy button to copy result
FAQ
What is Base64 encoding used for?
Base64 is commonly used to transmit binary data over HTTP, such as embedding images in HTML/CSS or encoding API authentication info.
Does encoding increase text size?
Yes, Base64 encoding increases size by approximately 33%, as every 3 bytes of raw data encodes to 4 characters.