Base64 Encoder / Decoder
Encode text to Base64 or decode Base64 back to text.
✅ 100% Free
🔒 Privacy First
⚡ Instant Results
What is a Base64 Encoder / Decoder?
Base64 is a binary-to-text encoding that represents binary data in an ASCII string format.
How to Use This Base64 Encoder / Decoder
- Choose Encode or Decode.
- Paste your text or Base64 string.
- Click Convert.
- Copy the result.
How It Works
The tool uses the browser's built-in btoa() and atob() functions, with UTF-8 handling.
Example Calculation
"Hello" encodes to "SGVsbG8=".
Frequently Asked Questions
Is Base64 encryption?
No. Base64 is an encoding, not encryption. It does not provide security.
Privacy & Data Processing
All processing happens in your browser.
Last updated: 2026-10-01