Developer
Browser-based
Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 to text. Fast, secure, and private.
Encoding and decoding happens entirely in your browser.
Features
- Encode text to Base64
- Decode Base64 to text
- Clear error messages for invalid Base64
- Copy result instantly
- Switch between encode and decode modes
Use Cases
- Encoding data for API headers
- Decoding Base64 responses
- Encoding email attachments (historically)
- Data encoding for web development
Frequently Asked Questions
Is Base64 encryption?
No. Base64 is an encoding scheme, not encryption. It's easily reversible and should not be used to hide sensitive data.
Why is my decoded text showing garbled characters?
This usually means the Base64 string was not valid UTF-8 text to begin with. It might be binary data or encoded with a different character set.
Is my data sent to any server?
No. All encoding and decoding operations happen entirely in your browser.
What is Base64 used for?
Common uses include encoding binary data for text-based protocols, embedding small images in CSS/HTML, and encoding API credentials.