Base64 Encoder Decoder - Encode & Decode Base64 Online
Free Base64 encoder and decoder for data conversion. Encode text to Base64 format and decode Base64 strings back to readable text instantly.
💡 What is Base64?
Base64 is a binary-to-text encoding scheme that represents binary data as ASCII text. It's commonly used in email, web development, and data storage to encode binary data for safe transmission over text-based protocols.
🔐 Secure Encoding
Safe Base64 encoding and decoding with proper UTF-8 character support for all text types.
🌍 Unicode Support
Full support for Unicode characters including emojis, international text, and special symbols.
⚡ Instant Results
Real-time encoding and decoding with immediate results. Perfect for development and testing.
Common Base64 Use Cases
Web Development
- Embedding images in CSS/HTML
- API authentication tokens
- Data URLs for small files
- JWT token encoding
Data Processing
- Email attachment encoding
- Configuration file storage
- Binary data transmission
- Database text storage
How to Use Base64 Encoder Decoder
Base64 Encoding
- Enter your text in the input area
- Click "Base64 Encode" button
- Copy the Base64 encoded result
- Use in your application or storage
Base64 Decoding
- Paste your Base64 string
- Click "Base64 Decode" button
- Copy the decoded readable text
- Use the original content
Frequently Asked Questions
What is Base64 encoding used for?
Base64 encoding is used to convert binary data into ASCII text format. It's essential for email attachments, embedding images in HTML/CSS, API tokens, and safely transmitting binary data over text-based protocols.
Is Base64 encoding secure?
Base64 is not encryption - it's just encoding. Anyone can decode Base64 text, so don't use it for security purposes. Use proper encryption for sensitive data.
Can I decode any Base64 string?
You can decode any valid Base64 string. If the string is invalid or corrupted, the decoder will show an error message.
Does this tool support large files?
This tool is designed for text content. For large files or binary data, consider using specialized tools or programming libraries for better performance.