Base64 Encoder/Decoder
Encode text to Base64 or decode Base64 strings back to text. Upload files to encode them or decode Base64 data. Free online tool with instant results.
Base64 output will appear here...
Text Encoding
Encode any text string to Base64 format for safe transmission and storage.
File Upload
Upload files to encode them to Base64. Supports images, documents, and any file type.
Instant Decoding
Decode Base64 strings back to their original text format with validation.
Encoding Examples:
- • Embed images in HTML/CSS
- • Store binary data in JSON
- • Send files via API
- • Encode credentials
Decoding Examples:
- • Extract embedded images
- • Decode API responses
- • Convert stored data
- • Debug encoded content
What is Base64 Encoding?
Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It's widely used in web development, email systems, and data transmission where binary data needs to be stored or transferred as text.
Common Use Cases for Base64
- Embedding Images in HTML/CSS: Convert images to Base64 to embed them directly in your code, eliminating the need for separate image files.
- API Data Transmission: Send binary data through JSON APIs that only accept text.
- Email Attachments: Encode file attachments in email systems that only support text.
- Data Storage: Store binary data in text-based databases or configuration files.
- Authentication: Encode credentials and tokens in HTTP headers.
How Our Base64 Tool Works
Our free Base64 encoder/decoder tool provides a simple, secure way to convert between text and Base64 format. Simply paste your text or upload a file, and get instant results. The tool supports both encoding (text to Base64) and decoding (Base64 to text) operations.
Key Features
- Text Encoding: Convert any text string to Base64 format
- File Upload: Upload and encode files of any type
- Instant Decoding: Decode Base64 strings back to original text
- Copy to Clipboard: One-click copying of results
- Download Results: Save encoded/decoded data as files
- No Registration: Use immediately without creating an account
Why Choose Our Base64 Tool?
Unlike other online tools that may store your data or require registration, our Base64 converter processes everything locally in your browser. Your data never leaves your device, ensuring complete privacy and security. Plus, it's completely free to use with no limitations.
Developer Tips
- • Base64 encoding increases file size by approximately 33%
- • Use Base64 for small files and images; for larger files, consider file hosting
- • Always validate Base64 strings before decoding in production code
- • Consider using data URLs (data:image/png;base64,...) for web images