Base64 File Converter
Convert files to Base64 and Base64 back to files
Base64 File Converter
Convert files to Base64 and Base64 back to files
About Base64 File Conversion
Base64 file conversion allows you to encode any file (images, documents, videos) into Base64 text format, making it possible to embed files directly into code, databases, or transmit them as text.
- Convert any file type to Base64 text format
- Decode Base64 back to original files
- Perfect for embedding images in HTML/CSS
- Store files in databases as text
- Secure client-side processing - files never leave your browser
How to Convert Files to Base64
- Upload your file - Click the upload area or drag and drop your file
- File to Base64 - Your file is instantly converted to Base64 text
- Copy Base64 string - Copy the encoded text for use in your projects
- Base64 to File - Paste Base64 text to convert back to downloadable file
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Frequently Asked Questions
What file types can I convert to Base64?
You can convert any file type to Base64 - images (JPG, PNG, GIF), documents (PDF, DOC), videos (MP4, AVI), audio files (MP3, WAV), and more. There are no file type restrictions.
Is there a file size limit?
Since conversion happens in your browser, the limit depends on your device's memory. Most files under 50MB convert quickly. Very large files may take longer to process.
Are my files secure during conversion?
Yes! All conversion happens locally in your browser using JavaScript. Your files never leave your device, ensuring complete privacy and security.
How do I use Base64 files in HTML?
For images, use: <img src="data:image/png;base64,YOUR_BASE64_HERE">. This embeds the image directly in your HTML without needing separate image files.
Can I convert Base64 back to the original file?
Absolutely! Base64 encoding is reversible. Paste your Base64 text into the decoder, and download the original file with the same quality and content.
Common Use Cases
- Embed images in HTML/CSS
- Store files in JSON/databases
- Email attachment encoding
- API file transmission
- Web development assets
- Mobile app resources
- Configuration file storage
- Backup and archival
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Data URI Format
When using Base64 files in web development, they're often formatted as Data URIs:
Format Structure:
data:[mediatype][;base64],data
Examples:
data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAAEAAAABCAYAAAAfFcSJAAAADUlEQVR42mP8/5+hHgAHggJ/PchI7wAAAABJRU5ErkJggg==
data:application/pdf;base64,JVBERi0xLjMKJcTl8uXrp/Og0MTGCXq...
Developer Examples
HTML Image Embedding:
<img src="data:image/png;base64,iVBORw0K..." alt="Embedded image" />
CSS Background:
.background {
background-image: url(data:image/png;base64,iVBORw0K...);
}
JavaScript File Handling:
// Convert file to Base64
const fileToBase64 = (file) => {
return new Promise((resolve) => {
const reader = new FileReader();
reader.onloadend = () => resolve(reader.result);
reader.readAsDataURL(file);
});
};
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