Image to Base64 Converter
Convert images to Base64 strings in your browser. No uploads, completely private.
Drag and drop an image here
or click to browse your files
Supports JPG, PNG, GIF, SVG, WebP (Max: 5MB)
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About Image to Base64 Converter
How It Works
- Upload or drop an image file (JPG, PNG, GIF, etc.)
- The tool converts your image into a Base64 string
- The resulting string can be copied and used directly in your code
- No server uploads - processing happens entirely in your browser
- Maximum file size supported is 5MB
Common Use Cases
- Embedding images directly in HTML using data URLs
- Including images in CSS without external files
- Storing images in JSON documents
- Creating single-file HTML applications
- Email templates that need inline images
- Reducing HTTP requests by inlining small images
Frequently Asked Questions
What is the Image to Base64 converter used for?
This tool converts image files into Base64 encoded strings, which can be embedded directly in HTML, CSS, or JSON files. This is useful for reducing HTTP requests, creating single-file applications, or including images in data that doesn't support binary files.
What image formats are supported?
The tool supports all common image formats including JPG/JPEG, PNG, GIF, SVG, WebP, BMP, and other formats that browsers can display. The format is preserved in the Base64 data URL.
What is the maximum file size I can convert?
The maximum file size limit is 5MB. This limit helps ensure good performance and prevents browser memory issues. For larger images, consider compressing them first using an image compression tool.
Is my image data sent to any server?
No, all conversion happens entirely in your browser using JavaScript. Your images are never uploaded to any server, ensuring complete privacy and security of your files.
How do I use the Base64 string in HTML?
You can use the Base64 string directly in an img tag like this: <img src="data:image/png;base64,iVBORw0KGgoAAAANS..."> The data URL includes the image format and the Base64 encoded data.
Can I use Base64 images in CSS?
Yes, you can use Base64 images in CSS background properties like this: background-image: url("data:image/png;base64,iVBORw0KGgoAAAANS..."); This eliminates the need for separate image files.
Why would I want to convert images to Base64?
Base64 conversion is useful for embedding images directly in code, reducing HTTP requests, creating email templates with inline images, storing images in JSON/XML documents, and building single-file apps.
Does Base64 encoding increase the file size?
Yes, Base64 encoding typically increases the file size by about 33%. However, this overhead is often offset by the elimination of HTTP request overhead, especially for small images.
Can I convert the Base64 string back to an image?
Yes, you can use our Base64 to Image converter tool to decode Base64 strings back into downloadable image files. The process is completely reversible.
What should I do if I get an error during conversion?
Common issues include: file too large (reduce size to under 5MB), unsupported format (try common formats like JPG/PNG), or corrupted file (try a different image). Make sure you're selecting a valid file.
Can I download the Base64 string as a file?
Yes, the tool provides a download button that saves the Base64 string as a .txt file. The filename includes the original image name for easy identification.
Is there a way to preview the image before conversion?
Yes, after selecting an image, you'll see a preview along with file information including name, type, and size. This helps verify you've selected the correct image before conversion.