Image → Base64
Base64 → Image
Drop image here or click to upload
Supports JPG, PNG, GIF, WebP, SVG | Max 10MB
Why Use Our Image to Base64 Converter?
100% Private
Images are converted entirely in your browser. Nothing is uploaded to any server.
Multiple Formats
Get output as Data URL, pure Base64, HTML img tag, or CSS background property.
Two-Way Conversion
Convert images to Base64 and also decode Base64 back to downloadable images.
Size Information
See original file size vs Base64 size to understand the encoding overhead.
Frequently Asked Questions
What is Base64 encoding for images?
Base64 encoding converts binary image data into ASCII text. This allows images to be embedded directly in HTML, CSS, or JSON without separate file requests. The format is data:image/type;base64,encoded_data.
When should I use Base64 images?
Base64 is useful for: small icons to reduce HTTP requests, email HTML templates, embedding images in CSS, storing images in databases, and API responses. Avoid it for large images as it increases size by ~33%.
Why is the Base64 size larger than the original?
Base64 encoding increases size by approximately 33% because it converts binary data to a text format using only 64 safe ASCII characters. This tradeoff enables text-based transmission and embedding.
What's the difference between Data URL and pure Base64?
A Data URL includes the MIME type prefix (data:image/png;base64,) and can be used directly in HTML src or CSS url(). Pure Base64 is just the encoded string, useful when you handle the MIME type separately.
Can I convert Base64 back to an image?
Yes! Use the "Base64 → Image" tab to paste a Base64 string or Data URL. The tool will decode it and let you download the resulting image file.
