Image to Base64 Converter
Convert images to Base64 strings or decode Base64 back to images. Supports PNG, JPG, GIF, WebP, SVG.
Click to upload or drag and drop
Supports: PNG, JPG, GIF, WebP, SVG, BMP, ICO
Frequently Asked Questions
1. What is Image to Base64 conversion?
Image to Base64 conversion encodes binary image data into a Base64 ASCII string format. This allows images to be embedded directly in HTML, CSS, or JSON without separate file requests. The format is: data:image/png;base64,<encoded_data>.
2. Which image formats are supported?
Our tool supports all common image formats including PNG, JPG/JPEG, GIF, WebP, SVG, BMP, and ICO. The output will include the correct MIME type in the Data URI.
3. Is there a file size limit?
Since all processing is done in your browser, the limit depends on your device memory. For very large images (over 5MB), the Base64 string will be quite long (about 1.37x the original size). We recommend keeping images under 2MB for best performance.
4. Is my data uploaded to your servers?
No. All conversion happens locally in your browser. Your images and data never leave your device, making this tool 100% private and secure.
5. How do I use the Base64 string in HTML?
You can use the full Data URI directly in HTML: <img src="data:image/png;base64,..."> or in CSS: background-image: url(data:image/png;base64,...). Note that embedding large images as Base64 can increase page load time.