Frequently Asked Questions
What is Base64 encoding for images?
Base64 encoding converts binary image data into ASCII text characters. This allows images to be embedded directly in HTML, CSS, or JSON without requiring a separate file request, which can improve page load performance for small images.
When should I use Base64 images?
Base64 is ideal for small images (under 10KB) like icons, logos, and UI elements. It reduces HTTP requests and works great for email templates. For larger images, regular file references are more efficient since Base64 increases data size by about 33%.
Which image formats are supported?
This tool supports all major image formats: PNG, JPEG/JPG, GIF, SVG, WebP, and ICO. Each format is correctly identified and the appropriate MIME type is included in the generated data URI.
Can I convert Base64 back to an image?
Yes. This tool includes a reverse converter. Paste a Base64 string or data URI into the reverse conversion field and it will decode and display the image, which you can then download as a file.