How do I use the Image to Base64 Converter?

Upload an image file (JPEG, PNG, GIF, SVG, WebP, etc.). Select the output format: Data URI, Raw Base64, CSS, HTML, or Markdown. The encoded output appears automatically. Click Copy to copy the result to your clipboard.

Is the Image to Base64 Converter free?

Yes, the Image to Base64 Converter is completely free. It runs entirely in your browser with no signup, no download, and no data sent to any server.

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Image to Base64 Converter

Convert images to Base64 encoded strings. Output as data URI, raw base64, CSS, HTML, or Markdown.

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Image to Base64 Converter

Upload Image

Output Format

How to use

How to Use the Image to Base64 Converter

1 Upload an image file (JPEG, PNG, GIF, SVG, WebP, etc.).
2 Select the output format: Data URI, Raw Base64, CSS, HTML, or Markdown.
3 The encoded output appears automatically.
4 Click Copy to copy the result to your clipboard.

Base64 encoding converts binary image data into ASCII text, increasing file size by approximately 33%. Data URIs (data:image/png;base64,...) can be embedded directly in HTML, CSS, or JavaScript without separate HTTP requests. This is useful for small icons, logos, and sprites where reducing request count improves performance.

For images under 10KB, Base64 embedding often improves page load time by eliminating a round-trip request. For larger images, separate files with proper caching are more efficient. Common use cases include email templates (which can't reference external images reliably), single-file HTML documents, and CSS background images in stylesheets.

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