Convert images (PNG, JPEG, WEBP, SVG) to Base64 encoded Data URIs or decode Base64 strings back into downloadable image files. This runs locally in your browser, so files never touch a remote server.
Key Features of Image to Base64 Converter
- Image to Base64 Encoding Convert image files directly into standardized Base64-encoded text strings.
- Base64 to Image Decoding Reconstruct binary image files instantly from raw Base64 Data URI strings.
- Ready-to-Use Code Snippets Generate pre-formatted CSS background or HTML img tags.
- One-Click Copy Quickly copy compiled Base64 strings to your clipboard.
Image to Base64 Converter Examples
Encode website favicon
Convert a PNG favicon into a inline data string for HTML embedding.
Input
favicon.png (16x16)Output
data:image/png;base64,iVBOR...Decode image backup
Restore a back-end JSON-stored Base64 string back into a downloadable PNG file.
Input
data:image/png;base64,...Output
restored-image.pngHow to Use Image to Base64 Converter
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1. Upload an Image or Paste Base64
Drop a PNG, JPEG, WEBP, or SVG image to encode it, or paste an existing Base64 string into the input panel to decode it back to an image.
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2. Copy or Download the Result
For encoding, copy the Base64 Data URI to your clipboard for use in CSS or HTML. For decoding, download the reconstructed image file.
Common Use Cases for Image to Base64 Converter
- Reduce HTTP Requests Embed tiny interface icons or logos directly inside stylesheet rules.
- String-Based Storage Save asset files directly inside text database fields or JSON configs.
- Visual Reconstitution Validate or preview raw Base64 payload data as rendered files.
The Technical Details
Uses the HTML5 FileReader API to parse file streams into standardized data:image/…;base64 RFC-compliant data strings.
Frequently Asked Questions
What is a Base64 Data URI?
A Data URI is a compact text representation of a binary file (like an image) encoded in Base64. It can be embedded directly in HTML or CSS without a separate file request.
Which image formats are supported?
PNG, JPEG, WEBP, GIF, and SVG files can be encoded to Base64. Decoding works with any valid Base64-encoded image string.
Is there a file size limit?
There is no enforced limit. However, very large images produce very long Base64 strings and may slow down your browser's clipboard or DOM rendering.
Is my image uploaded anywhere?
No. Encoding and decoding both happen entirely in your browser using the FileReader and Canvas APIs. Nothing is sent to a server.