Image to Base64/ Data URL Encoding
Convert images to Base64 encoding for Data URLs or embedding in CSS/HTML code, reducing HTTP requests.
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FAQ
What is this tool for?
Convert image files to Base64-encoded text strings. The Base64 output can be embedded in CSS background-image, HTML img tags, or transmitted as JSON data without additional image file requests.
When should I use Base64?
Ideal for small images (icons, small logos) embedded in code to reduce HTTP requests. Base64 increases file size by ~33%, so large images should reference files directly instead.
What is a Data URL?
A Data URL embeds file content directly in a URL format: data:[mediaType];base64,[base64]. Can be used in CSS background-image, HTML img src, or anywhere a URL is needed.
Are images uploaded?
No. All conversion happens locally using FileReader API. Your images never leave your device.