Convert Image to Base64 Data URL in your browser

Generate a data:image/...;base64 string from an image file. DropFormat reads the file in your browser with FileReader.readAsDataURL(), so the image bytes never leave your device.

This page is for developer workflows: inline test fixtures, CSS prototypes, HTML emails, quick API payload checks, and bug reports that need a compact image sample. The output is the complete Data URL, including the MIME type prefix.

What the output contains

The tool keeps the browser-generated Data URL intact. For a PNG, the string starts with data:image/png;base64,. For JPG, WebP, SVG, GIF, AVIF, BMP, ICO, HEIC, or TIFF input, the browser includes the file’s declared image MIME type in the prefix.

Use the text output when you need the full Data URL. If an API expects only the base64 payload, remove everything through the first comma.

Local by design

Most image-to-base64 utilities upload the file before encoding it. DropFormat does the trivial browser-native operation directly in the tab and gives you the text result without a server round trip.