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Data URI Pro — Convert Files to CSS-Ready Data URIs

Convert a file to a Base64 data URI formatted for direct use in CSS. This covers the same core conversion as Data URI Generator on this site — both convert any file to a ready-to-use data: URI — use whichever fits your workflow.

How to use Data URI Pro

1. Upload your file.
2. Review the generated data URI.
3. Copy it into your CSS.

Frequently asked questions

Is this different from Data URI Generator?

They perform the same core conversion; this one is framed specifically around CSS usage — for a general-purpose file-to-data-URI conversion, either works.

Is my file uploaded anywhere?

No. Conversion runs entirely in your browser.

When should I avoid inlining a file as a data URI?

For anything reasonably large — inlining adds roughly 33% overhead and prevents separate browser caching of the asset.

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