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Image to Base64 Converter

Convert an uploaded image into a Base64-encoded data URI for embedding directly in CSS, HTML, or JSON.

Best for small assets (icons, logos, small illustrations) meant to be inlined directly into CSS/HTML/email — capped at 5MB since the output is the full encoded string, not a file.

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Frequently Asked Questions

Embedding an image directly inside CSS, HTML, or JSON without a separate file request — common for small icons, logos, or email-safe images.

Base64 encoding inflates size by about 33%, and the result is rendered as one long text string on this page rather than downloaded as a file — a 5MB cap keeps that readable and fast.

No. It's read into memory, encoded, and shown to you — nothing is saved to a database or file.