Image to Base64 Converter

An image to Base64 converter reads an image file and outputs its full data URL (data:image/…;base64,…) with one-click copy, ready to paste into an HTML img src, a CSS background or JSON. The file is read in your browser and never uploaded.

This tool converts any image file into a base64-encoded data URL, ready to paste directly into your code. Embedding a small image directly in your HTML or CSS this way avoids an extra network request — useful for tiny icons, inline SVG-style graphics, or email templates where linking to external images is unreliable (many email clients block remote image loading by default).

Choose your image and the tool immediately produces the full data:image/…;base64,… string, copy-ready with one click. Paste it directly as an `<img src="...">` value, a CSS `background-image: url(...)`, or a JSON field — anywhere a string is expected instead of a file reference.

Use this sparingly for genuinely small images: base64 encoding inflates the data by roughly 33% compared to the raw file, and large embedded images bloat your HTML/CSS in ways that hurt caching (the browser can't cache an inline image separately from the page it's embedded in). For anything beyond small icons or logos, a regular linked image file, ideally in WebP, usually performs better. Conversion runs entirely in your browser.

Developers also reach for this when building a component library or design system that needs to ship a handful of tiny icons with zero extra HTTP requests, or when embedding a small logo inside a generated PDF or email template where linking to an externally-hosted file risks being blocked or broken.