Image to Base64 (Data URI) Converter
Convert any image to a Base64 data URI - for inline CSS or HTML
Everything runs locally - the image never leaves your browser. Base64 encoding inflates size by ~33%; only inline small icons, not photos.
So funktioniert's
- 1Drop an image
Drag a file into the drop zone or click to pick - up to 10 MB.
- 2See the size impact
Base64 inflates size by ~33%. The tool shows original size, encoded size, and the overhead.
- 3Copy the format you need
Data URI on its own, CSS background-image, or a full <img> tag.
Über Image to Base64 (Data URI) Converter
Free online image to Base64 converter. Drop or pick any image (PNG, JPG, SVG, GIF, WebP) to get a data URI ready to paste into CSS or HTML - with size analysis and one-click copy of the URI, a CSS declaration, or an <img> tag. Runs entirely in your browser. Image to Base64 (Data URI) Converter auf 712 Tools läuft komplett in deinem Browser über native JavaScript APIs - kein Server sieht je deine Daten. Das heißt: sofortige Ergebnisse, volle Privatsphäre und keine Upload-Limits.
Ob für eine Debugging-Session, einen schnellen Sanity Check oder einen Produktions-Incident - dieses Tool ist kostenlos so oft nutzbar, wie du willst. Keine Wasserzeichen, kein Signup und keine Ads im Tool selbst.
Häufige Fragen
Is the image uploaded?
No. The file is read locally via FileReader - nothing leaves your browser.
When should I inline an image?
For tiny icons (under a few KB) where an extra HTTP request costs more than the size overhead. Never inline photos - the ~33% Base64 overhead kills page weight.
What about SVGs?
SVGs work fine as data URIs and are often small enough to inline. Consider URL-encoding rather than Base64 for SVG - it's actually smaller.
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