Encode Images to Base64 for CSS

Convert small images and icons to Base64 data URLs for embedding directly in CSS or HTML.

Non é necesario iniciar sesión

Text to encode

CSS tips

🎨

Embed small SVG icons, favicons, or background images directly in your CSS as data URLs to eliminate extra HTTP requests.

📏

Only embed images under ~5 KB as Base64. Larger images increase CSS file size significantly and are better served as separate files.

💡

Base64 images in CSS look like: background-image: url("data:image/svg+xml;base64,PHN2Zy4uLg=="). Paste your encoded output after the comma.

⚡

For SVGs specifically, URL-encoding the raw SVG source is often more compact than Base64 — compare both before choosing.

Entra

Enter your data into the tool above. Everything stays local to your browser.

Proceso

The tool processes your data instantly in your browser using JavaScript. No server, no waiting.

Descargar

Get your result instantly. Nothing is stored after you leave the page — complete privacy.

✓Completamente gratuíto, sen custos ocultos, nunca

✓Non se precisa ningunha conta, correo electrónico ou inicio de sesión

✓Os ficheiros nunca saen do teu dispositivo

✓Non hai límites de tamaño de ficheiro

✓Non hai marcas de auga en ningunha saída

Encode API Data in Base64

Encode credentials, tokens, and payloads to Base64

Encode Files to Base64 for Email

Encode file attachments to Base64 for MIME email c

Decode and Inspect JWT Tokens

Decode the header and payload sections of a JSON W

Encode Binary Data for Text Transfer

Encode files or binary data to Base64 so they can