Free Online Tool

Image to Base64 Converter

Free image to Base64 converter. Upload any image and get its Base64 data URI. Copy as raw Base64, an HTML img tag, or a CSS background url() value.

Click to upload or drag & drop an image here

PNG, JPG, GIF, SVG, WEBP

What is this tool?

Image to Base64 converter reads an image file and encodes it as a Base64 data URI string. This lets you embed images directly in HTML, CSS, or JavaScript without needing a separate image file or HTTP request.

Why use this tool?

Embedding small images as Base64 reduces HTTP requests and can speed up page loads. It is perfect for icons, logos, and small UI graphics. This tool also generates ready-to-paste HTML img tags and CSS background-url values.

Tips & Best Practices

  • Only Base64-encode small images (under 10KB) — larger images are better served as files
  • Base64 encoding increases file size by about 33%
  • Great for email templates where external images may be blocked
  • Use CSS data URIs for background images in critical above-the-fold content

Frequently Asked Questions

Is my data safe?

Yes. Everything runs in your browser. No images are uploaded to any server.

What image formats are supported?

All browser-supported formats: PNG, JPG, GIF, SVG, WEBP, BMP, and ICO.

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