Image to Base64 Converter

Convert images to Base64 encoded strings and data URIs. Supports PNG, JPG, GIF, SVG, WebP. Drag & drop upload. Gratis, ingen registrering nødvendig.

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Drop an image here or click to select

Supports PNG, JPG, GIF, SVG, WebP, ICO

About Image Base64 Encoding

Converting images to Base64 strings allows you to embed them directly in HTML, CSS, or JSON without separate image files. This is useful for small icons (under 10KB), email templates, and reducing HTTP requests. The trade-off is a ~33% increase in data size compared to the binary original.

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How to Use

Drag & drop an image or click to select a file
View the Base64 string, data URI, HTML tag, and CSS snippet
Copy any format you need
Switch to 'Base64 → Image' tab to decode

Common Use Cases

Embedding small icons in HTML/CSS
Including images in email templates
Storing images in JSON/YAML configs
Reducing HTTP requests for small assets

Frequently Asked Questions

What image formats are supported?

PNG, JPG/JPEG, GIF, SVG, WebP, ICO, and BMP. Any image format your browser can display.

Is there a file size limit?

No hard limit, but Base64 encoding increases size by ~33%. Images over 10KB are generally not recommended for Base64 embedding.

Is my image uploaded to a server?

No. All conversion happens entirely in your browser. Your images never leave your device.