Image to Base64 Converter

Upload any image and instantly get its Base64 encoded data URL. Copy it directly for use in HTML, CSS, or JavaScript. All processing stays in your browser.

Drop an image here or click to browse

Supports JPG, PNG, WebP, SVG, GIF

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What is Base64 Encoding?

Base64 is a binary-to-text encoding scheme that represents binary data in an ASCII string format. It is commonly used to embed images directly into HTML, CSS, or JavaScript without needing separate image files.

A Base64 image string starts with data:image/png;base64, followed by the encoded data. This allows you to inline images in your code, reducing HTTP requests at the cost of slightly larger file sizes.

When to Use Base64

Use Base64 for small icons, email signatures, favicons, or CSS background images. For large images, stick with external files — Base64 adds about 33% to the file size.

Private & Secure

All encoding happens in your browser. Your images never leave your device — nothing is uploaded to any server.

Frequently Asked Questions

Base64 is used to embed binary data (like images) in text-based formats like HTML, CSS, and JSON. It is common in data URIs, email attachments, and API responses.
Yes. Base64 encoding increases the file size by approximately 33%. It is best suited for small images or icons where the extra size is worth the saved HTTP request.
Use the Base64 string as the src attribute: <img src="data:image/png;base64,iVBORw0KGgo...">. The output from this tool is ready to paste directly into your code.
Yes. SVGs work the same as any other image format. The tool will encode the SVG file and produce a data:image/svg+xml;base64 string ready for use.

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