Image to Base64 Converter – Free Online Encoder

Image to Base64 – Free Online Tool

Our free Image to Base64 converter encodes any picture into a Base64 string or ready-to-use data URI. Upload an image and copy code you can paste straight into HTML, CSS or JSON.

What is Image to Base64?

Converting an image to Base64 turns the file into plain text. That text can be embedded directly in a web page or stylesheet, so the browser does not have to download a separate file.

It is great for small icons, logos in email templates and images inside JSON APIs, but large photos become about a third bigger as Base64, so use it wisely.

How to use the Image to Base64

1. Click to upload or drag and drop your image.
2. Wait a moment while the image is encoded.
3. Copy the Base64 string or the full data URI.
4. Paste it into an <img src="..."> tag, CSS background or your code.

Key features

• Supports PNG, JPG, GIF, WebP, SVG and more
• Outputs raw Base64 and data URI formats
• One-click copy
• Free, quick and simple

Common use cases

• Embedding small icons in CSS to reduce HTTP requests
• Adding logos to HTML email templates
• Sending images through JSON APIs
• Creating self-contained HTML files

Frequently asked questions

Should I convert large images to Base64?

Usually not. Base64 is about 33% larger than the original and cannot be cached separately. It works best for small images.

Which image formats work?

Common formats such as PNG, JPG, GIF, WebP, BMP and SVG are supported.

How do I use the result in HTML?

Place the data URI inside the src attribute of an img tag.

Related free tools

• Base64 to Image
• Base64 encoder
• Image optimizer
• png to jpg
• jpg to png
• webp to png