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Image to Base64 Converter — Free Online Tool

Convert any image to Base64 encoding instantly. Generate data URLs for embedding images directly in HTML, CSS, or JavaScript without external file references. Perfect for developers reducing HTTP requests or creating self-contained documents.

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Drop your image here or click to browse

Supports all image formats (Max 5MB)

Base64 Code

0 KB Original Size

0 Characters

About Image to Base64 Converter

The Image to Base64 Converter encodes any picture into a Base64 data URL you can paste straight into HTML, CSS, or JavaScript. Embedding small images this way removes extra network requests and keeps icons and logos loading instantly with your page.

All encoding is done locally in your browser, so your images are never uploaded to a server. It is a fast, private way for developers and designers to create self-contained documents and email templates.

How to Use Image to Base64 Converter

Click or drop an image into the upload area.
The tool instantly generates the Base64 data URL.
Click Copy to copy the full string to your clipboard.
Paste the code into your HTML, CSS, or JavaScript.

Key Features

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Encodes JPG, PNG, WebP, GIF, SVG, and more

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Generates a ready-to-use data URL with the correct mime type

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One-click copy of the entire Base64 string

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Shows original file size and character count

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100% client-side processing - images never leave your device

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Free to use with no signup

Frequently Asked Questions

What is Base64 encoding used for? ▼

Base64 turns an image into a text string so it can be embedded directly in HTML, CSS, or JavaScript, removing the need for a separate image file and an extra network request.

Are my images uploaded to a server? ▼

No. Encoding happens locally in your browser, so your images never leave your device.

Does Base64 make the image larger? ▼

Yes. Base64 increases the data size by roughly a third, so it is best for small images like icons and logos rather than large photos.

How do I use the code in HTML? ▼

Paste the full string into an img src attribute, for example a src that starts with data:image/png;base64 followed by the encoded characters.