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How to Convert Image to Base64 - Step by Step Guide

Step 1

Upload Your Image File

Start by clicking the "Upload Image" button or drag and drop your image file into the designated area. The tool accepts all common image formats up to 10MB in size.

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Supported formats: PNG, JPEG, GIF, WebP, BMP, and SVG
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Size limit: Maximum 10MB per file
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Drag & drop: Simply drag your image into the upload area
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Try the sample: Click "Sample" to test with an example image
Step 2

Automatic Conversion

The tool instantly converts your image to a Base64 encoded string. You'll see the output displayed in the editor on the right side with a preview of your image on the left.

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Instant conversion: No waiting or processing delays
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Image preview: See your uploaded image before encoding
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Clean output: Pure Base64 string without data URI prefix
Step 3

Copy or Download

Click "Copy" to copy the Base64 string to your clipboard, or "Download" to save it as a text file. The Base64 string is ready to use in your applications, CSS, or HTML.

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CSS data URIs: Embed images in stylesheets to reduce HTTP requests
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HTML inline images: Embed images directly in HTML without external files
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API payloads: Send images in JSON or XML requests
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Email templates: Embed images in email without attachments

Frequently Asked Questions

How do I convert an image to Base64?

Simply upload your image using the "Upload Image" button or drag and drop it into the tool. The conversion to Base64 happens instantly. You can then copy or download the Base64 string. To convert back, use the Base64 to Image decoder.

What is the maximum image size?

The tool supports images up to 10MB. For larger images, consider compressing or resizing them first. Note that Base64 encoded images are about 33% larger than the original file size.

Is my image secure during conversion?

Yes! All conversion happens entirely in your browser using client-side JavaScript. Your image is never uploaded to any server, ensuring complete privacy.

Why would I need to convert images to Base64?

Base64 encoding is useful for embedding images in CSS or HTML files, sending images in JSON APIs, storing images in text-based databases, creating data URIs, or reducing HTTP requests by inlining small images.

Does the tool include the data URI prefix?

No, the tool outputs only the pure Base64 string without the data URI prefix. If you need the full data URI format for HTML or CSS, simply prepend data:image/[type];base64, to the output.

Is this Image to Base64 converter free?

Yes, completely free with no file limits, no registration required, and unlimited conversions. All features are available at no cost with full privacy protection.

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