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How to Convert Base64 to Image - Step by Step Guide

Step 1

Paste Your Base64 String

Start by pasting your Base64 encoded image string into the input editor. The tool automatically detects the image format (PNG, JPEG, GIF, WebP, BMP, or SVG).

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Paste directly: Copy your Base64 string from an API response or file
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Upload a file: Click "Upload" to select a text file containing the Base64 string
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Try the sample: Click "Sample" to load an example image to see how the converter works

Example: Base64 Image String

Different image formats have distinctive Base64 signatures:

iVBORw0KGgoAAAANSUhEUgAA...
# PNG image format

/9j/4AAQSkZJRgABAQAAAQ...
# JPEG image format

R0lGODlhAQABAIAAAP///...
# GIF image format
Step 2

Automatic Conversion

The tool automatically validates and converts your Base64 string to an image with instant preview. No button clicks required - conversion happens as soon as you paste the string.

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Instant preview: See your image immediately in the browser
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Format detection: Automatically identifies PNG, JPEG, GIF, WebP, BMP, and SVG formats
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Real-time validation: Checks if the Base64 string is valid and represents an image
Step 3

Preview and Download

View the decoded image in the preview panel. Once you've verified it's correct, enter a filename and click "Download" to save the image to your computer in its original format.

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Web development: Extract images from CSS data URIs or HTML
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Email attachments: Decode images embedded in email systems
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API responses: Extract image data from JSON API responses

What is Base64 to Image Decoding?

Base64 to Image decoding converts Base64 strings back into image files (PNG, JPEG, GIF, WebP). This is essential for extracting images from API responses and data URIs.

The decoder uses FileReader API to process images, supporting all major formats with instant preview and download capabilities.

Frequently Asked Questions

How do I convert Base64 string to an image?

Simply paste your Base64 encoded string into the input editor. The tool automatically detects the image format and displays it with instant preview. Click download to save the image to your computer. For the reverse process, use the Image to Base64 encoder.

What image formats are supported?

The tool supports all common image formats including PNG, JPEG, GIF, WebP, BMP, and SVG. The format is automatically detected from the Base64 string signature.

Can I decode Base64 images from CSS or HTML?

Yes! The tool accepts both plain Base64 strings and data URIs (data:image/png;base64,...). Just paste the entire data URI or extract the Base64 portion - both formats work.

Is there a file size limit for Base64 to image conversion?

The tool can handle Base64 strings of various sizes efficiently. For very large images, the browser may take a moment to process the conversion, but there are no artificial size restrictions.

Is my image data secure during conversion?

Absolutely! All Base64 to image conversion happens entirely in your browser using client-side JavaScript. Your image data is never uploaded to any server, ensuring complete privacy and security.

Is this Base64 to Image converter free to use?

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

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