---
title: "Image Base64 Decode - Decode Base64 strings into image data"
description: "Decode Base64 strings or data URIs into images for preview. It can restore PNG, JPG, GIF, and other image data, which is useful for checking and saving Base64-encoded images."
canonical_url: "https://web-toolbox.dev/en/tools/base64-decode-image"
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  author: K
  "og:description": "Decode Base64 strings or data URIs into images for preview. It can restore PNG, JPG, GIF, and other image data, which is useful for checking and saving Base64-encoded images."
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> Index of every page on this site: [llms.txt](https://web-toolbox.dev/llms.txt)

# **Image Base64 Decode**

Decode Base64 strings into image files

**Base64 Text**

## **Base64 Decode Image**

## What is Image Base64 Decode Tool?

Image Base64 Decode Tool is a tool for previewing image data from a Base64 string or Data URL directly in the browser. It is useful when you want to check what an embedded image actually looks like in HTML, CSS, or API data.

This tool is designed for visual confirmation. Once you paste the string, it tries to display it immediately as an image, which makes it handy for checking embedded assets and validating Data URLs.

## How to Use

1. Paste the Base64 text into the input field.
2. Check the preview on the right.

Because the image updates immediately, you can quickly verify whether the Data URL is valid and whether it renders the expected image.

## Important Point

### A Data URL format string is required

This tool expects a string that can be used directly as the `**src**` of an `**img**` element. In practice, that means the string should include a prefix such as `**data:image/...;base64,**`.

Examples:

- `**data:image/png;base64,...**`
- `**data:image/jpeg;base64,...**`
- `**data:image/svg+xml;base64,...**`

If you paste only the raw Base64 body without the `**data:image/...**` part, the browser may not know how to interpret it as an image.

## Use Cases

- Checking the actual appearance of an HTML `**img src="data:image/..."**` value
- Previewing an image embedded in a CSS `**background-image**`
- Inspecting image data returned in an API response or JSON payload
- Verifying whether a generated Data URL is valid

## Input and Output Example

```text
data:image/png;base64,iVBORw0KGgoAAAANSUhEUg...
```

When you paste a Data URL string like this, the tool shows it as a PNG image preview.

## Things to Keep in Mind

- Strings without a Data URL declaration may not render correctly as images
- Very long strings or large images can become harder for the browser to handle
- This tool is for previewing image data, not for editing or re-saving the image

**How was your experience?**

Last updated: April 17, 2022

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- [<h4>**Pixel Art Converter**</h4>](https://web-toolbox.dev/en/tools/pixelart-converter)
- [<h4>**PNG Converter**</h4>](https://web-toolbox.dev/en/tools/png-converter)
- [<h4>**QR Code Reader**</h4>](https://web-toolbox.dev/en/tools/qrcode-reader)
- [<h4>**Rounded Corner Image Generator**</h4>](https://web-toolbox.dev/en/tools/rounded-corner-image-generator)
- [<h4>**SVG Blob Generator**</h4>](https://web-toolbox.dev/en/tools/svg-blob-generator)

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