Developer Tools

Base64 to Image Converter

A fast, client-side Base64 to Image Converter. Paste Base64 strings, Data URIs, or upload text files to instantly decode and preview images. Automatically detects image formats like PNG, JPG, WebP, and GIF using magic byte sniffing. Generates HTML and CSS snippets, and allows downloading the decoded image directly.

Decode Base64 encoded strings and Data URIs back into images instantly. Magic byte sniffing auto-detects formats like PNG, JPG, and WebP.

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What is the Base64 to Image Converter?

The FreeTechLearner Base64 to Image Converter takes a Base64-encoded string (or Data URI) and decodes it back into a visual image. It provides file statistics, image dimensions, and download options.

How to Use

  1. Paste your Base64 string or Data URI into the input box.
  2. Alternatively, upload a .txt file or drag-and-drop a text file containing the Base64 data.
  3. View the live image preview and file statistics.
  4. Click "Download Image" to save the file to your computer.

Common Use Cases

  • Extracting embedded images from JSON API responses.
  • Viewing images embedded in HTML email source code.
  • Recovering images from database dumps where files were stored as Base64.
  • Testing and verifying Base64 encoded assets during web development.

Key Benefits

  • 100% private — files are processed locally in your browser.
  • Auto-detects image formats (Magic Byte Sniffing) for raw Base64 strings.
  • Provides instant visual previews and exact file dimensions.
  • Generates copy-paste HTML and CSS code snippets.

Frequently Asked Questions

What formats are supported?

The tool automatically detects and decodes PNG, JPG/JPEG, WebP, GIF, SVG, BMP, and ICO formats.

Do I need to include the "data:image/..." prefix?

No! If you paste a raw Base64 string without the Data URI prefix, the tool will automatically analyze the "magic bytes" of the data to determine the correct image format.

Is my decoded image safe?

Yes. All decoding happens 100% locally in your web browser using HTML5 and JavaScript. The Base64 string is never sent to a server.

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