Base64 to Image Converter

Decode Base64 string to image and preview it in your browser

Accepts raw Base64 or full data URI (e.g. data:image/png;base64,...)

What is Base64 to Image Converter?

The Base64 to Image Converter is a free online tool that decodes Base64 encoded strings back into viewable and downloadable image files, all processed locally in your browser. Base64 image encoding is commonly used to embed images directly in HTML, CSS, JSON payloads, and email templates as data URLs. When you receive a Base64 encoded image from an API response, need to preview an image stored as Base64 in a database, or want to extract an embedded image from HTML source code, this tool decodes it instantly. Simply paste the Base64 string or the complete data URL (data:image/png;base64,...) and the tool renders the image immediately so you can view and download it as a PNG, JPG, or other image file.

Why Use DevBench Base64 to Image Converter?

DevBench Base64 to Image Converter runs entirely in your browser — your data never leaves your device. No sign-up, no limits, no watermarks, completely free forever.

How to Use Base64 to Image Converter

  1. Paste the Base64 string or complete data URL into the input field
  2. The tool automatically detects the image format from the data URL prefix
  3. View the decoded image preview instantly in the browser
  4. Click the Download button to save the image to your device
  5. Use for previewing Base64 images from APIs, databases, or HTML source

Examples

  • Decode a Base64 image from a JSON API response to view it
  • Preview a Base64 encoded logo stored in a database field
  • Extract and download an image embedded in HTML as a data URL
  • Decode a Base64 image from an email template to view it
  • Preview a Base64 encoded thumbnail from a file upload API

Use Cases

  • Previewing Base64 encoded images from API responses
  • Extracting images embedded as data URLs in HTML source code
  • Decoding Base64 images stored in database fields
  • Previewing Base64 encoded email attachments
  • Extracting images from CSS background-image data URLs
  • Debugging Base64 image encoding in web applications
  • Downloading images embedded in JSON API payloads
  • Previewing Base64 encoded thumbnails from file upload APIs
  • Extracting images from Base64 encoded PDF content
  • Decoding Base64 images for mobile app development testing

Frequently Asked Questions

What is a Base64 data URL?

A Base64 data URL is a complete image embedded as text in the format: data:[mediatype];base64,[data]. For example: data:image/png;base64,iVBORw0KGgo... The media type tells the browser what kind of image it is, and the Base64 data is the encoded binary content of the image file.

What image formats can be decoded?

The tool can decode any image format that browsers support, including PNG, JPG/JPEG, GIF, WebP, SVG, BMP, and ICO. The format is determined by the media type in the data URL prefix (e.g., data:image/png means PNG format).

What if I only have the Base64 string without the data URL prefix?

If you only have the raw Base64 string without the data:image/...;base64, prefix, the tool will attempt to decode it and assume PNG format. For best results, include the full data URL with the correct media type prefix.

Is there a size limit for Base64 images?

The tool handles Base64 strings up to approximately 10MB in the browser. Very large Base64 strings may cause slow rendering or browser memory issues. Base64 encoding increases file size by about 33%, so a 7.5MB Base64 string represents roughly a 5MB image.

Can I convert the image back to Base64?

Yes, use the Image to Base64 converter tool to encode any image file back to Base64 format. This is useful when you need to embed images in HTML, CSS, or JSON payloads.