Base64 to Image Converter Online - Free & Secure
Need to quickly find out what’s hidden behind a long string of characters in your code? Our Base64 to Image Converter is a professional tool for both developers and everyday users, instantly decoding text data back into image format.
Whether you’re working with an API response, analyzing website source code, or extracting data from a database, our tool allows you to visualize and download encoded files in seconds. We support not only decoding but also instant format conversion (e.g., saving a Base64 PNG string as a JPG file).
What is Base64 and What is it Used For?
Base64 is a method for encoding binary data (such as images) into a set of ASCII characters. This allows multimedia to be transmitted through channels originally designed only for text – such as emails, XML files, or JSON responses.
The disadvantage of this encoding is that it is unreadable to humans. It looks like a random mix of letters and numbers (e.g., /9j/4AAQSk...). Our tool takes this “jumble”, converts it back to binary data, and renders it as a visible image.
What Can Our Base64 Image Decoder Process?
Our parser is designed to be as “foolproof” as possible and can handle various inputs:
- Data URI Scheme: The standard format used in CSS and HTML (e.g.,
data:image/png;base64,iVBORw...). Our tool automatically recognizes the header, determines the file type, and decodes the rest. - Pure Base64 String (Raw String): Do you only have the data itself without a header? No problem. Paste the code, and we’ll try to reconstruct the image.
- HTML
<img>tags: A common situation when scraping websites. Have you copied the entire tag<img src="data:image..." />? No need to clean it manually. Paste it whole, and our script will extract the data itself.
Flexible Output: On-the-Fly Format Conversion
Don’t just want to see what’s in the code, but need the file in a specific format? Our tool also functions as a converter:
- Keep Original (Auto): The tool respects the MIME type in the header. If the data indicates it’s a PNG, you’ll download a PNG.
- JPG / JPEG: Ideal for photos. If you have a Base64 code representing a huge PNG, you can directly convert it to JPG during decoding and save space.
- PNG: Choose for graphics, icons, and logos. If you decode data containing transparency, the PNG format will preserve it.
- WebP: Modernize your assets. Convert old Base64 code directly into the optimized WebP format that Google loves.
100% Security: Base64 Decoding Happens On Your Device
Working with sensitive data? Base64 strings often contain private documents, invoice scans, or internal company graphics. Using common online converters can be a security risk because they send data to external servers.
We do it differently. Our tool is built on Client-Side technology.
- All decoding occurs directly in your browser’s memory using JavaScript.
- Neither the pasted text nor the resulting image are ever sent to our server.
- It works even if you disconnect from the internet.
This makes the tool not only completely secure but also extremely fast, as you don’t wait for data upload and download.
Who Will Benefit Most from This Tool?
- Frontend Developers: When they need to extract icons or graphics embedded directly in a CSS file as a Data URI.
- Backend Developers and Testers: When debugging APIs that return images encoded in a JSON response.
- Data Analysts: For reconstructing files stored in databases as text BLOB/Base64 fields.
- Email Marketing Specialists: To retrieve images that are “embedded” directly in the email’s source code.
How to Convert Base64 Strings to Images?
- Paste Data: Copy the Base64 string into the large text field. It doesn’t matter if it contains spaces, newlines, or surrounding HTML tags.
- Choose Format: In the “Output Format” dropdown, leave the option as Automatic, or force a conversion (e.g., to WebP).
- Convert: Click the “Convert to Image” button.
- Check and Download: An image preview will instantly appear below the button. If it’s what you were looking for, click “Download Image” and save the file to your disk.