Base64 to Image Converter
Click to upload or drag and drop
Supports TXT files
How to Convert Base64 to Image
- Use our free online Base64-to-image converter to decode your Base64 string back into images. Simply paste your Base64 string and click on the Convert to Image button to instantly view the resulting image.
- Alternatively, switch to the Upload File tab and upload a text file containing your Base64 string, then click Convert to Image to view the result. Drag and drop is also supported.
- The decoded image appears below the converter. The tool automatically detects the format (PNG, JPG, GIF, WebP, SVG, or HEIC).
- This tool is perfect for developers and designers who need a quick way to convert Base64 data back into images. It is free, easy to use, and works in all major browsers.
What is Base64 to Image Conversion?
Base64 to Image conversion is the reverse of image encoding — it takes a Base64 text string and decodes it back into a viewable image. Developers use this to verify encoded data, debug API responses, preview embedded images, or recover images from data URIs in HTML and CSS.
A Base64 string looks like a long sequence of letters, numbers, plus signs, and slashes. Our tool reads that text, identifies the image format, and renders the original image in your browser.
Key Features of Our Base64 Decoder
- Two input methods: Paste text directly or upload a
.txtfile — choose whichever suits your workflow. - Automatic format detection: Supports PNG, JPEG, GIF, WebP, SVG, ICO, and HEIC without you specifying the format.
- HEIC support: HEIC images (common on iPhones) are automatically converted to JPEG for display using the heic2any library.
- Large string handling: Strings larger than 1.2 MB are handled via file upload for smooth performance.
- 100% browser-based: All decoding runs locally in JavaScript. Nothing is sent to our servers.
- Free and unlimited: No registration, no limits, no watermarks.
- Cross-browser compatible: Works on Chrome, Firefox, Safari, Edge, and mobile browsers.
Supported Image Formats
Our decoder automatically recognizes these formats from the Base64 string prefix:
- PNG — lossless images, icons, screenshots
- JPEG / JPG — photographs and compressed images
- GIF — animated and static graphics
- WebP — modern compressed format
- SVG — scalable vector graphics
- ICO — favicon and icon files
- HEIC — Apple device photos (converted to JPEG for preview)
When to Use This Tool
- Verify encoding: After using our Image to Base64 Converter, paste the output here to confirm the image decodes correctly.
- Debug APIs: Preview Base64 image data returned from REST APIs or GraphQL responses.
- Inspect data URIs: Decode
data:image/png;base64,...strings found in HTML or CSS source code. - Recover images: Turn Base64 text stored in databases, logs, or JSON files back into viewable images.
Example: Decoding a Data URI
If you have an HTML img tag like this:
<img src="data:image/png;base64,iVBORw0KGgoAAAANSUhEUg...">Copy only the Base64 part after the comma (iVBORw0KGgoAAAANSUhEUg...) and paste it into our tool to see the image.
Frequently Asked Questions (FAQs)
It is the process of decoding a Base64-encoded text string back into its original image format. This lets you preview, verify, or work with images that have been stored or transmitted as text.
No. All decoding happens entirely in your browser using JavaScript. Your Base64 strings and images never leave your device. We do not store, log, or transmit any of your data.
Our tool auto-detects PNG, JPEG, GIF, WebP, SVG, ICO, and HEIC formats. For HEIC images, the tool converts them to JPEG for browser display since most browsers cannot render HEIC directly.
Yes. Switch to the Upload File tab and select a .txt file containing your Base64 string. You can also drag and drop the file into the upload area. This is especially useful for very large Base64 strings.
When you paste a string larger than 1.2 MB, the tool automatically converts it to a file upload for better performance. You can also manually use the Upload File tab for large strings.
You can paste either the raw Base64 string or a full data URI (e.g., data:image/png;base64,iVBORw0...). The tool handles both formats and automatically detects the image type.
After encoding an image with our Image to Base64 Converter, copy the output and paste it here. If the original image appears, your encoding was successful.
Most web browsers cannot display HEIC images directly. Our tool uses the heic2any library to convert HEIC to JPEG for preview. The original Base64 data remains valid HEIC format — only the display is converted.
Common causes include invalid Base64 characters, truncated strings, or corrupted data. Make sure your string contains only valid Base64 characters (A-Z, a-z, 0-9, +, /, =). Remove any whitespace or line breaks, or let the tool clean them automatically.
Yes. The tool is fully responsive and works on smartphones and tablets. You can paste Base64 strings or upload text files directly from your mobile device.