Image to Base64 Converter Online
Convert images to Base64 strings or decode Base64 back to image online. Free, instant, supports PNG, JPG, WEBP, GIF. 100% client-side — your images are never uploaded to any server.
Frequently Asked Questions about Base64 Image Converter
How do I convert an image to Base64?
Drag and drop your image onto the Encoder tab, or click to select a file. The Base64 string is generated instantly in your browser. Copy the result with the copy button.
How do I convert Base64 back to an image?
Switch to the Decoder tab and paste your Base64 string. The image is previewed instantly, and you can download it back as an image file with the Download button.
How do I use Base64 images in HTML or CSS?
Copy the generated Base64 string and use it as a data URI in HTML: <img src="data:image/png;base64,..."> or in CSS: background-image: url('data:image/png;base64,...'). This embeds the image directly without a separate file request.
Is this Base64 image converter secure?
Yes, all processing is done locally in your browser. Your images are never uploaded to any server, ensuring complete privacy.
What image formats are supported?
We support all major web formats including PNG, JPEG, WEBP, and GIF for both encoding and decoding.
Can I download the decoded image?
Absolutely. Once you paste a valid Base64 string, you can preview the image and click the download button to save it back to your device.
Is there a size limit for images?
While we don't have a strict limit, we optimize large images during encoding to ensure the resulting Base64 string remains manageable for web use.