Image to Base64
Converter
Convert images to code instantly. Free
Supports PNG, JPG, WebP, GIF, SVG, BMP and AVIF
Generated code
Ready to copyAbout the Image to Base64 Converter
Whisser Image to Base64 Converter turns an image file into text you can paste straight into code, such as a Data URL, an HTML image tag or a CSS background. It is handy for small icons, email templates and quick prototypes. The conversion is free and runs in your browser with no upload.
How to use
- Click Upload Image, drop a file on the page, or paste an image from your clipboard.
- Pick an output format: Data URL, Base64 only, HTML image tag or CSS background.
- Click Copy code, or download the result as a TXT file.
Frequently asked questions
What is a Base64 image?
Base64 encodes the bytes of an image as plain text. Inside a Data URL such as data:image/png;base64,…, the image can be embedded directly in HTML, CSS or JSON without a separate file.
Which image formats can I convert?
PNG, JPG, WebP, GIF, SVG, BMP and AVIF files up to 15 MB.
Is my image uploaded to a server?
No. The file is read by your browser, so the image and the generated code stay on your device.
Why is the Base64 code larger than the image file?
Base64 uses four text characters for every three bytes, so the encoded text is about 33% larger than the original file. It works best for small images such as icons and logos.
What is the difference between Data URL and Base64 only?
A Data URL includes the data:image/…;base64, prefix and can be used directly as an image source. Base64 only gives the raw encoded string, which suits APIs and JSON fields that add the prefix themselves.
Is the converter free?
Yes. It is free to use and does not require an account.