Frequently asked questions
Upload or drag and drop your image - JPG, PNG, WebP, AVIF, GIF, SVG, BMP or TIFF - and the Base64 string appears instantly. Copy the Base64, copy the full data URI, or download it as a .txt file.
Yes. It's completely free, works entirely in your browser, and doesn't require an account or any software installation.
No. The encoding happens entirely on your device using your browser's built-in file reader - your image is never uploaded or sent anywhere.
The Base64 string is just the encoded image data. The data URI wraps that string with a scheme prefix (like data:image/png;base64,...) that browsers and CSS understand directly in a src or url() property.
Yes - this tool works with PNG to Base64, JPG to Base64, and every other format listed above. The output format is always the same: a Base64-encoded text string ready to paste anywhere.
Base64-encoded images can be embedded directly in HTML, CSS or JSON without a separate file request - useful for small icons, inline email images, or storing images inside a database or config file.
Yes, by design - Base64 encoding trades file size for portability, typically adding about 33% to the original size, since binary data is represented using only text-safe characters.