Image to Base64 converter
Upload an image, preview it instantly, and generate either a raw Base64 string or a full data URL for embeds, APIs, JSON payloads, or quick development work.
Drop an image here
PNG, JPG, WEBP, GIF, SVG and other browser-supported image files are accepted.
Encoding Controls
Local only
Nothing is uploaded. Conversion happens in your browser.
Raw Base64 is useful for APIs and JSON payloads. Full data URLs are best when you want to paste directly into HTML `src=""`, CSS `url(...)`, or inline prototypes.
Developer Guide
Frequently Asked Questions
What is an Image to Base64 Converter?
An Image to Base64 Converter is a developer tool that translates a binary image file (like PNG, JPG, SVG) into a string of ASCII characters. This allows you to embed the image directly into HTML, CSS, or JSON without needing to host the image file externally. It is widely used by frontend developers to reduce HTTP requests and optimize web page loading speeds.
Raw Base64 is just the encoded string itself. It is usually used when sending image data via JSON APIs. A Data URL includes the raw string but prefixes it with the MIME type (e.g.,
data:image/png;base64,...). Data URLs can be pasted directly into an HTML <img src="..."> tag or CSS background-image: url(...).
Absolutely not. Our Image to Base64 converter relies completely on your browser's local FileReader API. Your images never leave your computer, ensuring 100% privacy and making it safe to encode sensitive or confidential diagrams and screenshots.
Yes. Because Base64 encoding uses 4 ASCII characters to represent 3 bytes of binary data, the resulting string will generally be about 33% larger than the original binary image file. For this reason, we recommend using this tool primarily for small icons, SVGs, or low-resolution placeholder images.