What is an image to Base64 converter?
An image to Base64 converter turns an image file into text that can be placed inside a data URL. Base64 text represents the image bytes using ordinary characters, so it can be embedded in HTML, CSS, JSON and other text-based formats. This tool creates both the complete data URL and the raw Base64 value directly in your browser.
Choose an image and the converter reads it from your device. You can copy the full data URL when you need something ready for an image source, or copy only the Base64 section when a form or API expects the raw encoded value. The file is never uploaded to a server.
How to encode an image
- Upload an image from your device.
- Copy the Data URL for direct use in an img source or CSS value.
- Copy Base64 only when the destination asks for the encoded payload without a prefix.
- Keep the original image file; Base64 is useful for embedding, not a replacement for organized assets.
A data URL starts with metadata such as data:image/png;base64, followed by the encoded characters. The prefix tells software what image type it is reading. Raw Base64 omits that prefix, so it is shorter but needs the file type to be known separately.
When should you use Base64?
Base64 can simplify small, self-contained assets such as tiny icons in an email template or a development example that should not depend on a separate file path. It can also help when an API accepts image text in a JSON request. However, Base64 text is larger than the underlying binary file, so it is usually not a good way to embed large photos in a production webpage.
Private browser encoding
Encoding runs through the browser FileReader API. Your image remains on your computer or phone and the generated text is shown only in this page. Be careful when sharing a Base64 string: it includes the complete image content and can be very long. For public websites, prefer normal optimized image files unless embedding a small asset has a clear advantage.