Image to Base64 Converter
Convert images to Base64 online for free. Encode JPG, PNG, WebP, GIF, SVG and other supported image files into Base64 Data URI code instantly.
Convert Image to Base64 Online
FreeToolsX Image to Base64 Converter allows you to encode images into Base64 strings directly in your browser. The generated Base64 code can be used in HTML, CSS, JavaScript, emails and other web projects.
What Is Base64?
Base64 is an encoding method that represents binary data as text. An image encoded in Base64 can be embedded directly into a web page instead of being referenced as a separate image file.
What Is a Data URI?
A Data URI combines the image MIME type with its Base64 encoded data. For example, a PNG image can be represented using a format similar to:
How to Convert Image to Base64
Upload your image using the tool above. The converter reads the image locally and generates the Base64 Data URI. You can then copy the code or download it as a text file.
Supported Image Formats
The converter supports common browser-readable image formats including JPG, JPEG, PNG, WebP, GIF, SVG, BMP and other formats supported by your browser.
Using Base64 Images in HTML
A Base64 Data URI can be placed directly inside the
src attribute of an HTML image.
Using Base64 Images in CSS
Base64 images can also be used as CSS background images.
Is Image to Base64 Conversion Private?
Yes. The conversion is performed directly inside your browser using JavaScript. Your images do not need to be uploaded to an external server.
Important: Base64 Can Increase File Size
Base64 representation is usually larger than the original binary image file. It is therefore most useful for small images, icons, inline assets and situations where embedding the image directly into HTML or CSS is useful.
Frequently Asked Questions
Is Image to Base64 free?
Yes. You can convert images to Base64 for free.
Can I convert multiple images?
Yes. Multiple images can be selected and converted at the same time.
Does the converter upload my images?
No. Image conversion takes place directly in your browser.
Can I use Base64 in HTML?
Yes. Base64 Data URIs can be used in the HTML
img element.
Can I use Base64 in CSS?
Yes. Base64 Data URIs can be used with CSS background-image and other compatible properties.
Does Base64 improve website performance?
Not always. Base64 increases the encoded data size, so it is generally more suitable for small images rather than large photographs.
Can I download the Base64 code?
Yes. Each generated Base64 result can be downloaded as a text file.
Does it work on mobile?
Yes. The tool is responsive and works on smartphones, tablets and desktop computers.