Image to Base64 Converter
Encodes an image to a Base64 data URI for embedding directly in HTML or CSS without an external file.

What Image to Base64 Converter does
Image to Base64 Converter is a free online tool for converting images to base64 strings. You can select different formats as output such as raw base64, data URI, HTML Image, CSS Background Image, Hyperlink, Downloadable Hyperlink, and HTML Favicon. Base64 is one of the most popular formats for storing any type of data as string such as images, videos or even texts. It makes it easier to store or transfer data between different applications as strings, so you don't need to worry about the format of the data. Base64 strings consist of 64 different characters which are uppercase Latin letters (26), lowercase Latin letters (26), numbers (10) and "+" and "/" symbols (2). The name of the algorithm comes from these 64 characters. Also, "=" may be used as padding. For encoding any type of images (JPG, PNG, SVG or GIF) as base64 strings, you can use the tool. Here, you can see how a 1px-to-1px black rectangle image in JPG format is converted to base64. When you use this algorithm on browser, you generally need to use it as data URI where you need to define the MIME type just before the base64 string. The tool processes uploaded images into a single plain text string formatted as a data URI, allowing web developers to embed the image directly into code like HTML or CSS without needing to reference an external file path.
How to use the 10015 Tools Image to Base64 Converter
- 1
Drag your image here, or click to browse to upload the file
- 2
Wait for the tool to process the image and show the preview
- 3
Select your preferred output format from the available options
- 4
Copy the generated Base64 string or data URI from the result area
Best for
Developers and designers who need to embed images directly into HTML or CSS without managing external file paths.
Limitations
- File size limits may apply for very large images
- Output is a text string, not a viewable image preview within the tool
- Conversion results depend on the original image format and compression
Image to Base64 Converter FAQ
- Can I convert any image format to Base64 using this tool?
- The tool supports common image formats including JPG, PNG, SVG, and GIF for conversion to Base64 strings.
- What is the difference between raw Base64 and data URI output?
- Raw Base64 provides just the encoded string, while data URI output includes the MIME type prefix (e.g., data:image/png;) allowing direct embedding in HTML or CSS code.
- Is there a file size limit for images converted with this tool?
- The material does not specify file size limits, but very large images may have practical processing constraints typical of online conversion tools.
- Can the converted Base64 string be used in CSS background-image properties?
- Yes, the tool offers CSS Background Image as an output format, which generates Base64 strings suitable for use in CSS background-image declarations.
More Image to Base64 tools
Similar tools
Based on shared tags