Convert Image to Base64
Convert images to Base64 encoding for HTML, CSS and data URIs. Free online image to Base64 converter for embedding images in code.
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Guide
How to use Convert Image to Base64
The Convert Image to Base64 tool turns an image into a Base64 string you can paste straight into HTML or CSS. Upload an image, convert it, and copy the resulting code. It is perfect for embedding images without separate file requests.
How to use this tool
- Upload your image.
- Click convert to generate the Base64 string.
- Copy the Base64 code.
- Use it in your HTML or CSS.
When to use this tool
- Embedding small icons directly in stylesheets.
- Inlining images in HTML emails or single-file pages.
- Reducing HTTP requests on lightweight pages.
- Passing image data to APIs that accept Base64.
Practical examples
Converting a small logo PNG returns a string that starts with data:image/png;base64, and pasting it into an img src attribute shows the logo without a separate file. This works well for icons under a few kilobytes.
Tips for accurate results
- Base64 increases size by about a third, so use it for small images only.
- Include the correct data URI prefix for your image format.
- Avoid inlining large images as it bloats the HTML file.
Frequently asked questions
What image formats can I convert?
The tool supports common formats including PNG, JPG and GIF.
Does Base64 reduce image quality?
No, Base64 is an encoding, not compression, so image quality stays the same.
Why use Base64 for images?
It lets you embed images directly in code, reducing separate file requests for small assets.