Image to Base64
Convert an image to a Base64 data URL.
About Image to Base64
Convert an image into a Base64 data URI you can embed directly in HTML or CSS. Encoding an image as Base64 lets you inline it into a stylesheet, an email template, or a JSON payload without hosting a separate file, which can reduce HTTP requests for small icons and graphics. Drop in a PNG, JPG, or SVG and copy the resulting data URI ready to paste into your code. Because the encoding happens locally in your browser, your image is never uploaded to any server. The tool is free with no signup, and it is a favorite of developers building self-contained components and templates.
How to use this tool
- 1Upload an image.
- 2The Base64 data URL is generated instantly.
- 3Copy it and embed it in your HTML, CSS, or code.
Frequently asked questions
When should I use Base64 images?
For small icons or images embedded directly in CSS/HTML to avoid extra requests. Large images are better served as files.
Why is the Base64 string bigger than my file?
Base64 encoding adds roughly 33% overhead compared to the binary file size.
Related guide
5 min readBase64 Explained: What It Is, What It Isn't, and When to Use It
Why Base64 exists, how the encoding actually works, why it isn't encryption, and the real-world cases where you'd use it - or shouldn't.