Image to Base64

Convert images to Base64 online

Select any image and it’s instantly converted to a Base64 data URL using the browser’s FileReader API — no upload, no server, no signup. Copy the raw data URL to embed it in HTML tags, or use the CSS snippet to set it as a background image. The byte length is shown so you know exactly how much it adds to your page weight.

Base64 encoding increases file size by about 33%, so it’s best used for small icons, logos, or images you want to inline to avoid extra HTTP requests.

FAQ

Is my image sent anywhere? No — the conversion uses FileReader.readAsDataURL(), which runs entirely in your browser. Your image never leaves your device.