DEVELOPER TOOL
Image to Base64 Converter
Convert an image file into a Base64 data URI for embedding in code.
About this tool
Convert an image file into a Base64-encoded data URI you can paste directly into HTML, CSS, or JSON — useful for embedding small icons or images without a separate file request. The image is read and encoded entirely in your browser; it's never uploaded anywhere.
Frequently asked questions
- When should I embed an image instead of linking to a file?
- For very small images (icons, tiny logos) where saving an extra network request is worth a larger inline HTML/CSS file. For photos or larger images, a normal linked file is almost always better — Base64 encoding makes the data about 33% larger than the original file.
- Is my image uploaded to a server?
- No — the file is read locally using your browser's File API and encoded entirely on your device.
- What image formats are supported?
- Any image format your browser can read and display, including PNG, JPEG, GIF, WebP, and SVG.