Base64 Image Converter
base64-image• Encode images to Base64 (Data URL) or decode Base64 back to an image. • Runs in your browser — images are never uploaded to a server.
Everything runs in your browser. Images are never uploaded to a server.
When to use an image as Base64
Turning an image into a Base64 string makes it text instead of a file, so you can place the image directly inside HTML, CSS or JSON. It is the value that starts with data:image/png;base64,…
Embedding a small icon or logo as a data URI removes one image request and speeds up loading. It also helps for email signatures, Markdown documents, and any time you need to share a result without hosting the image somewhere.
The trade-off is about 33% more size, and the browser cannot cache it separately — so it is a poor fit for large photos. Keep it to small images of a few tens of KB. Conversion happens only in your browser; the image is never uploaded.