Image to Base64
Convert images to Base64 data URIs for embedding directly in HTML or CSS. Processed entirely in your browser — images are never uploaded.
Drop an image here, or click to browse
PNG, JPEG, GIF, WebP, SVG — max 5 MB
More Tools
About Base64 encoding
Base64 is an encoding scheme that converts binary data to ASCII text using 64 printable characters. It is commonly used to embed binary files (images, fonts) in text-based formats like HTML, CSS, JSON, and XML. The encoded output is approximately 33% larger than the original binary data.
Frequently Asked Questions
Why convert an image to Base64?
Base64 encoding lets you embed images directly into HTML, CSS, or JavaScript without making a separate HTTP request. This is useful for small icons, logos, or data URIs in CSS, especially if you want to reduce the number of network requests in a web page.
Does embedding Base64 images improve page speed?
It depends. For very small images (under ~10 KB), embedding as Base64 can reduce latency by eliminating an HTTP request. For larger images, the overhead of Base64 encoding (which increases file size by ~33%) and the inability to cache the image independently make it less efficient than using a separate image URL.
Is my image uploaded to a server?
No. All conversion happens entirely in your browser using the FileReader API. Your image data never leaves your device.