Image to Base64 Converter
Upload an image and get its Base64 encoded string or a ready-to-use data URI — image never leaves your browser.
What Is Image to Base64 Conversion?
Base64 encoding converts binary image data into a string of printable ASCII characters. This lets you embed images directly into HTML, CSS, and JavaScript files as data URIs, without needing a separate image file or HTTP request. Data URIs are useful for small icons, backgrounds, and images you want to bundle inline with your code.
When to Use Base64 Images
Base64 images reduce HTTP requests (useful for small icons), allow images to work in offline web apps, enable images in email templates that don't support external URLs, and let you embed images in single-file HTML documents. The trade-off is file size — Base64 encoding increases image size by ~33%, so it's best for images under 5KB.
Your Image Stays Private
This converter runs entirely in your browser using the FileReader API. Your image is never uploaded to any server — the conversion happens locally on your device.