Image to Base64 Converter
Convert images to Base64 Data URLs for embedding in HTML, CSS, and JavaScript. Instant conversion, no upload. For developers.
Want to go deeper? This guide explains it step by step.
The Best Image Format for Your WebsiteDrop image to convert to Base64
JPG, PNG, WebP, SVG, GIF supported - or click to browse
→ Reverse: Base64 to Image
Paste a Base64 string or Data URL below to preview and download as an image.
What Is Base64 and When Do You Need It
Base64 is an encoding method that converts binary data like images into a text string that can be embedded directly into HTML, CSS, or JSON without a separate file reference. Converting an image to Base64 is useful for embedding small images directly into HTML email templates (avoiding blocked external image requests), inlining small icons or logos in CSS to reduce HTTP requests, passing image data through APIs that accept JSON but not binary files, and embedding images in single-file HTML documents. Base64 strings are roughly 33 percent larger than the original binary file, so this technique is best suited to small images rather than large photos. The conversion happens entirely in your browser and no image data is sent to any server.