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Drop image here or click to upload
JPG, PNG, WebP supported — processed entirely in your browser
What is Base64 Image Encoding?
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Base64 converts binary image data to ASCII text that can be embedded in HTML, CSS, or JSON without separate file requests. Use for small images under 10KB; larger images are better served as separate files.
Use the Image to Base64 Converter above — enter your values and get instant results. This free online tool calculates how to convert image to base64 without any download or signup required. Results update in real time as you type.
Use the Image to Base64 Converter above — enter your values and get instant results. This free online tool calculates base64 image encoder free without any download or signup required. Results update in real time as you type.
Use Base64 for small images under 5-10KB: icons, loading spinners, simple logos. Benefits: no HTTP request, cannot be hotlinked. Drawbacks: 33% larger file size, not cached separately. For images above 10KB, separate file serving is almost always better for web performance.
data:[type];base64,[data]. Example: data:image/png;base64,iVBORw0... Use this URI anywhere a URL is accepted: HTML img src, CSS background-image, JavaScript image src assignment.
No — all processing happens in your browser using Canvas API. Your image never leaves your device.
JPG, PNG, WebP, GIF (first frame), AVIF (in supporting browsers), and BMP. The upload accepts any format your browser can decode.
This tool processes one image at a time. For batch processing, use ImageMagick command-line or Python Pillow library.