Free Image to Base64 Converter
Upload any image to get its Base64 string and data URI. Preview, copy and use instantly. Zero server calls.
Choose Image or Drop Here
How It Works
Upload an image or drag-and-drop it onto the page. The tool converts it to a Base64-encoded string that you can embed directly in HTML, CSS, or JSON. Copy the data URI or raw Base64 with one click.
When to Use It
- Inline images in HTML emails — embed small images directly in the email body without external hosting.
- CSS background images — use Base64 data URIs for small icons and patterns to reduce HTTP requests.
- API payloads — encode images as Base64 strings for inclusion in JSON API requests.
Frequently Asked Questions
Does Base64 increase file size?
Yes. Base64 encoding increases the data size by approximately 33%. Use it only for small images (under 10KB) where reducing HTTP requests matters more than file size.
Which image formats are supported?
Any browser-supported format works: PNG, JPEG, GIF, WebP, SVG, and ICO. The output includes the correct MIME type in the data URI.
Can I decode Base64 back to an image?
Yes. Paste a Base64 data URI into a browser address bar to view the image, or use a dedicated Base64 decoder tool.
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