Free Image to Base64 Encoder
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About the Image to Base64
Convert an image to a Base64 data URI you can paste straight into HTML, CSS or code — encoded in your browser with no upload.
How to use the Image to Base64
- 1Drop in an image, or click to browse — it's encoded on your device.
- 2Choose how you want it wrapped: a plain data URI, CSS, HTML or Markdown.
- 3Copy the result with one click.
- 4Paste it straight into your code — no separate image file needed.
Frequently asked questions
Is this Base64 encoder free?
Yes — completely free with no sign-up and no watermark.
Are my images uploaded anywhere?
No. Encoding happens entirely in your browser — your image never leaves your device.
What is a Base64 data URI?
It's a text representation of your image that starts with data:image/... You can embed it directly in HTML or CSS so the image loads without a separate file request.
When should I inline an image as Base64?
It's handy for small images like icons and logos, to cut down HTTP requests or bundle an image into a single file. Avoid it for large images — Base64 is about 33% bigger than the original file.
Which formats are supported?
Any image your browser can read, including JPG, PNG, WebP, GIF and SVG. The data URI keeps the original format.