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Image to Base64

Encode an image as a data URI for CSS, HTML or JSON.

Image Tools

About Image to Base64

Image to Base64 is a free online image tool from Toolbench. Encode an image as a data URI for CSS, HTML or JSON. Drop, paste or pick an image, adjust the settings and download the result.

In-depth guideHow to Convert an Image to Base64 (Data URI for CSS, HTML or JSON) →

Category
Image Tools
Price
Free
Account
Not required
Runs
Entirely in your browser

How to use Image to Base64

  1. Drop an image onto the tool, paste one from your clipboard, or click to choose a file.
  2. Adjust the settings (encode as, quality) and watch the live preview.
  3. Download the result, or sign in to save it to your Gallery.

Options

Encode asSame as original · PNG · JPG · WebP
Quality0.1–1 (default 0.9)

Privacy

Images are decoded and processed on your device with the browser’s Canvas API — they are not uploaded to be processed. If you are signed in and choose to save a result to your Gallery, that image is stored privately in your account (Cloudflare R2) and only you can open it.

Frequently asked questions

Is Image to Base64 free?

Yes. Image to Base64 is completely free with no sign-up, no usage limits and no watermarks.

Are my images uploaded to a server?

No. Images are processed on your device by your browser and are never uploaded.

Which image formats are supported?

You can open any image your browser can display — PNG, JPG, WebP, GIF, AVIF, SVG and more. Results are exported as PNG, JPG or WebP.

Does it work on my phone?

Yes. Toolbench runs in any modern browser on desktop, tablet or phone — there is nothing to install.

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