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Utilnivo

Image

Image to Base64 Converter

  • Browser-based
  • Basic conversion
  • No signup
  • Stays on your device
  • Your file is processed in your browser and is not uploaded to our servers.

Upload a JPG, PNG, WebP, GIF, or SVG and convert it to Base64 and a data URL in your browser. Copy either output for use in CSS, HTML, or APIs. Files are not uploaded to a server.

100% Client-Side

Your data never leaves your computer.

How to use this tool

1. Choose an image or drag it onto the upload area. 2. Review the generated Base64 string or data URL in the output panel. 3. Choose whether to include the data URL prefix if that option is shown. 4. Click Copy to clipboard. 5. Paste into HTML, CSS, or API payloads as needed. Processing runs in your browser.

Worked example

Example: upload a small PNG icon and copy the data:image/png;base64,... string for an inline email or test fixture.

How it works

Upload an image and the tool converts its bytes to Base64 and a data URL in your browser. Supported formats are JPG, PNG, WebP, GIF, and SVG. Files are not uploaded to a server.

Limitations

Results are based on the inputs you provide and may not cover every edge case. This tool is for general use and is not professional advice.

Privacy and file handling

Your data is processed in your browser and is not uploaded to our server.

Frequently asked questions

Which image formats are supported?

JPG, PNG, WebP, GIF, and SVG. The tool encodes the file bytes in your browser.

What is the difference between Base64 and a data URL?

Base64 is the encoded payload only. A data URL includes the MIME type prefix, such as data:image/png;base64,…

Is my image uploaded?

No. Encoding runs locally in your browser.

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