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Image to Base64 Converter

Convert local images to Base64 Data URI, CSS url() or raw Base64 text directly in your browser.

Drop an image here

Ready.

Local only Small images work best. Up to 5 MB.
Drop an image here Use JPG, PNG, WebP, GIF or SVG files. FileReader runs in this browser tab.

Output settings

Choose the text format to generate.

Notes
  • Base64 usually increases file size by about one third.
  • Use Data URI for HTML and CSS url() for stylesheets.
  • Avoid embedding large images in production pages.

Base64 output

The Base64 output will appear here.

Ready.

What is this image to Base64 converter?

This tool reads a local image and converts it to a Base64 Data URI, CSS url() value or raw Base64 string. It is useful for small icons, email templates and quick developer tests.

Privacy

Images stay in your browser. The tool does not upload files or store them on the server.

Features

  • Convert images to Data URI, CSS url() or raw Base64
  • Preview the selected image before copying
  • Copy output with one click
  • Download the generated text as a .txt file
  • Local FileReader processing with no upload

How to use

  1. Add an image

    Choose or drag an image file into the tool.

  2. Select output mode

    Pick Data URI, CSS url() or raw Base64.

  3. Generate text

    The browser reads the file and builds the selected text format.

  4. Copy or download

    Copy the output or download it as a text file.

FAQ

Are images uploaded?

No. FileReader reads the image inside your browser.

Why is Base64 larger than the image file?

Base64 encoding usually increases size by roughly one third.

Should I use Base64 for large images?

Usually no. Base64 is best for small icons and embedded assets.

Can I convert SVG?

Yes, SVG files can be read and encoded as Data URI or raw Base64.

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