Image to Base64

Encode an image file into a Base64 text string for embedding in code.

FREE - NO SIGN-UP - RUNS ON YOUR DEVICE

Your files stay on your device

  • Data URIoutput
  • HTML/CSSembedding
  • Copyto clipboard
  • Privateencoding
Specification

Image to Base64 at a glance

Input formats
JPG, PNG, WEBP, GIF, SVG
Output formats
Base64 text string (Data URI)
Maximum file size
Device memory
Batch
Single file only
Quality control
Direct binary-to-text
Metadata handling
Raw file data is encoded
Price
Free
Account required
No
How to

How to use Image to Base64

  1. 1

    Add Your Image

    Add your image file.

  2. 2

    Copy the String

    Copy the Base64 string.

  3. 3

    Paste into Your Code

    Paste it into your code.

Questions

Frequently asked questions

When should I use Base64 encoding for images?

It is best for very small images like icons. Embedding large images as Base64 can make your HTML or CSS files very large and slow to load.

Does this change the image quality?

No. Base64 is just a different way of representing the exact same image data. The image will look identical when decoded by the browser.

Can I convert a Base64 string back to an image?

This tool only performs the encoding from image to Base64 string. It does not include a decoder to convert the text back into a file.

Background

Using Base64 in Web Development

This tool creates a Data URI from an image, containing its MIME type and Base64 payload. This is useful for embedding images directly into HTML, CSS, or JSON.

  • Embedding images as Base64 Data URIs can reduce HTTP requests, improving page performance. This is effective for small icons or background images.
  • The trade-off: Base64 strings are about 33% larger than the binary file and cannot be cached separately from the HTML or CSS.

Full specification

Specification of the Image to Base64 tool
Input formatsJPG, PNG, WEBP, GIF, SVG
Output formatsBase64 encoded text string (Data URI)
Maximum file sizeLimited only by your device memory
BatchNo, one file is encoded per run
Quality controlDirect binary-to-text representation
Metadata handlingRaw file data is encoded
PriceFree
Account requiredNo
Next step

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