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Image to Base64

Turn an image into a Base64 data URI ready to paste into CSS or HTML.

Image Tools Reviews Free · no sign-up

Drop an image here, or click to choose one

PNG · JPEG · WebP · SVG · GIF — encoded in your browser

Quick Tool Overview

Image to Base64 turns an image into a data URI you can paste straight into HTML or CSS, removing one network request. It outputs the encoded string in three ready-to-use forms: raw Base64, a complete img tag and a CSS background-image rule.

What it does
Encodes an image file as a Base64 data URI
You give it
An image from your device
You get back
Raw Base64, an HTML img tag and a CSS rule
Best for
Icons, spinners, email signatures and small inline assets
Image Tools Free, unlimited use No sign-up Runs in your browser

About the Image to Base64

A data URI embeds an image directly inside your HTML or CSS instead of pointing at a separate file. That removes one network request, which is worth doing for small assets such as icons, spinners and email signatures.

Drop in an image and the tool produces the encoded string in three ready-to-use forms: the raw Base64, a complete HTML img tag, and a CSS background-image rule. Bear in mind that Base64 inflates the data by roughly 33 percent, so this is a technique for small files. Anything over a few kilobytes is better served as a normal cached image file.

Key features of the Image to Base64

Three output formats

Raw Base64, a complete HTML img tag and a CSS background-image declaration, each ready to paste.

One fewer network request

Embedding a small asset inline removes a round trip, which is worth doing for icons and spinners.

Honest about the trade-off

Base64 inflates data by roughly 33 percent, so the tool is clear that anything over a few kilobytes is better served as a cached file.

Any supported image type

PNG, JPEG, WebP, GIF and SVG all encode, with the correct MIME type written into the data URI.

Nothing is uploaded

The file is read and encoded locally by your browser.

How to use the Image to Base64

  1. 1

    Add an image

    Drop in or select any image file, including SVG.

  2. 2

    Pick an output format

    Switch between the raw Base64 string, an HTML img tag and a CSS background rule.

  3. 3

    Copy it

    Copy the generated code straight into your stylesheet or markup.

Frequently asked questions

For small, always-needed assets such as icons and logos under about 5 KB, where saving a request outweighs the size penalty. For photographs and large graphics, a normal image file is faster because it can be cached separately.

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