What is a Base64 data URI?

A data URI is a way to embed files directly in HTML/CSS using Base64 encoding. Format: data:image/png;base64,iVBORw0KGgo... This eliminates the need for separate image files.

When should I use Base64 images?

Use Base64 for small images (icons, logos under 10KB) to reduce HTTP requests. For larger images, regular files are better since Base64 increases size by 33% and can't be cached separately.

What image formats are supported?

Our converter supports all common formats: PNG, JPEG, GIF, WebP, SVG, BMP, and ICO. The output includes the correct MIME type in the data URI automatically.

Is my image uploaded to a server?

No! The conversion happens entirely in your browser using JavaScript. Your images never leave your device, making this tool safe for sensitive or private images.

Image to Base64 Converter

Convert any image to Base64 data URI format. Perfect for embedding images in HTML, CSS, and JSON without external files.

Select Image

Drop image here

or click to select

Supports PNG, JPG, GIF, WebP, SVG

Base64 Data URI

Supports PNG, JPG, GIF, WebP, SVG

Generates complete data URI

Preview image before converting

Copy data URI with one click

Related Base64 Tools

Base64 to Image

Convert Base64 strings back to viewable images. Decode data URIs and download as PNG, JPG, or other formats.

Base64 Decoder

Decode any Base64 string back to original text instantly. Perfect for debugging APIs and decoding encoded data.

URL-Safe Decoder

Decode URL-safe Base64 strings back to original text. Handles - and _ characters and missing padding automatically.

Base64 Encoder

Convert any text to Base64 encoding instantly. Perfect for encoding data for URLs, APIs, and data storage.

How to Use the Image to Base64

Our image to base64 makes Base64 encoding and decoding simple:

1.Drop your image onto the upload area or click to select
2.See the preview of your selected image
3.Copy the data URI to embed in HTML or CSS
4.Use in your code with <img src="data:...">

Common Use Cases

•Embedding images in HTML emails
•Inline images in CSS
•Storing images in JSON/databases
•Reducing HTTP requests

Why Use Our Image to Base64?

•100% Private: All processing happens in your browser
•No Registration: Use immediately without creating an account
•No Limits: Process as much data as you need
•Works Offline: Once loaded, works without internet
•Unicode Support: Full emoji and international character support

Technical Details

Base64 encoding uses a 64-character alphabet to represent binary data as ASCII text. Every 3 bytes of input become 4 characters of output (~33% size increase).

Our tool uses the browser's native btoa() and atob() functions for fast, reliable conversion. Unicode text is first converted to UTF-8.