Image to Base64
Convert an image into a Base64 string, data URL, CSS snippet, or HTML tag.
Useful for inline icons, email templates, and small assets you need to embed directly.
Encode images for inline use without leaving the browser
This image to Base64 converter is meant for the common inline-asset workflow: take a small image, turn it into an embeddable string, and paste it into CSS, HTML, JavaScript, or email markup without sending the file to a server.
Because everything runs locally in your browser, it works well for private assets, quick experiments, and batch conversions where you want a fast output format switch instead of a full image-processing pipeline.
Inline a small icon or logo
Generate a Base64 data URI for tiny assets you want to embed directly in CSS, HTML, or an email template.
Prepare assets for email HTML
Switch between data URL, raw Base64, CSS, and HTML output depending on where the encoded image will be pasted.
Convert multiple images in one pass
Drop in several files, copy them individually, or download everything as a ZIP when you need batch output quickly.
When to Use Base64 Images
Good For
- Small icons and sprites (under 10KB)
- Email HTML templates
- Reducing HTTP requests
- Embedding in CSS/JS files
Avoid For
- Large images (increases file size by ~33%)
- Images that change frequently
- SEO-critical images
- When browser caching is important
Image to Base64 FAQ
When should I use Base64 images?
Base64 works best for small assets such as icons, logos, or email-safe inline images. It is usually a poor fit for large images because encoded files grow in size and cannot be cached as efficiently.
Which output format should I choose?
Choose Data URL for general use, CSS when you need `background-image`, HTML when you want a ready-made `<img>` tag, and Raw Base64 when another tool expects only the encoded string.
Explore More Image Tools
Image Compressor
Reduce file size while maintaining quality
Emoji Favicon
Create favicons from emojis
Icon Favicon
Create favicons from Lucide icons
Screenshot Mockup
Add device frames to screenshots
Image Resizer
Resize images to exact dimensions
Base64 to Image
Convert Base64 back to images
Format Converter
Convert between PNG, JPEG, WebP
Screenshot Annotation
Add arrows, shapes, and text to images