Convert Image to Base64
Base64-encoded images can be embedded directly into HTML, CSS, or JSON without needing a separate file request. This is useful for small icons, email templates, and single-file HTML documents where reducing HTTP requests matters.
Open Image to Base64 Encoder →How to Convert Image to Base64
- Open the Image to Base64 Encoder on ToolPrime
- Click the upload area or drag an image onto the page
- The tool generates a complete data URI with the correct MIME type
- Copy the data URI to use in an img src attribute or CSS background
- Or copy the raw Base64 string for API payloads and database storage
Common Use Cases
- Embed small icons in HTML email templates
- Include logos in CSS without extra HTTP requests
- Store thumbnail images as strings in a JSON config
- Create self-contained HTML files with inline images
Frequently Asked Questions
How much larger is a Base64-encoded image?▾
Base64 encoding increases file size by approximately 33%. It is best suited for images under 10 KB.
Which image formats are supported?▾
The tool supports PNG, JPEG, GIF, SVG, WebP, and ICO formats. The correct MIME type is automatically detected.
Can I use Base64 images in CSS?▾
Yes, use the data URI as a background-image value: background-image: url(data:image/png;base64,...).