Tutorial
Step by step: Convert images to Base64
In this tutorial, you'll learn how to use the Base64 Converter to convert images directly in your browser – without uploading to a server.
Upload images
Drag and drop your images into the upload area or click to select files. You can also paste images directly from your clipboard with Ctrl+V. Supported formats: JPG, PNG, GIF, WebP, SVG, and BMP – up to 20 images, 1.5 MB each.
View results
After uploading, your images are automatically converted. The results table shows a preview, original file size, Base64 size, and the percentage size increase.
Copy code
For each image, various code formats are available: raw Base64 string, CSS background-image, HTML img tag, and Markdown. Simply click the corresponding button to copy the code to your clipboard.
Embed in your project
Paste the copied Base64 code into your HTML, CSS, or Markdown. Base64 images don't require separate files and load directly with your source code – ideal for icons, placeholders, and small graphics.
Tips & Best Practices
- • Use Base64 only for small images under 10 KB. Larger images should be included as separate files.
- • Base64 increases file size by approximately 33%. Use it strategically for critical resources that need to load immediately.
- • The reverse mode allows you to convert Base64 strings back into image files.
- • SVG files are particularly well suited for Base64, as they are often very small and compress well.