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Image to Base64 Converter
Convert images (PNG, JPG, SVG, WebP) to Base64 strings instantly. Optimize your web performance by embedding Base64 image data URIs directly into your HTML or CSS. Free and secure.
How It Works
When you upload an image, our tool reads the file locally in your browser using the FileReader API. It then converts the binary image data into a Base64 encoded Data URI string, ready to be copied and pasted into your code.
Common Use Cases
- Embedding small icons or logos directly into CSS files to reduce HTTP requests
- Including images inside single-file HTML documents or email templates
- Converting images to Base64 strings to store them in JSON payloads or databases
- Bypassing CORS issues by loading images as inline data URIs
Frequently Asked Questions
No. Base64 encoding increases the file size by about 33%. It is best used for very small images (like icons or logos) where the cost of an extra HTTP request outweighs the increased file size. Large images should remain as standard files.
Our converter supports all standard web image formats, including PNG, JPEG, GIF, SVG, WebP, and BMP.
No, your privacy is guaranteed. The image to Base64 conversion happens entirely within your web browser. Your images are never uploaded, stored, or seen by our servers.
You can convert PNG, JPEG, GIF, WebP, SVG, BMP, ICO, and TIFF images to Base64 strings. The tool handles all common web image formats.
Base64 is good for small images (icons, logos under 10KB) to reduce HTTP requests. For larger images, regular file URLs are more efficient due to browser caching.
Use the data URI in an img tag: <img src="data:image/png;base64,YOUR_STRING_HERE" />. For CSS, use it in background-image: url(data:image/png;base64,...).
Yes, the tool supports both directions. Paste a Base64 string and download the decoded image file in its original format.
No, Base64 encoding preserves the exact binary data. The image quality remains identical — only the representation changes from binary to text.