Image to Base64 Converter
Convert images to Base64 encoded strings online. Upload PNG, JPG, GIF, or WebP images and get Base64 output for embedding in HTML, CSS, or APIs.
Input
Click to upload or drag and drop
Images, PDFs, text files, JSON, etc.
About This Tool
Mode: encode
URL-Safe: No
Base64 encoding converts binary data to ASCII text, making it safe for text-based systems like JSON, XML, and URLs.
Base64 Output
Enter text to see the Base64 encoded result here.
Frequently Asked Questions
What image formats are supported?
We support all major image formats including PNG, JPEG, GIF, WebP, SVG, and BMP. The original format is preserved in the Base64 output.
How do I use Base64 images in HTML?
Use the Base64 string in an img tag like: <img src="data:image/png;base64,YOUR_BASE64_HERE">. You can also use our 'Copy as Data URI' button.
Is there a file size limit?
There's no hard limit, but larger images (over 1MB) may slow down your browser. For production use, consider keeping Base64 images under 10KB.
Should I use Base64 images in production?
Base64 images are best for small icons and graphics. For larger images, external files with caching are more efficient as Base64 increases file size by ~33%.
Practical Examples
Inline Email Images
Embed images directly in HTML emails without external hosting.
CSS Background Images
Use data URIs for small background images to reduce HTTP requests.
API Image Upload
Send images as Base64 strings in JSON payloads to REST APIs.
Common Issues & Solutions
If upload fails, check that the file is a valid image format.
Large images may cause browser slowdown - consider resizing first.
The output includes the raw Base64 only. Use 'Copy as Data URI' for embedding.
For SVG files, you can often use the raw SVG code instead of Base64.