Image to Base64 Converter
Convert images to Base64 strings with file upload or URL—perfect for embedding in HTML, CSS, or databases.
Supports: JPG, PNG, GIF, WebP, SVG, BMP
Upload an image or enter a URL to convert to Base64
Our Image to Base64 Converter transforms image files (JPG, PNG, GIF, WebP, SVG, BMP) into data URI strings for inline embedding in HTML, CSS, or databases. Features file upload (up to 5MB), URL conversion with CORS handling, live preview with format/size badges, and copy/download—ideal for web developers eliminating HTTP requests, email designers needing inline images, or API developers simplifying binary data transfer.
Frequently Asked Questions
What is Base64 encoding for images?
Base64 encoding converts binary image data into ASCII text strings using 64 characters (A-Z, a-z, 0-9, +, /). The result is a data URI (data:image/png;base64,...) that can be embedded directly in HTML, CSS, or JSON without external file references—useful for inline images, email templates, or database storage.
Why convert images to Base64?
Base64 images eliminate HTTP requests (faster page loads for small images), work in environments without file systems (emails, PDFs), enable inline CSS backgrounds, simplify data transfer in APIs, and allow storing images in databases as text. Trade-off: ~33% size increase vs. binary files.
What image formats are supported?
All common formats: JPG/JPEG, PNG, GIF, WebP, SVG, BMP, ICO. Maximum 5MB per file for browser performance. The Base64 output includes the MIME type (e.g., data:image/png;base64,...) for proper rendering when decoded.
Can I convert images from URLs?
Yes! Enter any publicly accessible image URL and click Convert. The tool fetches the image, converts it to Base64, and displays the result. Note: CORS restrictions may block some URLs; use file upload for local images or restricted sources.
How do I use the Base64 string in my code?
In HTML: <img src="data:image/png;base64,..." />. In CSS: background-image: url(data:image/png;base64,...). In JavaScript: assign to img.src. For databases, store the full string and retrieve as-is. The data URI is self-contained and works anywhere.
Does Base64 increase file size?
Yes, by ~33% due to encoding overhead. A 100KB image becomes ~133KB Base64. Use for small images (<50KB) where convenience outweighs size. For large images, prefer standard file hosting with CDN for better performance and caching.