URL to Base64 Converter
Enter a URL to fetch its content and encode it to Base64. Works best with CORS-enabled URLs. For local files, use File to Base64 instead.
What does URL to Base64 do?
Fetches content from a URL and encodes it to Base64. Enter a URL—the tool fetches the resource (image, file, etc.) and converts it to a Base64 string. Useful when the file is online and you need Base64 without downloading first.
What is it used for?
- Remote images: Convert image URLs to Base64 for embedding
- APIs: Get Base64 from a URL without manual download
- Data URIs: Create
data:image/png;base64,...from image URLs - Quick conversion: When you have a URL but need Base64
CORS limitation
Browsers enforce CORS. Many external URLs block cross-origin requests. Use URLs that allow CORS (e.g. same-origin, or servers with Access-Control-Allow-Origin). For local files, use File to Base64 instead.
Related Tools
Text to Base64
Encode plain text to Base64 format quickly and securely. Free online Base64 encoder for developers and data processing. Supports UTF-8 and other encodings.
Image to Base64
Convert images (PNG, JPG, GIF, SVG, WEBP) to Base64 strings online for free. Embed images directly in HTML/CSS or transmit them easily. Secure client-side conversion.
File to Base64
Convert any file to Base64. All file types supported. Client-side.