图像转Base64

Base64 is a way to encode binary data (like images) as ASCII text. This allows images to be embedded directly in code, emails, or documents without separate files.

Base64 is pure encoded data. A Data URL includes the MIME type prefix (data:image/png;base64,...) making it ready to use directly in HTML and CSS.

Use Base64 for: small images (icons, logos), reducing HTTP requests, embedding in emails, storing images in databases, or including images in JSON data.

Yes, Base64 encoding increases data size by approximately 33%. A 100KB image becomes ~133KB of text. Use it for small images to minimize overhead.

Copy the HTML Embed output and paste it directly into your HTML file. The browser will render the image from the embedded data without needing a separate file.

This tool supports JPEG, PNG, WebP, and GIF formats. The original format is preserved in the Data URL prefix.

Yes! Use the Data URL format in CSS: background-image: url(data:image/png;base64,...). This is common for small decorative images and icons.

While there's no strict limit, very large Base64 strings can slow down page loading. Keep images under 10KB for optimal performance. Use our Image Compressor for larger files.

The maximum file size is 20MB. For larger files, compress them first using our Image Compressor tool.

No, your images are processed in real-time and never permanently stored. They're automatically deleted after processing.