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Image to Base64

Free Local Processing

Free online image to Base64 tool that encodes images into a Data URL (base64). Suitable for embedding in HTML/CSS, inline images, and data transfer. Files never uploaded, browser-side processing, privacy-safe.

Drag files here, or

Up to 20, max each 10.0 MB

How to Use

  1. 1 Click "Select Image" or drag images to the upload area
  2. 2 Click "Convert to Base64" button
  3. 3 View and copy the generated Data URL in the result area
  4. 4 For multiple images, the result lists each image Data URL grouped by file name

FAQ

Q: Are images uploaded to the server?

No. All processing happens in your browser. Images never leave your device.

Q: Will the size grow after Base64 encoding?

Yes. Base64-encoded size is typically about 33% larger than the original file. This is inherent to the encoding.

Q: What is the single-file size limit?

Up to 10MB per file to avoid lag from overly long Data URLs.

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