About

Image to Base64

Convert images to Base64 encoded strings

Drag and drop an image here, or click to browse

Supports PNG, JPG, GIF, SVG, WebP

Upload an image to convert to Base64

About This Tool

Image to Base64 is a free online tool that converts your images into Base64 encoded strings. Base64 encoding is commonly used to embed images directly in HTML, CSS, or JSON files, eliminating the need for separate image files and additional HTTP requests. This technique is particularly useful for small icons, logos, and UI elements where reducing HTTP requests can noticeably improve page load performance. Base64 encoded images are also widely used in API development for transmitting image data within JSON payloads, in email templates where external image references may be blocked, and in single-file HTML exports for offline use. The tool supports all major image formats including PNG, JPG, GIF, SVG, and WebP. All conversion happens in your browser — your images are never uploaded to any server.

How to Use

  1. Click the 'Choose File' button or drag and drop an image into the upload area.
  2. Select an image file (PNG, JPG, GIF, SVG, or WebP).
  3. The Base64 string will be generated automatically.
  4. Copy the Base64 string or the full data URI for use in your code.
  5. Use 'Clear' to reset and convert another image.

Frequently Asked Questions

Base64 is a binary-to-text encoding scheme that represents binary data using a set of 64 ASCII characters. It converts binary files like images into plain text strings, making them easy to embed directly in HTML, CSS, JSON, or XML documents without needing separate file references.
No. Base64 encoding increases file size by about 33%, which can negatively impact performance for large files. It's best suited for small images under 10KB, such as icons, logos, and UI elements. For larger images like photos and banners, use regular image files with proper caching.
Yes. All processing happens entirely in your browser using client-side JavaScript. Your images are never uploaded to any server, stored anywhere, or transmitted over the network. Once you close the page, the data is completely gone.
The tool supports all major image formats including PNG, JPG/JPEG, GIF, SVG, WebP, BMP, and ICO. Simply upload or drag and drop any image file, and the tool will automatically detect the format and generate the correct Base64 encoded string.
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