Base64 Image Converter
Bidirectional conversion between Base64 strings and images. Preview, download, and drag-and-drop support.
Base64 Image Converter
What is Base64 Image Converter?
Base64 Image Converter is an online tool that supports bidirectional conversion between Base64 strings and image files. You can restore images from Base64 encoded strings or convert image files into Base64 strings.
This tool is useful in various situations where Base64 images are needed, such as web development, email templates, and CSS inline images.
Key Features
- Base64 → Image Conversion – Decode Base64 strings to images with preview and download
- Image → Base64 Conversion – Encode image files to Base64 strings
- Drag and Drop – Easily upload images by dragging
- Multiple Format Support – PNG, JPG, GIF, WebP, SVG, BMP, ICO and more
- Image Info Display – View width, height, format, and size information
- Data URI Option – Choose to include or exclude the prefix
- Image Download – Download converted images in their original format
How to Use
Base64 → Image Conversion
- Select the “Base64 → Image” tab.
- Paste the Base64 string into the input field.
- Click the “Convert to Image” button.
- Check the image in the preview and save it using the “Download Image” button.
Image → Base64 Conversion
- Select the “Image → Base64” tab.
- Drag an image to the dropzone or click to select a file.
- The Base64 string is automatically generated.
- Use the “Copy Base64” button to copy the result to your clipboard.
Who Is This For?
- Web developers who need to embed images inline in HTML/CSS
- Marketers who need to include images in email templates
- Developers who need to view Base64 images from APIs or JSON
- Users who want to include images without external image hosting
- Users who want to save Base64 encoded images as original files
Frequently Asked Questions
What is a Base64 image?
Base64 is a method of encoding binary data as text. When you convert an image file to Base64, it becomes a text string that can be embedded directly in HTML/CSS or transmitted via JSON. The Data URI format is represented as “data:image/png;base64,…”
What image formats are supported?
This tool can convert most image formats supported by browsers, including PNG, JPEG/JPG, GIF, WebP, SVG, BMP, and ICO. File sizes up to 10MB are supported.
What is the Data URI prefix?
The Data URI prefix (e.g., “data:image/png;base64,”) specifies the MIME type and encoding method of the Base64 data. This prefix is required when using images in HTML img tags or CSS background-image. For API communication, only the pure Base64 string is often used.
What are the benefits of using Base64 images?
Base64 images are embedded directly in HTML/CSS without additional HTTP requests, making them convenient for small icons and logos. However, they are about 33% larger than the original file and cannot be cached by browsers, so they are recommended only for small images.