πΌοΈ Select or Drag Image
π Base64 Result
About Image to Base64 Encoder
Image to Base64 encoding converts image binary data into Base64 text strings. This is essential for embedding small images in web development and transmitting image data in APIs.
Use Cases
- Embedding small icons in HTML/CSS (reducing HTTP requests)
- Image data fields in JSON/API payloads
- Data URL image references
- Storing small images in databases
- Embedded images in HTML emails
Features
- Supports PNG, JPG, GIF, SVG, WebP, BMP and more
- Auto-detects MIME type for correct Data URL prefix
- Real-time image preview
- Copy raw Base64 or full Data URL
β Frequently Asked Questions
β What is image to Base64 conversion and what is it used for?
Image to Base64 converts image files into Base64 encoded strings. Uses: 1) Embedding small images in HTML/CSS (reducing HTTP requests); 2) Transferring image data in JSON; 3) Passing images in API calls; 4) Using images as Data URLs. The converted string can be used directly in src attributes.
β What image formats are supported?
All common formats: PNG, JPEG/JPG, GIF (including animated), SVG, WebP, BMP, ICO, etc. Different formats have different Base64 prefixes, e.g., data:image/png;base64,... The tool automatically detects the format and generates the correct prefix.
β Does Base64 encoding increase file size?
Yes. Base64 encodes binary data as text, increasing size by approximately 33% (4/3 of original). For large images, use file URLs instead of Base64 embedding. Base64 is generally recommended only for small images under 10KB.
β Is image to Base64 conversion safe?
Safe. All processing happens locally in your browser. The FileReader API reads the image and encodes it to Base64 in browser memory. Your image data never leaves your device.
β How to use embedded Base64 images?
In HTML: 
to display directly. In CSS: background-image: url('data:image/png;base64,encoded_string'). When copying, the tool automatically includes the 'data:image/...;base64,' prefix.