About Image Base64
Image Base64 encoder converts images to Base64 strings or decodes back, for inlining images in HTML/CSS/JSON, reducing HTTP requests, data URI scheme. Supports preview, local processing.
How to Use
- Upload image or paste Base64 string
- Choose encode or decode
- View result and preview
- Copy Base64 string or download image
Frequently Asked Questions
- Why convert image to Base64?
- Inline in HTML/CSS to reduce HTTP requests and boost first paint; transfer image data in JSON APIs; embed images in emails without external links; alternative to small icon sprites.
- Downsides of Base64 images?
- ~33% size increase (encoding overhead); cannot be browser-cached; large images bloat HTML/CSS files. Suggest only for images under 10KB.
- How to use Base64 image in CSS?
- background-image: url(data:image/png;base64,iVBORw0KG...). Browser decodes and displays directly, no extra request.