Convert images to Base64 data URIs for embedding in HTML, CSS and JSON
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Click to select image or drag and drop
PNG, JPG, GIF, SVG, WebP supported
Base64 Output
File Size —
Base64 Size —
Overhead —
About This Tool
The image to Base64 converter transforms images into Base64-encoded data URIs, allowing you to embed images directly in HTML, CSS, and JSON without separate HTTP requests. Supports PNG, JPG, WebP, GIF, SVG, and BMP.
Common Use Cases
Embedding small icons and logos in CSS
Inlining images in HTML email templates
Embedding images in JSON API payloads
Reducing HTTP requests for small assets
Storing images in localStorage or IndexedDB
Frequently Asked Questions
A data URI embeds file content directly in HTML or CSS. For images, this allows inline embedding without a separate file request.
No. Base64 increases file size by approximately 33%. For images larger than 10KB, serve them as separate files with caching headers.
PNG, JPG/JPEG, WebP, GIF, SVG, and BMP are all supported with correct MIME types.