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Sys-Metrics

Image to Base64 & Base64 to Image

Convert images (PNG, JPG, WebP, SVG, GIF, ICO) into Base64 Data URIs for inline HTML/CSS embedding, or decode Base64 strings back into downloadable image files with real-time preview.

Drag & drop an image here, or browse
Supports PNG, JPG, WebP, SVG, GIF, ICO (100% processed in browser memory)

Quick Summary & Direct Answer

Base64 is a binary-to-text encoding algorithm that expresses raw bytes in an ASCII radix-64 representation. In web engineering, Data URIs (data:[mime-type];base64,[data]) allow inline inclusion of SVG icons, thumbnails, and logos directly within HTML documents and CSS stylesheets without triggering independent HTTP GET requests.