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Elixuvo

Base64 to Image & Image to Base64 Converter

Convert images to Base64 Data URIs, raw strings, HTML img tags, and CSS rules, or decode Base64 strings to downloadable images. 100% in-browser processing.

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How to use this tool

  1. Choose your direction: 'Image to Base64' or 'Base64 to Image'.

  2. In Image to Base64 mode, upload or drag-and-drop any image (PNG, JPG, WebP, SVG, GIF, ICO) or paste from clipboard.

  3. Select your desired output format tab: Data URI, Raw Base64, HTML <img> tag, or CSS background-image rule, and click Copy.

  4. In Base64 to Image mode, paste your Base64 string or Data URL into the decoder input field.

  5. Inspect the decoded live preview and click Download Decoded Image to save the file locally.

Frequently asked questions

Quick answers about file privacy, processing modes, formats, and device support.

The tool uses native web APIs (FileReader, Uint8Array, atob/btoa, and Blob) directly in your browser's local memory. The conversion executes entirely on your device with zero API calls or server transmission.
Base64 represents 8-bit binary data using 6-bit ASCII characters (A-Z, a-z, 0-9, +, /). Because 3 binary bytes (24 bits) require 4 Base64 characters (24 bits), the encoded string is mathematically 33.3% larger than the raw binary asset.
Base64 is ideal for small icons, logos, loaders, and SVG sprites (typically under 10-20 KB) because embedding them inline eliminates extra HTTP round-trips. For large photos, separate image files are usually preferred for better browser caching.
Yes! The decoder automatically inspects the magic byte headers of the raw Base64 string to detect whether the file is PNG, JPEG, WebP, GIF, SVG, or ICO, reconstructing the correct file type automatically.
Never. All conversion takes place in your browser tab's RAM and is discarded as soon as you navigate away or close the page.

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