What This Tool Does
This tool decodes a base64 string or data URI back into a viewable image. Paste raw base64 or a full data:image/...;base64,... string, and it's rendered instantly as a live preview, along with a data URI, plain base64, and ready-to-use HTML, CSS, and Markdown snippets.
How to Convert Base64 to an Image
Paste a base64 string or a data URI into the input. If a full data URI is pasted, its MIME type is used directly, if raw base64 is pasted, the MIME type is detected automatically from the decoded binary signature. The image renders immediately in the Preview tab, use the other tabs to copy the Data URI, Base64, HTML, CSS, or Markdown output.
Automatic MIME Type Detection
Raw base64 without a data URI prefix doesn't carry its own MIME type, so this tool inspects the start of the decoded bytes to recognize common image formats, PNG, JPEG, GIF, WebP, AVIF, and SVG, and builds the correct data URI automatically. Pasting a full data URI instead always uses the MIME type it already specifies.
Preview Tools: Rotate, Zoom, Download, and Print
The Preview tab includes rotate left and right, zoom in and out, a reset button, and dedicated download, print, and fullscreen controls, letting you inspect and export the decoded image without leaving the page.
Common Uses for a Base64 to Image Converter
Checking what a base64 blob actually contains before using it in code, viewing an image embedded in a JSON payload, API response, or database field, and quickly extracting a usable image file from a data URI copied out of browser dev tools are all common reasons to convert base64 back to an image. Use it as a base64 image viewer online whenever you need to convert base64 to image data, a base64 image decoder where you paste base64 view image results instantly, a base64 to png converter or base64 to jpg converter, a data uri to image converter, and a base64 image preview online to decode base64 image online without installing anything.