Free, in-browser Base64 to image decoder. Paste any Base64 string — with or without a data URI prefix — and instantly preview, inspect, and download the decoded image. No upload, no server, no sign-up required.

Paste Base64 String

Decoded image preview
Format: — Dimensions: — Decoded size: —

How it works

  1. Paste a Base64-encoded string into the text area above.
  2. The tool automatically strips any data:image/...;base64, prefix and removes whitespace/newlines.
  3. It decodes the string in your browser, detects the image format (PNG, JPEG, GIF, WebP, SVG…), and renders a live preview.
  4. Inspect the detected format, pixel dimensions, and decoded file size.
  5. Download the image file or copy the full data URI to your clipboard.
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