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Base64 to Image Converter

Turn a Base64 string or data URI back into an image file.

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Decoded image

Quick Tool Overview

The Base64 to Image Converter decodes a pasted string or data URI back into a real file. It accepts raw Base64 or a full data URI, tolerates the line breaks that come from copying out of source, and works out the actual format from the decoded bytes rather than trusting a prefix that may be wrong.

What it does
Decodes Base64 or a data URI into an image
You give it
A pasted string from HTML, CSS or JSON
You get back
The image file with the right extension
Best for
Debugging payloads and pulling assets out of markup
Image Tools Free, unlimited use No sign-up Runs in your browser

About the Base64 to Image Converter

Base64 image data turns up embedded in HTML, in CSS, in JSON payloads and in email source, and at some point you need the actual picture rather than the string. Paste it in and the image appears.

The parser accepts a raw Base64 blob or a complete data URI with its media type prefix, and tolerates the line breaks and whitespace that come with copying out of a source file. The real format is detected from the decoded bytes rather than trusted from the prefix, so a data URI mislabelled as PNG when it is actually JPEG still downloads with the correct extension. Dimensions and decoded size are reported alongside.

Key features of the Base64 to Image Converter

Format detected from the bytes

The file signature decides the extension, so data mislabelled in its prefix still downloads correctly.

Tolerant parser

Line breaks, whitespace and URL-safe Base64 are all handled rather than rejected.

Instant preview

The decoded image appears as you paste, with its dimensions and real size reported.

Clear failures

A truncated or corrupt string is reported as such instead of producing a silently broken file.

Nothing leaves the page

Blobs pasted from an email or an API response often contain something private, and none of it is transmitted.

How to use the Base64 to Image Converter

  1. 1

    Paste the string

    A raw Base64 blob or a full data:image/... URI. Line breaks are fine.

  2. 2

    Check the preview

    The decoded image appears immediately, with its detected format and dimensions.

  3. 3

    Confirm the format

    The real type is read from the file signature, not from the prefix, so mislabelled data is still handled.

  4. 4

    Download the file

    Save it with the correct extension for what it actually is.

Frequently asked questions

A way of embedding a file inside a URL. It looks like data:image/png;base64, followed by the encoded bytes, and lets an image live directly inside HTML or CSS instead of in a separate request.

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