Base64 to Image

Decode and download in one step

Paste a full data URL or just the raw Base64 payload and the tool renders the image immediately, detecting PNG, JPG, WebP, GIF or SVG. A single click downloads the decoded file with the correct extension.

Decoding runs locally, so pasted strings never leave your browser.

Useful when

• Inspecting Base64 images pulled from code or APIs
• Recovering an inlined image as a real file
• Verifying a data URL renders correctly

Key features at a glance

• Accepts a full data URL or raw Base64 payload
• Auto-detects PNG, JPG, WebP, GIF, and SVG
• Live preview of the decoded image
• One-click download with the correct file extension
• 100% in-browser — pasted strings are never uploaded
• Works offline once the page has loaded

What decoding Base64 does

Base64 to Image performs the reverse of encoding: it takes the text representation of an image and reconstructs the actual binary file. You paste either a complete data URL — beginning with data:image/...;base64, — or just the raw Base64 payload, and the tool turns those characters back into a real, viewable picture you can download.

Because Base64 is a lossless representation, decoding recovers the original file exactly, byte for byte. Nothing is approximated or degraded; the image you get out is identical to the one that was encoded. The tool also auto-detects the image type from the data, so it applies the correct extension whether the source was a PNG, JPG, WebP, GIF, or SVG.

Why you would need to decode Base64

Developers frequently encounter Base64 image data embedded in code, configuration files, API responses, and databases, where storing an image as text is convenient. But that text is unreadable to humans, so when you need to actually see the image — to verify it is correct, inspect what an API returned, or recover an asset — you have to decode it back into a viewable file.

This comes up when debugging: an API might return a Base64 thumbnail and you want to confirm it renders properly, or a colleague pastes a data URL and you need the underlying image. Rather than writing a script or guessing whether the string is valid, you paste it here and immediately see and save the result, turning an opaque blob of text into a concrete file.

Data URLs versus raw Base64

There are two common forms you might encounter. A full data URL includes a prefix that declares the image type and encoding, like data:image/png;base64, followed by the payload — this is what appears in CSS and HTML. Raw Base64 is just the payload on its own, without the prefix, which is how image data often appears in JSON or database fields.

This tool handles both. If you paste a complete data URL, it reads the declared type directly; if you paste raw Base64, it inspects the data to detect the format. That flexibility means you do not have to reformat the string or strip and add prefixes by hand — whatever form the Base64 arrives in, the tool decodes it and gives you a proper image file.

Tips for decoding Base64 images

• Paste either a full data URL or just the raw Base64 — both work
• Use it to verify that an API's image data renders correctly
• Check the detected format if the download extension looks wrong
• Strip surrounding quotes or whitespace if a paste fails to decode
• Pair it with the image-to-Base64 encoder for round trips

Why choose our Base64 to Image tool?

Our tool is completely free with no signup, no limits, and no subscription. Decoding runs locally in your browser, so pasted strings never leave your device, the image appears instantly, and the tool works offline.

It is one of more than 200 free tools on ToopTools, and you can pin it to your My Workspace, a personalized workspace where you keep the tools you use most in a single dashboard. Beside the image-to-Base64 encoder and other developer tools, it completes a private encode-and-decode workflow.

Common use cases

Developers use Base64 to Image to inspect image data pulled from code, APIs, or databases, confirming that an encoded thumbnail or asset renders as expected. It is the fastest way to turn an opaque data URL back into something you can actually look at.

It is also used to recover an inlined image as a real file — for example extracting an icon embedded in CSS — and to verify that a data URL is valid before relying on it. Because it auto-detects the format and downloads with the right extension, the recovered file is ready to use.

Is the Base64 to Image tool free?

Yes. It is completely free with no account, no sign-up, and no usage limits. Decode as many strings as you like at no cost.

Can I paste just the raw Base64 without the data URL prefix?

Yes. The tool accepts both a full data URL and a raw Base64 payload. If there is no prefix, it inspects the data to detect the image format automatically.

Does decoding lose any quality?

No. Base64 is a lossless text representation, so decoding reconstructs the original file exactly, byte for byte. The image you download is identical to the one that was encoded.

Which formats can it decode?

It auto-detects and decodes common image formats including PNG, JPG, WebP, GIF, and SVG, applying the correct file extension to the downloaded image.

Why won't my Base64 string decode?

Usually the string contains surrounding quotes, whitespace, or characters that are not part of the Base64 data. Remove anything outside the encoded payload and try again; a truncated string will also fail.

Are pasted strings kept private?

Yes. Decoding happens entirely in your browser, so the Base64 you paste never leaves your device. The tool is private and works without an internet connection.

How do I convert a Base64 string back to an image?

Paste your Base64 string — with or without the data URL prefix — and the tool instantly decodes it and shows a preview. Click download to save the result as an image file, ready to use anywhere.

Does the Base64 to Image tool work offline?

Yes. The decoding happens entirely in your browser, so once the page has loaded the tool works without an internet connection, and the strings you paste are never uploaded — they stay private on your own device.