Do I need the full data URI, or just the Base64 payload?
Either works, but pasting the full data URI (with the data:image/...;base64, prefix) gives the most reliable mime-type detection.
Image Tools
Convert Base64 Back into an Image
Paste a Base64 data URI and preview it as an image you can download, right in your browser.
What this tool expects you to paste
Paste a Base64 image string into the field and this tool renders it directly as an image preview you can download. It reads the string you paste to guess the mime type — if it sees `image/jpeg` or `image/webp` mentioned, it uses that; otherwise it defaults to PNG. Pasting the full data URI (starting with `data:image/...;base64,`) gives the most reliable result, since the browser can render that directly.
This is the reverse of Image to Base64 on this site — if you generated a string there, pasting it back here should reproduce the original image exactly, since no re-encoding happens in either direction.
Workflow at a glance
Use this quick flow to understand where the tool fits in your work and what to review before relying on the output.
Review checklist
Before
Copy the complete string, including the data:image/...;base64, prefix if you have it, to avoid a truncated paste.
After
Confirm the preview looks correct before downloading, especially if the mime type had to be guessed.
When you need to decode a Base64 image
Use it when you have a Base64 string — from an API response, a CSS file, a database export, or a saved snippet — and need to see it as an actual image rather than a wall of text.
Who needs to decode a Base64 string
Developers debugging an API response
Preview a Base64-encoded image field to confirm it's the expected picture.
Anyone extracting an image from CSS
Turn an inlined data URI found in a stylesheet back into a downloadable image.
Support engineers
Preview an image sent as a Base64 string in a bug report or log.
Anyone verifying a saved encoding
Confirm a Base64 string generated earlier decodes back to the correct image.
What this converter does
Direct preview from pasted text
The string is rendered as an image immediately, without a separate decode step.
Mime type detection
Looks for `image/jpeg` or `image/webp` in the pasted string, defaulting to PNG otherwise.
Downloadable result
Save the previewed image as a file once it renders correctly.
No re-encoding
The image data itself isn't modified — you get back exactly what was encoded.
Decoding an image step by step
- 1Paste the Base64 string or full data URI into the input field.
- 2Watch the preview render as an image.
- 3Check that the preview looks correct.
- 4Download the image once you've confirmed it renders as expected.
Where this comes up
Previewing a Base64-encoded image field from an API response.
Turning an inlined data URI found in a CSS file back into a downloadable image.
Previewing an image sent as a Base64 string in a bug report.
Confirming a Base64 string generated earlier decodes back to the correct picture.
Where the decoding happens
The string is rendered directly in your browser as an image — nothing you paste is sent to a server.
Getting a clean preview
- Paste the full data URI (starting with data:image/...;base64,) when you have it, since that gives the browser the mime type directly.
- If you only have the raw Base64 payload without a prefix, expect the tool to default to PNG unless the string itself mentions jpeg or webp.
- Check the preview before downloading — a garbled or blank preview usually means the string was truncated or copied incorrectly.
- Compare the downloaded file against the original image if you're verifying a round-trip encode/decode.
Base64 decode mistakes to avoid
Pasting a truncated string
A cut-off Base64 string will fail to render correctly or produce a broken image.
Assuming the mime type is always right
Without a data URI prefix, the tool guesses based on keywords in the string and defaults to PNG if none match.
Expecting compression or resizing
The image renders exactly as encoded — this tool doesn't modify the decoded result.
Confusing this with an OCR or file-repair tool
It only reverses a valid Base64 encoding — it can't fix or interpret corrupted data.
If the preview doesn't render
Base64 to Image is a quick way to turn an encoded string back into something you can see and download. If the preview doesn't render, the most common cause is a truncated or incorrectly copied string rather than a problem with the tool itself.
Need hands-on help?
Get help with documents, SEO, content, or website fixes
Use this tool for quick work. If you need a real file prepared, a page reviewed, or a website issue fixed, send the URL and describe the problem.
FAQ
Base64 to Image FAQ
Answers for using Base64 to Image on I Love Tool XYZ.
How does it know the image format?
It looks for image/jpeg or image/webp mentioned in the pasted string and defaults to PNG otherwise.
Does decoding change the image?
No. The image data isn't re-encoded — you get back what was originally encoded.
Is my pasted string sent to a server?
No. The preview renders directly in your browser.