Base64 to Image Converter
Paste a Base64 string or full data URI below to instantly preview it as an image and download it as a regular image file.
How to Use This Tool
Copy your Base64 string
This can come from code, an API response, or a database field.
Paste it into the box above
With or without the data:image/...;base64, prefix — both work.
Click "Convert to image"
See an instant visual preview of the decoded image.
Click Download
Save the decoded result as a regular image file.
About the Base64 to Image Converter
This tool does the reverse of Base64 encoding — it takes a Base64-encoded string (a text representation of binary image data) and decodes it back into an actual, viewable and downloadable image file.
This is useful when you're working with an API response, a database field, or a piece of code that stores an image as a Base64 string, and you need to quickly verify what image it actually represents, or extract it as a standalone file.
You can paste either a full data URI (starting with data:image/png;base64, or similar) or just the raw Base64 characters on their own — this tool handles both, defaulting to PNG format if no explicit MIME type prefix is present.
Frequently Asked Questions
What's the difference between a raw Base64 string and a data URI?
A data URI includes a prefix like data:image/png;base64, that specifies the MIME type before the actual encoded data begins. A raw Base64 string is just the encoded characters on their own, without that type information — this tool accepts both.
What image format will my decoded file be saved as?
If your input included a data URI prefix specifying the type (like image/jpeg or image/webp), that format is used. If you pasted a raw Base64 string with no prefix, the tool defaults to treating it as PNG.
Why did my conversion fail with an error?
This usually means the pasted text isn't valid Base64-encoded data, often due to a copy-paste error that included extra whitespace, missing characters, or non-Base64 text mixed in. Double-check that you copied the complete, unmodified string.
Can I use this to preview a Base64 string in an API response before saving it?
Yes — this is one of the most common use cases. Paste the Base64 value from a JSON response or debugging tool to instantly see what image it actually represents before deciding whether to save it.
Is there a size limit on how large a Base64 string I can paste in?
There's no artificial limit imposed by this tool, though extremely long strings pasted into a browser text field may become unwieldy to work with, and very large decoded images may take a moment longer to render as a preview.
Is my pasted Base64 data sent to a server?
No — decoding happens entirely in your browser using standard JavaScript and image APIs. Nothing you paste is uploaded or stored anywhere.