Base64 to Image Converter
Convert Base64 encoded strings and data URIs back into viewable and downloadable images.
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Base64 to Image converts encoded image text back into viewable graphic files. When you work with inline graphics, API payloads, or embedded data URIs in CSS and HTML stylesheets, image files are often represented as long alphanumeric strings. This online utility decodes raw Base64 data and reconstructs the underlying image file in your chosen target format.
The converter handles raw Base64 strings as well as data URI prefixes containing media type declarations. When a data URI prefix with a comma is supplied, the tool extracts the encoded content directly after the separator. You can export the decoded graphic to formats such as PNG or JPEG. When exporting to JPEG, transparent RGBA or palette images automatically convert to standard RGB color channels to ensure clean file generation. If the input text is blank or the payload contains invalid characters that prevent image decoding, the tool alerts you to provide valid data.
Instructions
- Paste your Base64 string or full data URI into the Base64 input box.
- Specify the desired image format, such as PNG or JPEG (defaults to PNG).
- Select the conversion button to decode the text and generate your graphic file.
- Preview or download the reconstructed image from the output panel.
Examples
- Inputting a raw Base64 string with format PNG reconstructs a transparent PNG icon.
- Pasting a complete data URI with a JPEG format converts transparent alpha channels to standard RGB and generates a JPEG image.
FAQ
Can I paste a data URI containing a prefix like data:image/png;base64,?
Yes. The converter detects data URI prefixes and automatically decodes the Base64 data after the comma separator.
What happens if I choose JPEG for an image with transparency?
When converting to JPEG, transparent RGBA or palette images are automatically converted to standard RGB color channels.
Why does the conversion fail on certain text strings?
The tool cannot decode the input if it is empty, contains invalid characters, or does not represent a valid image file.
Do I have to specify an output format?
No. If you leave the output format blank, the tool defaults to generating a PNG image.