Base64 to ICO Converter | JPEGConvert
Base64 input
Paste a data URL or raw Base64. We will tidy common issues automatically.
Auto-fixes applied: {{ fixDetails.join(', ') }}.
Potential issues: {{ warningDetails.join(', ') }}.
Example:
{{ sampleSnippet }} {{ errorMessage }}
- {{ detail }}
Your preview will appear here.
Converting your Base64 data...
Unable to convert this Base64 input.
Conversion complete. Download when you are ready.
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How to convert Base64 to ICO
1. Paste Base64 input
Paste a data URL or raw Base64 string. We will clean up line breaks and missing padding automatically.
2. Preview and download
Check the preview, then download the converted file when the conversion finishes.
Paste Base64 input
Paste a data URL or raw Base64 string to begin the conversion.
Auto-fix common issues
We remove line breaks, fix padding, and normalize URL-safe Base64 when possible.
Input type detection
We detect the image type from the Base64 data to guide the output.
ICO output
ICO is the standard format for icons and favicons.
Preview the result
Confirm the conversion before you download the file.
Download ICO
Save the converted ICO file to your device.
Frequently Asked Questions
Yes. The converter will try to detect the image type. If detection fails, add a header like data:image/png;base64,...
The Base64 string may be incomplete or include invalid characters. Make sure you copied the full value.
We read the data URL header when available and confirm the file signature from the data.
Downloads use a base64-image filename with the correct extension.
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