What does Convert to ICO do?
Convert to ICO is a free online tool that can convert images to ICO favicon format. The ICO result from Convert to ICO is a separate copy to inspect before you use it elsewhere. One possible use is owned brand marks tested as favicons.
ICO format change creates an icon file at a square size chosen in the form. The choices range from 16 to 256 pixels, with 32 as the default.
It is useful for preparing a favicon or testing an icon in software that expects ICO. Resizing uses the converter's normal aspect-ratio behavior, so a non-square source may need cropping beforehand.
Check the smallest planned display size, where fine decorative details often stop being legible. ICO is a file type for icons.
At a small size, a detailed logo can become hard to recognize. Try the design at the exact size selected in the form.
Cropping a wide source to a square can help before conversion. Keep a larger master image for future icon variants.
Create an ICO icon from an image online: steps
Before using Convert to ICO, decide what the new copy must contain and where it will be used. Start with a simple, preferably square source and choose the planned icon size. Review the upload area and all values required by the current Convert to ICO form.
Choose the source
Preview a favicon at its true browser-tab size. For Convert to ICO, choose one source from your device. Keep a source copy for another attempt.
Review the form values
Size (px) controls a value used by Convert to ICO. The starting Size (px) value is 32.
Run the file task
Use Process Convert to ICO after checking the source and form values. Wait for the job to finish. An error means this attempt failed.
Save and check the output
Check the icon at its actual small size, checking edges, see-through pixels and visible recognizability. Store the output on your device. Name this copy separately from the original.
Icon file: uses for Convert to ICO
Convert to ICO can help with app icons prepared for an ico workflow. It can also be used for simple symbols evaluated at small width and height. The ICO result from Convert to ICO must suit the intended reading or editing step, so keep the source until that check is complete.
- Owned brand marks tested as favicons.
- App icons prepared for an ICO workflow.
- Simple symbols evaluated at small width and height.
- Preview assets made for a browser-tab design.
Formats and limits for Convert to ICO
The Convert to ICO form accepts the image formats in the table sources. Each Convert to ICO upload can be up to 300 MB, which equals 300 MiB. The allowed suffixes on the Convert to ICO page do not prove that a source has valid content inside it.
| Accepted formats | Maximum file size | Output |
|---|---|---|
| JPG, JPEG, PNG, WEBP, BMP, GIF | 300 MB per file (300 MiB upload limit) | ICO |
One chosen size does not promise a complete multi-resolution favicon package. It does not include HTML installation or browser-cache management.
How this tool works
Convert to ICO uses ImageMagick to handle the source on the server. The Convert to ICO request uses your chosen input rather than any local editing project left on your device. Check the ICO contents produced by Convert to ICO before treating them as ready for another app or reader.
For Convert to ICO, your browser uploads the source to our file-processing server. This is a server task, not local editing.
Files are due for deletion within 1 hour. Cleanup runs during normal service operation. Keep a local download for future use.
Convert to ICO questions and answers
If Convert to ICO gives an unexpected result, start by checking the source type and the values used in the form. Check the ICO contents from Convert to ICO as well as the filename or displayed message. For another result type, compare Convert to ICO with the separate tools described in these answers.
What matters when using Convert to ICO?
Check clear edges on both light and dark backgrounds. View that area at its intended display size. Note any differences that affect your purpose.
Why try Crop Image?
Crop Image offers another task beside Convert to ICO: crop image by geometry string. Crop Image returns PNG. The stated ICO output from Convert to ICO is not a listed input type for Crop Image.
Why try Resize Image?
Resize Image offers another task beside Convert to ICO: fit an image within width and height bounds while preserving proportions. Resize Image returns PNG. The stated ICO output from Convert to ICO is not a listed input type for Resize Image.
Why try Convert to PNG?
Convert to PNG offers another task beside Convert to ICO: convert images to PNG format. Convert to PNG returns PNG. The stated ICO output from Convert to ICO is not a listed input type for Convert to PNG.
What if my ICO result does not open?
For a failed Convert to ICO result, first confirm that the download completed and that the viewer supports ICO. Try another local viewer for that format.
Record any error message for support. Keep private source material out of the report.
How do I report a problem with Convert to ICO?
Contact support with the Convert to ICO page name, source format and the error you saw. Mention any relevant form settings you chose. Do not send passwords or private attachments.