How to Convert FAX to ICO — Quick & Free
Fast, instant FAX to ICO conversion. No signup required. Just drop your .fax file and get .ico in seconds.
Batch Settings
About FAX to ICO Conversion
Short answer: yes, you can convert FAX to ICO online for free, and quality is well preserved with the right settings. Just upload your .fax file to CocoConvert, pick ICO as the output, and click Convert. The whole process takes seconds.
Now for the details. FAX is a widely used file format. ICO is the icon format used for website favicons and Windows application icons. Converting between these two formats lets you convert between formats quickly.
Your FAX file is decoded and re-encoded as ICO. Converting FAX to ICO maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert runs entirely online — no software to install, no account to create. Your files are encrypted during upload (TLS), processed on isolated servers in Germany, and permanently deleted after 24 hours. It works in Chrome, Safari, Firefox, Edge, and all mobile browsers.
Need to convert more than one file? Free users can do 5 per hour. Pro gets 100 per hour with files up to 5 GB each.
How to Convert FAX to ICO
- 1
1. Upload FAX
Drop your .fax file onto the page (or tap "Browse" on mobile). Add multiple files for batch conversion.
- 2
2. Select ICO
Choose .ico from the output dropdown. Settings are pre-configured for best results.
- 3
3. Convert
One click. The server handles all the heavy lifting using FFmpeg and Sharp.
- 4
4. Download
Your .ico file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert FAX to ICO
Your FAX file is decoded and re-encoded as ICO.
Your FAX file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in ICO format
The converted file is ready for download
Format Comparison
FAX
.fax file
| Extension | .fax |
| MIME Type | image/g3fax |
| Category | Image |
ICO
.ico file
| Extension | .ico |
| MIME Type | image/x-icon |
| Category | Image |
Should You Convert FAX to ICO?
When to Convert
- ✓When you need a ICO file
Frequently Asked Questions
Is FAX to ICO conversion free?
Yes. CocoConvert offers free FAX to ICO conversion with generous daily limits — 25 minutes of processing time and up to 5 files per hour (250 MB each). Pro plans remove these limits.
How fast is FAX to ICO conversion?
Most files convert in 2–10 seconds depending on size. Large image files may take 30 seconds. Batch jobs process in parallel for maximum speed.
What happens to my files after conversion?
Your uploaded FAX file and the converted ICO file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting FAX to ICO lose quality?
Converting FAX to ICO maintains high quality with CocoConvert's optimised encoder settings.
Can I convert ICO back to FAX?
Yes, CocoConvert supports ICO to FAX conversion as well. However, if the original conversion involved lossy compression, converting back won't recover the lost data.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.