How to Convert FAX to RGB — Quick & Free
Fast, instant FAX to RGB conversion. No signup required. Just drop your .fax file and get .rgb in seconds.
Batch Settings
还在为那些老旧传真文件发愁吗？无论是商务合作中的合同，还是学校里老师发下来的通知，传真（FAX）格式的文件在日常使用中总有些不便。它们常常是黑白的，图像质量不高，而且难以直接在手机或电脑上进行编辑和美化。现在，我们提供一个简单快捷的解决方案，帮助您将这些传统传真文件转换为色彩鲜明的RGB图像格式。转换后，您的文件将焕然一新，色彩更丰富，细节更清晰，无论是分享到微信，还是用于设计排版，都将更加得心应手。告别低分辨率的黑白世界，拥抱清晰多彩的数字生活，让您的文件内容以最佳状态呈现。
- 微信分享美化
- 游戏素材制作
- 电子画册出版
在大陆及东南亚地区，由于移动互联网的普及，将传统FAX文件转换为RGB格式，能更好地适应社交媒体（如微信朋友圈）的分享习惯及各类数字内容创作需求，避免了黑白图像在视觉呈现上的局限性。
About FAX to RGB Conversion
Short answer: yes, you can convert FAX to RGB online for free, and quality is well preserved with the right settings. Just upload your .fax file to CocoConvert, pick RGB as the output, and click Convert. The whole process takes seconds.
Now for the details. FAX is a widely used file format. RGB is a widely used file format. Converting between these two formats lets you convert between formats quickly.
Your FAX file is decoded and re-encoded as RGB. Converting FAX to RGB 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 RGB
- 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 RGB
Choose .rgb 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 .rgb file is ready. Download it directly or get all files as a zip archive.
What Happens When You Convert FAX to RGB
Your FAX file is decoded and re-encoded as RGB.
Your FAX file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in RGB format
The converted file is ready for download
Format Comparison
FAX
.fax file
| Extension | .fax |
| MIME Type | image/g3fax |
| Category | Image |
RGB
.rgb file
| Extension | .rgb |
| MIME Type | image/x-rgb |
| Category | Image |
Should You Convert FAX to RGB?
When to Convert
- ✓When you need a RGB file
Frequently Asked Questions
Is FAX to RGB conversion free?
Yes. CocoConvert offers free FAX to RGB 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 RGB 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 RGB file are both automatically deleted from our servers within 24 hours. They are never shared, sold, or analysed.
Does converting FAX to RGB lose quality?
Converting FAX to RGB maintains high quality with CocoConvert's optimised encoder settings.
Can I convert RGB back to FAX?
Yes, CocoConvert supports RGB 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.