FTS Won't Open? Convert to FAX Instantly
Fast, instant FTS to FAX conversion. No signup required. Just drop your .fts file and get .fax in seconds.
Batch Settings
还在为FTS文件无法直接发送传真而烦恼吗？无论是处理工作文档，还是分享个人资料，有时我们确实需要将特定格式的文件转换成传真机能够识别的图像格式。FTS文件，作为一种常见的全文搜索索引文件，本身并不适合直接传输。但别担心，我们提供的在线工具能帮您轻松解决这个问题。只需简单几步，就能将您的FTS文件转换成标准的传真格式（如TIFF或PDF），让您的信息顺畅抵达。无论您身处何地，都能高效便捷地完成文件转换，省去安装复杂软件的麻烦，随时随地满足您的传真需求。
- 公司内部文件归档与共享
- 游戏攻略或截图传真给朋友
- 重要合同或证件快速发送
在大陆、台湾和新加坡地区，传真仍是部分政府机构、传统企业以及医疗领域常用的沟通方式。将FTS转换为传真兼容格式，能有效打通数字文件与传统通信之间的壁垒，确保信息传递的广谱性。
About FTS to FAX Conversion
Dealing with a FTS file that won't open on your device? You're not alone — FTS compatibility issues are one of the most common reasons people search for a file converter. FTS is a widely used file format.
The fix is simple: convert your FTS to FAX. FAX is a widely used file format. This conversion lets you convert between formats quickly, solving the problem in seconds rather than hours of troubleshooting.
Converting FTS to FAX maintains high quality with CocoConvert's optimised encoder settings.
CocoConvert processes your FTS file on secure servers in Germany — upload, convert, download. Your files are encrypted via TLS and automatically deleted within 24 hours. No account needed, no software to install, and it works on any device with a browser.
This conversion is ideal when you When you need a FAX file.
The conversion engine behind CocoConvert uses FFmpeg, Sharp, and qpdf — the same open-source libraries trusted by Netflix, YouTube, and enterprise platforms. Pro users can batch convert up to 100 files at once.
How to Convert FTS to FAX
- 1
Add your FTS file
Drag and drop your .fts file into the converter, or tap "Browse" to pick it from your device. Multiple files are supported for batch processing.
- 2
Pick FAX output
Select .fax as the target format. CocoConvert automatically applies the best quality settings for this conversion.
- 3
Start conversion
Hit the Convert button. The image engine processes your file server-side — no CPU drain on your device.
- 4
Save your file
Once done, download your .fax file. For batch jobs, download all at once as a zip.
What Happens When You Convert FTS to FAX
Your FTS file is decoded and re-encoded as FAX.
Your FTS file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in FAX format
The converted file is ready for download
Format Comparison
FTS
.fts file
| Extension | .fts |
| MIME Type | image/fits |
| Category | Image |
FAX
.fax file
| Extension | .fax |
| MIME Type | image/g3fax |
| Category | Image |
Should You Convert FTS to FAX?
When to Convert
- ✓When you need a FAX file
Frequently Asked Questions
Why won't my FTS file open?
FTS files may not open if your device lacks the right codec or application. Converting to FAX — a more widely supported format — usually resolves this. FAX is a widely used file format.
Is it safe to convert FTS to FAX online?
Yes. CocoConvert encrypts your file via TLS, processes it on isolated servers in Germany, and permanently deletes it within 24 hours. Your files are never shared or analysed.
Will I lose quality converting FTS to FAX?
Converting FTS to FAX maintains high quality with CocoConvert's optimised encoder settings. CocoConvert uses high-quality encoder defaults to preserve as much fidelity as possible.
How large can my FTS file be?
Free users can convert files up to 250 MB each. Pro users get a 5 GB limit per file, and Business API users have custom limits.
Can I convert FTS to FAX on my phone?
Absolutely. CocoConvert works in any modern browser — iOS Safari, Android Chrome, and all desktop browsers. No app required.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.