FTS Won't Open? Convert to QOI Instantly
Fast, instant FTS to QOI conversion. No signup required. Just drop your .fts file and get .qoi in seconds.
Batch Settings
Vous manipulez des fichiers FTS et cherchez une méthode efficace pour les convertir au format QOI ? Que vous soyez un professionnel de l'archivage, un chercheur ou un designer, la transition entre ces deux formats peut s'avérer nécessaire pour optimiser le stockage ou la diffusion de vos images. Le format FTS, souvent associé à des données astronomiques ou scientifiques brutes, est réputé pour sa richesse informationnelle, mais sa taille et sa compatibilité peuvent être des freins. À l'inverse, le QOI (Quite OK Image) se distingue par sa simplicité, sa rapidité de compression/décompression et sa légèreté, tout en offrant une qualité visuelle remarquable. Notre outil de conversion est conçu pour faciliter ce passage, garantissant l'intégrité de vos données tout en vous faisant bénéficier des avantages du QOI. Explorez comment cette conversion peut fluidifier vos flux de travail et améliorer la gestion de vos ressources numériques.
- Archivage de documents administratifs (ex: cadastre)
- Publication d'images scientifiques (ex: articles universitaires)
- Optimisation d'assets pour le web design (ex: maquettes)
En France et en Belgique, l'utilisation de formats légers comme QOI gagne du terrain dans le secteur public pour la diffusion de données cartographiques et archivistiques, souvent issues de formats FTS plus lourds. Au Québec, les institutions académiques s'intéressent également à QOI pour la publication rapide de résultats de recherche visuels.
About FTS to QOI 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 QOI. QOI 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 QOI 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 QOI 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 QOI
- 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 QOI output
Select .qoi 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 .qoi file. For batch jobs, download all at once as a zip.
What Happens When You Convert FTS to QOI
Your FTS file is decoded and re-encoded as QOI.
Your FTS file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in QOI format
The converted file is ready for download
Format Comparison
FTS
.fts file
| Extension | .fts |
| MIME Type | image/fits |
| Category | Image |
QOI
.qoi file
| Extension | .qoi |
| MIME Type | image/qoi |
| Category | Image |
Should You Convert FTS to QOI?
When to Convert
- ✓When you need a QOI 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 QOI — a more widely supported format — usually resolves this. QOI is a widely used file format.
Is it safe to convert FTS to QOI 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 QOI?
Converting FTS to QOI 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 QOI 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.