FTS to AVIF — Format Comparison & Online Converter
Fast, instant FTS to AVIF conversion. No signup required. Just drop your .fts file and get .avif in seconds.
Batch Settings
About FTS to AVIF Conversion
FTS and AVIF (introduced 2019) are both image formats, but they differ in important ways. FTS is a widely used file format. AVIF is the newest image format based on AV1 video codec, delivering exceptional compression — up to 50% smaller than JPEG at the same quality.
When you convert FTS to AVIF, the goal is to convert between formats quickly. Converting FTS to AVIF maintains high quality with CocoConvert's optimised encoder settings. Understanding these technical differences helps you choose the right format for your workflow.
Your FTS file is decoded and re-encoded as AVIF. The conversion involves 4 steps: (1) your fts file is uploaded and validated, (2) the file is decoded (parsed into its raw data), (3) the data is re-encoded in avif format, (4) the converted file is ready for download.
CocoConvert's converter handles the entire pipeline server-side using FFmpeg, Sharp, and qpdf — battle-tested libraries used by streaming platforms and enterprise tools. Files are encrypted in transit and deleted within 24 hours.
This conversion is ideal when you When you need a AVIF file. For the opposite direction, CocoConvert also supports AVIF to FTS conversion.
How to Convert FTS to AVIF
- 1
Upload .fts file
Select your FTS file by dragging it to the upload zone or using the file picker. Batch upload is available for multiple files.
- 2
Choose .avif
Set AVIF as the output format. The converter uses optimal settings based on the FTS→AVIF conversion profile.
- 3
Convert
The server-side engine decodes your FTS file and re-encodes it as AVIF. Processing time depends on file size and complexity.
- 4
Download result
Grab your converted .avif file. Multiple output files can be downloaded together.
What Happens When You Convert FTS to AVIF
Your FTS file is decoded and re-encoded as AVIF.
Your FTS file is uploaded and validated
The file is decoded (parsed into its raw data)
The data is re-encoded in AVIF format
The converted file is ready for download
Format Comparison
FTS
.fts file
| Extension | .fts |
| MIME Type | image/fits |
| Category | Image |
AVIF
.avif file
| Extension | .avif |
| MIME Type | image/avif |
| Category | Image |
Should You Convert FTS to AVIF?
When to Convert
- ✓When you need a AVIF file
Frequently Asked Questions
What is the difference between FTS and AVIF?
FTS is a widely used file format. AVIF is the newest image format based on AV1 video codec, delivering exceptional compression — up to 50% smaller than JPEG at the same quality.
Does FTS to AVIF conversion affect quality?
Converting FTS to AVIF maintains high quality with CocoConvert's optimised encoder settings.
Which format has better compression, FTS or AVIF?
FTS is a common image format. AVIF uses both compression. The better choice depends on whether you prioritize file size or quality.
How long does FTS to AVIF conversion take?
Most conversions finish in seconds. Larger files or complex image content may take 10–30 seconds. CocoConvert processes files in parallel for batch jobs.
Is FTS or AVIF better for long-term storage?
Both formats use lossy compression, so consider keeping your original source file for long-term storage.
Versions are pinned in our worker Dockerfile and re-built via CI on every change.