Convert FTS to AVIF

Convert FTS to AVIF without uploading files anywhere. reaConverter works entirely on your PC — fast, private, and handles thousands of files at once.

Looking to change FTS files to AVIF format? reaConverter makes it simple — add your files, select output format, and convert entire folders in one click. Runs entirely on your hardware for maximum speed — no waiting for uploads or server queues.

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FTS to AVIF
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How to Convert Multiple FTS Images to AVIF?

1. Download and Install reaConverter

First, grab reaConverter from the download button below. Installation is fast, and the software runs offline — no account or signup needed. Apply image edits like resize, crop, or color adjustment while converting.

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Install reaConverter

2. Load your FTS files

Start reaConverter and add your .fts files. The software processes everything locally, so your files never leave your computer.

Use drag-and-drop, folder browser, or right-click conversion from Explorer.

Load your FTS files into reaConverter

3. Select AVIF as output format

Select AVIF from 700+ supported output formats. Choose your destination folder and adjust settings to match your needs.

Select AVIF as output format

4. Start FTS to AVIF conversion

Click Convert to start the batch. reaConverter processes files quickly and shows you the status of each one.

Start Conversion

Once done, reaConverter shows a summary. Click 'Show converted files' to jump straight to your AVIF output.

FTS to AVIF Converter

reaConverter offers the fastest, simplest solution for converting your FTS files into AVIF in seconds - all images processed on your PC for maximum privacy and speed.

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Do more with your images

Converting FTS images for use in a larger project? With reaConverter, you can convert, edit, and enhance your images in one streamlined process.

Our range of editing options includes such image processing actions as Resize, Rotate, Crop, Color Replace, Watermarks and more. Adjust actions include RGB, HLS, HSV, Brightness and Contrast. Auto-processing options are also available, such as auto-rotate and auto-crop.

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User Reviews

Average User Rating:
Last updated on January 25, 2026
"Twitch thumbnails keep saving as AVIF and my editing software freaks out. reaConverter swaps them to JPEG instantly. Now I can actually post my ‘🔥HOT TAKES🔥’ without crying over file errors."
Amy Li
Amy Li
Content Creator
"Google Photos auto-saved my pics as AVIF files that won’t open anywhere. reaConverter rescued 3 years of memories AND kept the quality. Take that, ‘innovation’!"
Derek Snyder
Derek Snyder
Satisfied Customer
"The step-by-step video makes conversion foolproof. I'd recommend this to my grandma - it's that well-explained!"
DeShawn M. Thompson
DeShawn M. Thompson
Happy User
"I'm really impressed with this software - it converts files between formats incredibly fast!"
Lin Zhang
Lin Zhang
Happy User
"I firmly believe working with JPEG — the universal format supported by all devices and apps—is the wisest choice. reaConverter handles these conversions flawlessly."
Ava Thomas
Ava Thomas
Happy User
"An excellent program! I use it regularly in my work - it supports nearly every file format imaginable. The interface is intuitive and runs flawlessly every time."
Roger Cook
Roger Cook
Happy User

FTS to AVIF Conversion: FAQ

What are FTS files?

FTS (Flexible Image Transport System) is an image format used particularly for storing and transferring data related to astronomy, used by organizations such as NASA. Just like similar extensions FITS and FIT, FTS images can store not only image data but also metadata connected to the files' origin and structure. The FTS format is supported by a limited number of image viewers and can be converted to more widely accessible extensions, such as JPEG or PNG.

What are AVIF files?

AVIF is a new image format launched at the end of 2020. AV1 Image File Format was developed by the Alliance for Open Media in collaboration with Netflix, Google and Cisco. This format was created to be an open-sourced and royalty-free image format with a super-compression efficiency. Multiple graphics compression tests show that the .avif format outperforms the JPEG, PNG and WebP image formats for its image quality to compressed file size ratio.

Can reaConverter convert FTS to AVIF?

Yes! reaConverter instantly converts .fts to .avif with perfect quality preservation. With its batch processing feature, you can convert multiple files at once in just a few clicks. You can even convert images directly from Windows Explorer using the right-click menu — fast and convenient.

What is reaConverter used for?

reaConverter is a software program used for converting images and other types of files from one format to another. It supports a wide range of file formats and allows users to convert multiple files at once, making it a valuable tool for graphic designers, photographers, and other professionals who work with digital images. reaConverter also includes features for resizing, cropping, and editing images, along with batch processing capabilities that help automate repetitive tasks.

Can I convert FTS to AVIF online?

If you only need to convert a few FTS files to AVIF format, feel free to try our free online free online FTS to AVIF converter — perfect for small batches with no installation needed!

How can I turn FTS files into AVIF on my computer?

The best way to change FTSs to AVIFs on your PC is to install a quality piece of software, such as reaConverter. This software is extremely efficient in managing a wide range of batch files conversions, including conversion from FTS to AVIF.

How can I automate FTS to AVIF files conversion?

reaConverter supports all the most useful automation features such as right-click сonversion and Watch Folders for the most efficient automated files conversion in any software of this type.

Is there a way to convert FTS files to AVIF using the command prompt?

reaConverter provides full access to all its features via Windows command line, including a high-performance command-line fts to avif converter for batch processing.

What else can I do with reaConverter?

Convert CAD formatsSet picture bit depthSet file dateConvert GIS filesChange format settings

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