Convert FTS to FLIF

FTS to FLIF conversion that keeps your files private. reaConverter runs offline on your computer with full batch processing support.

Online converters too slow for your FTS files? reaConverter works locally and handles unlimited batches. All processing runs locally on your PC, so your files stay private and secure.

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FTS to FLIF
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How to Convert Multiple FTS Images to FLIF?

1. Download and Install reaConverter

reaConverter installs quickly on any Windows PC. No dependencies, no bloatware — just a clean setup that's ready to use immediately. Built-in editing tools let you resize, crop, or watermark as you convert.

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Install reaConverter

2. Load your FTS files

Add FTS files to reaConverter. One file or a thousand, the process is the same. Everything runs locally on your machine.

You can drag-and-drop files, browse to a folder, or add entire directory trees including subfolders.

Load your FTS files into reaConverter

3. Select FLIF as output format

Select FLIF from the output format list and set your destination folder. You can also adjust quality and compression settings.

Select FLIF as output format

4. Start FTS to FLIF conversion

Click the Convert button to start. reaConverter will process all your files with the settings you selected.

Start Conversion

When finished, your new .flif files will be waiting in the destination folder.

FTS to FLIF Converter

reaConverter offers the fastest, simplest solution for converting your FTS files into FLIF 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 23, 2026
"An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!"
Logan B.
Logan B.
Satisfied Customer
"I use the online converter — it’s quick and hassle-free!"
Jian Wong
Jian Wong
Happy Online User
"Working in a print studio means constantly juggling obscure file formats. I used to waste hours Googling converters or installing random software — until reaConverter became my Swiss Army knife. Install it once, and you're set forever. No internet? No problem!"
Helen Evans
Helen Evans
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"Your solution was buried deeper in search results than it should be. After struggling with unclear alternatives, I found your guides — finally, instructions that made sense for a first-time user like me. Excellent work!"
Richard E. Miller
Richard E. Miller
Satisfied Customer
"Converts files in seconds! Finally a tool that's both fast and simple to use."
Wei Chen
Wei Chen
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"I'd been searching for reliable conversion software forever — reaConverter has everything I need! After installing and watching the tutorial, I had my files converted to the perfect format in minutes. Flawless experience!"
Sanjay Mehta
Sanjay Mehta
Satisfied Customer

FTS to FLIF 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 FLIF files?

FLIF (Free Lossless Image Format) is a royalty-free format launched at the end of 2015 as "work in progress" with the aim of offering a better alternative for storing lossless images than the existing PNG, WebP, BPG, JPEG2000 and JPEG XR. FLIF provides similar image quality as the other extensions, but in a file size than can be up to 74% smaller. The new format uses a form of the Adam7 algorithm for compressing images, offering progressive interlacing that allows users to obtain a reasonable encoding of an image even from a partial download.

Can reaConverter convert FTS to FLIF?

Yes! reaConverter instantly converts .fts to .flif 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 FLIF online?

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

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

The best way to change FTSs to FLIFs 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 FLIF.

How can I automate FTS to FLIF 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 FLIF using the command prompt?

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

What else can I do with reaConverter?

Convert DICOM filesResize pictureConvert Gerber filesCrop picturesChange format settings

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