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CAT Converter

Fast CAT conversion for Windows. reaConverter processes large batches reliably, without crashes or timeouts.

DownloadCAT ConverterConvert
CAT Files
Online
4.8

Over 25 years of experience

Your files never leave your PC

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How to Convert .cat Files in Bulk

1. Install reaConverter

Download reliable CAT conversion software to convert multiple .cat files and folders in one go.
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Install reaConverter

2. Select CAT Files

Select CATs from a folder or drag and drop them into reaConverter, then choose the desired output format.
reaConverter - Load CAT files

3. Start Conversion

Click Convert to start the bulk conversion of all selected CAT files. The process will begin right away.
reaConverter - Start CAT conversion

Step by step

See It in Action

For quick and effortless CAT file handling on your PC, reaConverter offers powerful conversion tools with batch processing. Best of all, it works entirely offline — ensuring your sensitive data never leaves your computer.

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Extra Tools

Do more with your files

Converting CAT files for use in a larger project? reaConverter offers many ways to process files, so you can customize them according to your requirements.

Our range of editing options includes auto-processing options such as auto-rotate, auto-crop, watermarking and more. Change Color Space, copy Metadata, set DPI, manage ICC Profile, control Bit Depth.

Conversion features
Image editing

User reviews

From those who tried it

Average User Rating:
Last updated on August 26, 2026
For agencies handling confidential data, reaConverter eliminates cloud-upload risks while delivering unmatched conversion reliability. Our team uses it both in-office and remotely with identical results.
Jamal Bailey
Jamal Bailey
Satisfied Customer
We receive artwork in all kinds of formats from clients. reaConverter takes care of converting them all to print-ready specs automatically using Watch Folders. It reduces errors, saves us time, and has improved our turnaround time with customers. Incredibly powerful software.
Michael D.
Michael D.
Print Shop Owner
Tried a few image tools before, but this one is by far the easiest. Drag, drop, convert — done in seconds. It saved me a ton of time when organizing my image folders.
Lisa K.
Lisa K.
Happy User
I run a small design agency, and reaConverter has saved me countless hours. The batch processing is lightning-fast, and the ability to convert hundreds of files into different formats at once is a game-changer. Highly recommend!
Mark T.
Mark T.
Satisfied Customer
reaConverter's automation tools have completely changed how I manage my projects. I often work with large batches of illustrations and used to spend hours converting and organizing them. Now, with Watch Folders, I just set the rules once and everything is handled automatically, exactly how I need it. This is pro-level automation made simple.
Chloe M.
Chloe M.
Freelance Illustrator
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

Questions & Answers

CAT files: Frequently Asked Questions

What are CAT files?

The CAT file format is associated with Photomatix, a program specialized in merging multiple photographs for creating high-dynamic-range images (HDRI) and the turning them into low-dynamic-range (LDR). The CAT extension is considered rare and can be opened with a limited number of image viewers.

Can reaConverter open CAT files?

reaConverter fully supports the CAT file format – open, edit, and export CAT files to any other popular file format with ease.

How do I change CAT to another format?

reaConverter is a user-friendly tool for converting CAT files. Once installed on your computer, it allows you to convert all your .cat files at once with just a few clicks. You can even convert CAT files directly from Windows Explorer using the right-click menu — fast and convenient.

Can I convert CAT online?

If you only want to convert a few CAT files, you are welcome to try our free online CAT converter.

How can I turn CAT files on my computer to another format?

The best way to convert CAT files on your PC is to get 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 CAT.

How can I automate CAT files conversion?

reaConverter supports all the essential automation features, such as right-click сonversion and Watch Folders, for the most efficient automated file conversion in any software of its kind.

Can I convert CAT files using scripts or the command-line interface?

reaConverter provides full access to all its features from the Windows command-line shell, including the command-line cat converter.

What else can I do with reaConverter?

Convert GIS filesConvert Gerber filesChange color spaceChange format settingsCopy metadata (EXIF, IPTC)

What formats can I convert a CAT file to?
cat → aicat → apngcat → avifcat → bmpcat → bpgcat → calcat → cg4cat → cgmcat → cincat → citcat → dcmcat → dcxcat → ddscat → dgncat → discat → drwcat → dwfcat → dwgcat → dxfcat → emfcat → epicat → epscat → faxcat → fitscat → flifcat → gbrcat → gifcat → glbcat → gltfcat → hpgcat → hrucat → icocat → iffcat → igescat → igscat → jp2cat → jpegcat → jpgcat → jxlcat → jxrcat → ktx2cat → mifcat → mtvcat → objcat → pclcat → pctcat → pcxcat → pdfcat → pgmcat → piccat → pltcat → pngcat → ppmcat → prccat → pscat → psdcat → qoicat → qrtcat → radcat → rlacat → sgicat → shpcat → stepcat → stlcat → stpcat → svgcat → svgzcat → tgacat → tifcat → tiffcat → u3dcat → webpcat → webpllcat → wmfcat → wmzcat → wpgcat → wrlcat → x3dcat → xbmcat → xpm

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Beyond CAT conversion

Convert .cat files in batches of any size, with editing and processing applied along the way. The same tool also handles 800+ other formats, including CAD, medical imaging, and GIS.

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Free trial · Windows 10/11 · v8.0.260 · Files never leave your computer

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