Convert STX to EPI

Bulk STX to EPI conversion with consistent results. Set it up once, process thousands of files with the same quality every time.

Looking to change STX files to EPI 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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STX to EPI
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How to Convert Multiple STX Files to EPI?

1. Download and Install reaConverter

reaConverter is a standalone Windows app — download, install, and start converting STX files in under two minutes.

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Install reaConverter

2. Load your STX files

Start reaConverter and add your .stx 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 STX files into reaConverter

3. Select EPI as output format

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

Select EPI as output format

4. Start STX to EPI 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 EPI output.

STX to EPI Converter

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

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Do more with your files

Converting STX files for use in a workflow? 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

Average User Rating:
Last updated on January 25, 2026
"Finally an app that actually opens my weird files! Saves me from format frustration daily."
Kyle Brooks
Kyle Brooks
Happy User
"This converter delivers exceptionally quick format conversions with reliable results every time."
Brian White
Brian White
Happy User
"Security was our top concern when evaluating file conversion tools. reaConverter’s offline mode and role-based access controls let us lock it down for sensitive environments. No unexpected network calls or bloat — just clean, fast conversions. Even passed our pen-testing scans without a hitch."
Marcus White
Marcus White
Healthcare IT
"5/5⭐ Finally! Does what it promises - converts AND tweaks images without complicated menus. Perfect for quick jobs."
J. Mitchell
J. Mitchell
Satisfied Customer
"reaConverter is pure gold! Rock-solid performance with zero crashes. No internet needed—perfect for travel or low-connectivity work. The ultimate offline alternative to sketchy web converters. Plus, the desktop version keeps sensitive files secure since nothing ever gets uploaded to the cloud."
Malik T. Martin
Malik T. Martin
Satisfied Customer
"I was skeptical at first, but reaConverter exceeded my expectations. The interface is intuitive, and the advanced settings let me tweak outputs perfectly. Plus, the customer support is fantastic!"
Sarah Lane
Sarah Lane
Satisfied Customer

STX to EPI Conversion: FAQ

What are STX files?

STX files represent RAW images created with SBIG CCD cameras. They are part of a group of formats known as Santa Barbara Instruments Astronomical Images, also including ST5, ST6, ST7 and ST8. Apart from astronomy, SBIG cameras can also be used in medical imaging, color photometry and a few other scientific and industrial sectors. All formats in the group are considered specialized and rare, so opening STX files might be possible only after conversion to more widely available extensions.

What are EPI files?

EPI (Encapsulated Interchange Script) is an interchange format associated with Adobe Illustrator and represents a vector file used by graphic designers to create and edit drawings. EPI files can contain maps, logos, page layouts or several other types of drawings including text and graphics. Due to their vector format, EPI files can be incompatible with most popular image viewers.

Can reaConverter convert STX to EPI?

Yes! reaConverter instantly converts .stx to .epi 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.

Can I convert STX to EPI online?

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

How can I turn STX files into EPI on my computer?

The best way to change STXs to EPIs 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 STX to EPI.

How can I automate STX to EPI 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 STX files to EPI using the command prompt?

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

What else can I do with reaConverter?

Convert vector filesConvert picture color spaceCopy IPTC dataConvert GIS filesChange file date

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