Convert STX to WEBPLL

Fast STX to WEBPLL conversion for Windows. reaConverter supports 700+ formats with batch processing and built-in editing tools.

Tired of converting STX files one at a time? reaConverter processes entire folders to WEBPLL automatically. Handles large batches reliably without crashes or timeouts.

Download
reaConverter
Convert
STX to WEBPLL
Online
Convert

How to Convert Multiple STX Files to WEBPLL?

1. Download and Install reaConverter

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

reaConverter logo
Install reaConverter

2. Load your STX files

Add STX 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 STX files into reaConverter

3. Select WEBPLL as output format

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

Select WEBPLL as output format

4. Start STX to WEBPLL conversion

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

Start Conversion

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

STX to WEBPLL Converter

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

Download Free Trial

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
"An efficient all-in-one solution for image conversion and light editing, designed for maximum user-friendliness."
Elena Anderson
Elena Anderson
Happy User
"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
R. Lewis
R. Lewis
Happy User
"After 200+ conversions on my budget laptop (i3-1115G4/4GB RAM/Win11), reaConverter outperforms heavyweight tools. Zero crashes, low CPU usage during batch processing, and no internet dependency - exactly what professionals need."
Walter Morgan
Walter Morgan
Satisfied Customer
"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
"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
"Our volunteer team uses reaConverter to prepare images for fundraising campaigns. The learning curve was minimal, and the results are professional-grade. The customer support team even helped us customize a workflow — fantastic service!"
Jason P. Bailey
Jason P. Bailey
Non-Profit Coordinator

STX to WEBPLL 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 WEBPLL files?

WebPLL is the lossless version of WebP, an image format released by Google in 2010 with the declared objective of improving browsing times. WebPLL images are aimed to offer the same quality as other standard image formats used online, such as JPEG and PNG, but in a smaller size. Although received with enthusiasm, the two Google formats are still not compatible with some browsers and viewers, and have features that need to be developed in the future for wider accessibility.

Can reaConverter convert STX to WEBPLL?

Yes! reaConverter instantly converts .stx to .webpll 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 WEBPLL online?

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

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

The best way to change STXs to WEBPLLs 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 WEBPLL.

How can I automate STX to WEBPLL 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 WEBPLL using the command prompt?

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

What else can I do with reaConverter?

Convert GIS filesChange file dateConvert vector imagesConvert picture color spaceConvert RAW photo formats

Find out more

Get advanced software for file conversion, processing, and editing, giving you complete, precise control over your work.
Download
reaConverter
Buy Now
reaConverter software