STS Converter

Our highly efficient software makes it easy to convert millions of STS files and folders in a single operation.

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STS Files
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How to Convert .sts Files in Bulk

1. Install reaConverter

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

2. Select STS Files

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

3. Start Conversion

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

Convert STS on your PC

For quick and effortless STS 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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Do more with your files

Converting STS 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

User Reviews

Average User Rating:
Last updated on February 26, 2025
"Before reaConverter, I was the ‘File Conversion Guy’ at work — a title I never asked for and definitely didn’t want. Then I found the Watch Folders feature, and suddenly I was free! Now, files convert themselves while I sip coffee and pretend I'm still working hard. My coworkers think I'm a wizard. Thanks reaConverter, for saving my sanity and boosting my fake productivity!"
Ben H.
Overwhelmed Office Hero
"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
Satisfied Customer
"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
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
Satisfied Customer
"I'm really impressed with this software - it converts files between formats incredibly fast!"
Lin Zhang
Happy User
"So simple! I just needed to convert a couple of files to another format, and for such a straightforward task, the online converter worked perfectly — delivering the files I needed in no time. Excellent service!"
Kenneth D. Carter
Satisfied Customer

STS files: Frequently Asked Questions

What are STS files?

The STS file format is used to represent the bottom solder mask of a PCB design in two-dimensional vector form. This file type is typically created and processed using Eagle software and is part of the Gerber family of extensions, which are widely used in the PCB industry. Gerber files provide information about different aspects of electronic boards, such as copper layers, electrical connections, solder masks, and drilling or milling data. Other formats that are similar to STS include SOL, STC, and PLC.

Can reaConverter open STS files?

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

How do I change STS to another format?

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

Can I convert STS online?

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

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

The best way to convert STS 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 STS.

How can I automate STS 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 STS 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 sts converter.

What else can I do with reaConverter?

Convert DICOM imagesResize pictureConvert CAD formatsChange image bit depthConvert RAW formats

What formats can I convert a STS file to?
ai  apng  avif  bmp  bpg  cal  cg4  cgm  cin  dcx  dds  dgn  dis  drw  dwf  dwg  dxf  emf  epi  eps  fax  fits  flif  gbr  gif  glb  gltf  hpg  hru  ico  iff  jp2  jpeg  jpg  jxl  jxr  mif  mtv  pcl  pct  pcx  pdf  pgm  pic  plt  png  ppm  prc  ps  psd  qoi  qrt  rad  riff  rla  sgi  shp  step  stl  stp  svg  svgz  tga  tif  tiff  webp  webpll  wmf  wmz  wpg  wrl  x3d  xbm  xpm 

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Explore our efficient STS file converter that saves you time and effort by converting multiple .sts files into different formats.
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