VSI Converter

Use our fast and easy VSI image converter. Using reaConverter you will be able to convert all your VSI files as once.

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How to Convert .vsi Images in Bulk

1. Install reaConverter

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

2. Select VSI Files

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

3. Start Conversion

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

Convert VSI on your PC

For quick and effortless VSI 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 images

Converting VSI images for use in a workflow? Touch up, transform, apply editing and effects to your images during conversion.

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.

Image editing tools

User Reviews

Average User Rating:
Last updated on February 27, 2025
"I needed to convert my pathology slides (VSI format) to standard images for a research paper. reaConverter handled this smoothly - it's much faster than the default Olympus software and maintains decent image quality. The batch processing saved me hours of work."
Dr. Emily Zhang
Clinical Pathologist
"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.
Print Shop Owner
"Enable shell integration for lightning-fast file conversions directly from Windows Explorer."
R. Lewis
Happy User
"I use the online converter — it’s quick and hassle-free!"
Jian Wong
Happy Online User
"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
"An ultra-fast solution for minimizing file sizes. The entire conversion process takes just 3 minutes!"
Logan B.
Satisfied Customer

VSI images: Frequently Asked Questions

What are VSI files?

VSI stands for Virtual Slide Image, a proprietary file format developed by Olympus for storing high-resolution digital pathology slides. VSI files are generated by Olympus virtual slide scanners and used primarily in medical imaging, histology, and research applications where detailed examination of microscope slide scans is required. A VSI file typically contains a large, multi-layered image that allows for zooming and panning, similar to how a microscope would be used to view tissue samples at varying magnifications.

Can reaConverter open VSI files?

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

How do I change VSI to another format?

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

Why choose offline conversion with reaConverter?

Keep your sensitive data 100% private with offline processing that never exposes files to cloud risks. Our software meets strict compliance standards (GDPR, HIPAA, CCPA) while handling confidential documents for legal, healthcare and financial sectors.

Can I convert VSI online?

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

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

The best way to convert VSI images 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 VSI.

How can I automate VSI 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 VSI 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 vsi converter.

What else can I do with reaConverter?

Convert Gerber filesCrop imagesChange format settingsChange picture DPIConvert CAD formats

What formats can I convert a VSI 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 VSI file converter that saves you time and effort by converting multiple .vsi files into different formats.
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