How to open NSIS files

Did your computer fail to open a NSIS file? We explain what NSIS files are and recommend software that we know can open or convert your NSIS files.

What is a NSIS file?

The NSIS file extension indicates to your device which app can open the file. However, different programs may use the NSIS file type for different types of data.

While we do not yet describe the NSIS file format and its common uses, we do know which programs are known to open these files, as we receive dozens of suggestions from users like yourself every day about specific file types and which programs they use to open them.

We are continually working on adding more file type descriptions to the site, so if you have information about NSIS files that you think will help others, please use the Update Info link below to submit it to us - we'd love to hear from you!

Various NSIS openers

These apps are known to open certain types of NSIS files. Since many different programs may use NSIS files for different purposes, you may need to try a few of the apps to open your specific NSIS file.

FreeArcFreeArcUser submitted
Hamster Lite ArchiverHamster Lite ArchiverUser submitted
Hamster Free ArchiverHamster Free ArchiverUser submitted
Hamster Free ZIP ArchiverHamster Free ZIP ArchiverUser submitted
Free Zip OpenerFree Zip OpenerUser submitted
ExtractNowExtractNowUser submitted
Free Zip ViewerFree Zip ViewerUser submitted
7-Zip7-ZipUser submitted
Free Ultimate File OpenerFree Ultimate File OpenerUser submitted

Try a universal file viewer

Try a universal file viewer like Free File Viewer. It can open over 200 different types of files - and most likely yours too. Download Free File Viewer here.

We have not verified any programs that we know for certain can work with NSIS-files on Mac. If you know one, please use the Suggest link below and tell us about it!
We have not verified any online services that we know for certain can work with NSIS-files. If you know one, please use the Suggest link below and tell us about it!