JLS File

What are JLS files and how to open them

Are you having problems opening a JLS file or just wondering what they contain? We explain what these files are used for and show you software that we know can open or otherwise handle your files.

What is a JLS file?

A .JLS file is a JPEG-LS Bitmap file.

We have not yet analyzed in detail what these files contain and what they are used for. We're working on it.

How to open JLS files

Important: Different programs may use files with the JLS file extension for different purposes, so unless you are sure which format your JLS file is, you may need to try a few different programs.

While we have not verified the apps ourselves yet, our users have suggested five different JLS openers which you will find listed below.

Last updated: January 17, 2023

Various apps that use files with this extension

These apps are known to open certain types of JLS files. Remember, different programs may use JLS files for different purposes, so you may need to try out a few of them to be able to open your specific file.

IrfanViewIrfanViewVerified
XnViewXnViewUser submitted
SView5SView5User submitted
IrfanView for Vista, Win7, Win8, Win10IrfanView for Vista, Win7, Win8, Win10User submitted
IrfanView for Win7, Win8, Win10, Win11IrfanView for Win7, Win8, Win10, Win11User submitted

Help us help others

File.org helps thousands of users every day, and we would love to hear from you if you have additional information about JLS file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.