SLM File

What are SLM files and how to open them

Are you having problems opening a SLM file or are you simply curious about its contents? We're here to explain the properties of these files and provide you with software that can open or handle your SLM files.

What is a SLM file?

The .slm file extension can be linked to files being generated when the user utilizes the Gallery Lock. Gallery Lock manages and stores pictures and videos by hiding them to other users. Developed by Morrison Software, Gallery Lockis an app for Android that allows users to hide photos and other pictures on their smartphones.

The .slm file is an encrypted/ encoded file type that represents sthe altered version of the original "hidden" picture which is located in a hidden folder on the SD card in the following location: /mnt/sdcard/.gallery_lock/. Basically, 1024 bytes of data is added to the image to put it into hiding and the extension is renamed from .jpeg (for example) to .slm. It, of course, uses password protection to be able to unhide and open the file.

How to open SLM files

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

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

Last updated: September 9, 2023

Various apps that use files with this extension

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

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 SLM file formats, example files, or compatible programs. Please use the links below or email us at submit@file.org to discuss further.