Windows · Free download · Encryption Security

GullLocker1.2.0

GullLocker : Encrypt sensitive files and add them to a password-protected list that can be accessed easily whenever you need to open or edit the, with this simple, open-source utility

Operating system
Windows 10/11
File size
877 KB
License
GPLv3
Last updated
May 1, 2026

111 downloads·547 page views

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Overview

What is GullLocker?

GullLocker : Encrypt sensitive files and add them to a password-protected list that can be accessed easily whenever you need to open or edit the, with this simple, open-source utility

In depth

A closer look at GullLocker

It often seems that there are countless ways for others to gain access to your private files, even if you never let anyone else use your computer. Fortunately, there are also plenty of applications that can help you secure them.One of the options at your disposal is GullLocker, a lightweight, open-source program that uses the BlowFish and AES (Rijndael) algorithms to protect your data. Once encrypted, files are stored in an easily-accessible list.

Encrypt files and find them easily

First and foremost, you need to set up a master password that will be required whenever you want to access your file list. You can only create one list at a time, but every file you encrypt can be added to it.However, it seems that the current file list can be overwritten by anyone, at any time; users are not required to provide the password when replacing it with a new list, which seems to be a pretty big oversight.

Secure important files open them without decrypting

After processing a document, a new file will be created with the GLF extension. It is not added to the list automatically, so you need to do this yourself, either by browsing to its location or using drag and drop actions.Once an encrypted file has been added, you can open it at any time using the default application. You don’t need to provide a password, and the file will only be stored in a temporary location until you decide to close it again.Of course, you can also decrypt these files, in which case you will have to provide the password used to lock them.

Straightforward encryption utility that makes it easy to open and edit files

GullLocker is a pretty useful piece of software, although it could be improved in certain respects. It is an open-source, multi-platform application that enables you to encrypt your files and open them for editing by simply providing a master passworrd.

Requirements

System requirements

Windows 10 64 bit / Windows 10 / Windows 8 64 bit / Windows 8 / Windows 7 64 bit / Windows 7 / Windows Vista 64 bit / Windows Vista / Windows XP 64 bit / Windows XP

Verdict

Should you download GullLocker?

GullLocker runs on Windows 10/11 and is available under the GPLv3 license — the installer is 877 KB. We’ve catalogued it under Encryption Security.

Verified clean. Every GullLocker build on SoftLookup is scanned for viruses, spyware, adware, trojans and backdoors. We re-test on every update.
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At a glance

GullLocker specifications

Publisher
Massimo Nardello
Last updated
May 1, 2026
Requirements
Windows 10 64 bit / Windows 10 / Windows 8 64 bit / Windows 8 / Windows 7 64 bit / Windows 7 / Windows Vista 64 bit / Windows Vista / Windows XP 64 bit / Windows XP
License
GPLv3
Operating system
Windows 10/11
File size
877 KB
Price
Free
Page views
547

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