Software Alternatives, Accelerators & Startups

Qualys VS Dev-offcode Windows Screen Locker

Compare Qualys VS Dev-offcode Windows Screen Locker and see what are their differences

Qualys logo Qualys

Qualys helps your business automate the full spectrum of auditing, compliance and protection of your IT systems and web applications.

Dev-offcode Windows Screen Locker logo Dev-offcode Windows Screen Locker

Premium Windows screen lock builder with advanced features - Save/Load configs, folder lock, website blocking, scheduled auto-start, UI themes, AES-256-GCM encryption. Professional screen locker for Windows.
  • Qualys Landing page
    Landing page //
    2023-09-23
  • Dev-offcode Windows Screen Locker Screen lock page
    Screen lock page //
    2025-11-16
  • Dev-offcode Windows Screen Locker Lock files / Websites / Folders
    Lock files / Websites / Folders //
    2025-11-16
  • Dev-offcode Windows Screen Locker Select page
    Select page //
    2025-11-16
  • Dev-offcode Windows Screen Locker Builder settings page
    Builder settings page //
    2025-11-16
  • Dev-offcode Windows Screen Locker Configs page
    Configs page //
    2025-11-16
  • Dev-offcode Windows Screen Locker Change builder colors
    Change builder colors //
    2025-11-16
  • Dev-offcode Windows Screen Locker Lock screen
    Lock screen //
    2025-11-16

Windows Screen Lock Builder Premium โ€” the most advanced screen lock for Windows with professional features for complete control over your Windows security. This premium screen locker for Windows creates portable executables with advanced capabilities including folder protection, website blocking, program locking, and scheduled automation. If you need a powerful screen lock Windows solution, this is the professional-grade tool you've been looking for.

Perfect for families who want to control and limit computer usage time, businesses requiring advanced security, or IT professionals managing multiple workstations. Whether you need to lock Windows screen for parental control, office security, or public terminal management, this premium edition delivers enterprise-level features.

The built-in blacklist protection (148+ words, 38 regex patterns) ensures that malicious ransomware-style messages cannot be used, making it a safe and responsible tool for legitimate screen locking purposes.

Premium Edition extends the core functionality with advanced features: save and load your configurations for easy deployment, lock folders and programs, block specific websites, schedule automatic startup, customize the UI with themes, protect the builder itself with a password, remove branding, and receive all future updates.

This is a very old project โ€” I originally built the first version back in 2015. I've decided to revive it and completely modernize it.

Qualys

Website
qualys.com
$ Details
-
Platforms
-
Release Date
-
Startup details
Country
United States

Dev-offcode Windows Screen Locker

$ Details
freemium $45.0 / One-off (Premium)
Platforms
Windows
Release Date
2025 November
Startup details
Country
Finland
State
FIN
Founder(s)
OffCrypt

Qualys features and specs

  • Comprehensive Security
    Qualys offers a wide array of tools and functionalities, including vulnerability management, policy compliance, and web application scanning, providing comprehensive security coverage.
  • Cloud-based Platform
    Being a cloud-based solution, Qualys is easily accessible from any location, reducing the need for heavy, on-premise infrastructure.
  • Automated Scanning
    Automated, continuous scanning helps keep security measures up to date without requiring constant manual intervention.
  • Detailed Reporting
    Qualys provides detailed and customizable reports that help in understanding the security posture and in complying with regulatory requirements.
  • Integration Capabilities
    The platform easily integrates with other tools and systems, allowing for a streamlined workflow and enhanced security ecosystem.
  • Scalability
    Qualys scales easily from small businesses to large enterprises, providing flexible solutions that can grow with the organization.

Possible disadvantages of Qualys

  • Cost
    While offering comprehensive features, the cost can be high, which may not be feasible for smaller organizations or those with limited budgets.
  • Complex Setup and Configuration
    Initial setup and configuration can be complex and time-consuming, often requiring expert knowledge to get the most out of the platform.
  • Steep Learning Curve
    Given its extensive feature set, the platform may have a steep learning curve for new users, necessitating substantial training and familiarization.
  • Performance Impact
    In some instances, on-premise scanners and agents can cause performance degradation of the systems they are monitoring.
  • Support Response Time
    Some users have reported slower response times from Qualys support, which can be an issue during critical situations.
  • Limited Customizations
    While Qualys provides many features, some users have found limitations in the ability to customize certain tools and workflows to fit specific needs.

Dev-offcode Windows Screen Locker features and specs

  • Folder Locker
    Lock folders with encrypted password
  • Screen Locker
    Lock screen with encrypted password
  • Program locker
    Lock any program with encrypted password
  • Customizable lock message
    Custom lock screen text
  • Ransomware prevention
    The built-in blacklist protection (148+ words, 38 regex patterns) ensures that malicious ransomware-style messages cannot be used, making it a safe and responsible tool for legitimate screen locking purposes.
  • Disable Task Manager
    You can block task manager
  • Block Command Prompt
    CMD blocked
  • Auto-startup capability
    Software starting at windows startup
  • Scheduled Auto-close
    Set date to close lock screen
  • Scheduled Auto-start
    Set date to start lock screen
  • Config System - Save/Load
    You can save / load builder configs

Analysis of Qualys

Overall verdict

  • Qualys is generally regarded as a highly effective and reputable solution in the cybersecurity industry. Its continuous updates and innovative features ensure that it remains a top choice for businesses seeking robust security and compliance tools.

Why this product is good

  • Qualys is considered good due to its comprehensive suite of cloud-based security and compliance solutions. It offers services such as vulnerability management, threat protection, and compliance monitoring, which are essential for businesses looking to secure their IT infrastructure. Its platform is known for being reliable, scalable, and user-friendly, making it suitable for organizations of varying sizes.

Recommended for

    Qualys is recommended for businesses of all sizes that need a cloud-based, scalable, and comprehensive security solution. It's particularly beneficial for organizations that require vulnerability management, compliance monitoring, and those operating in highly regulated industries where security is paramount.

Analysis of Dev-offcode Windows Screen Locker

Overall verdict

  • I don't have verified, specific information about 'Dev-offcode Windows Screen Locker' from dev-offcode.com, including user reviews, security audits, or company reputation. Without concrete data on its performance, safety, and support, I can't confidently confirm whether it's good or not. It appears to be a niche or lesser-known utility, so I'd recommend researching independent reviews, checking for digital signatures, and verifying the developer's credibility before installing it, since screen lockers require system-level trust and could pose security risks if not from a reputable source.

Why this product is good

  • Screen locker tools can be useful for privacy and quick workstation security if they come from a trusted developer
  • Lightweight, single-purpose tools like this may offer simplicity compared to bulky security suites
  • If well-coded, it could provide quick lock/unlock functionality tailored to specific workflows

Recommended for

  • Users who have already vetted the developer and confirmed the software's safety through trusted reviews or malware scans
  • Technically inclined users comfortable testing niche software in a sandboxed or non-critical environment first
  • Those specifically seeking a minimal, single-function screen lock utility rather than a full security suite

Qualys videos

Qualys Review by SecNetlab

More videos:

  • Review - Introduction to QualysGuard Vulnerability Management
  • Review - Qualys Security Assessment Questionnaire

Dev-offcode Windows Screen Locker videos

Screen lock showcase

More videos:

  • Demo - Folder lock showcase
  • Demo - Screen lock builder Premium Website lock showcase

Category Popularity

0-100% (relative to Qualys and Dev-offcode Windows Screen Locker)
Security
98 98%
2% 2
ScreenLock
0 0%
100% 100
Monitoring Tools
100 100%
0% 0
Web Application Security
100 100%
0% 0

Questions & Answers

As answered by people managing Qualys and Dev-offcode Windows Screen Locker.

Who are some of the biggest customers of your product?

Dev-offcode Windows Screen Locker's answer:

There is no customers yet. Beacuse software launched 14/11/2025

Which are the primary technologies used for building your product?

Dev-offcode Windows Screen Locker's answer:

Tehcnologies: C#

What's the story behind your product?

Dev-offcode Windows Screen Locker's answer:

This is a very old project โ€” I originally built the first version back in 2015 ( VBnet). I've decided to revive it and completely modernize it.

Why should a person choose your product over its competitors?

Dev-offcode Windows Screen Locker's answer:

Fully Customizable Lock Message You can set your own message that appears on the lock screen, making it useful for public computers, shared family PCs, or training kiosks.

Strong Security (AES-256-GCM Encryption) The generated executable encrypts the password with strong AES-256-GCM encryption, making it much harder to bypass or reverse-engineer.

Portable Executable The tool creates a portable .exe file that requires no installation, allowing you to run it from a USB drive or deploy it on multiple machines easily.

Offline Operation The lock screen works entirely offline, meaning it doesnโ€™t depend on the internet or any cloud service, which increases privacy and reliability.

Control Over System Features You can disable Task Manager and block Command Prompt, reducing the risk that someone bypasses the lock by killing the process or using system tools.

Auto-Start and Auto-Close The lock screen can be configured to start automatically on system boot and close on a schedule, making it ideal for labs, kiosks, or shared computers where access is restricted to specific times.

Folder Locker, Program Locker, and File Locker in One Unlike other tools, this builder combines folder locking, program locking, and file locking all in the same application, giving you full control over what can be accessed.

Schedule Lock Screen Times You can set the exact time for when the lock screen starts and ends, which is a unique feature compared to competitors.

Ransomware / Malicious Message Protection The builder includes a blacklist to prevent malicious or ransom-style messages, reducing the risk of misuse.

Free Tier Available A free plan offers basic customization, encryption, portable exe, and auto-close timer, so you can try it without cost.

How would you describe the primary audience of your product?

Dev-offcode Windows Screen Locker's answer:

Individuals or families who want to control PC usage or restrict access at specific times.

Educational institutions such as schools or training centers that use shared computers or kiosks.

Small businesses that need simple security for shared or public terminals without deploying full enterprise solutions.

IT enthusiasts or administrators looking for portable, offline, and customizable locking options for specific projects or setups.

Users seeking combined folder, program, and file locking in one tool, along with scheduling options for when the system can be accessed.

Essentially, the audience is anyone who values strong security, offline operation, and flexible customization for Windows systems, particularly in environments where multiple users share the same machine.

What makes your product unique?

Dev-offcode Windows Screen Locker's answer:

Folder Locker, Program Locker, and File Locker in One Unlike other tools, this builder combines folder locking, program locking, and file locking all in the same application, giving you full control over what can be accessed.

Schedule Lock Screen Times You can set the exact time for when the lock screen starts and ends, which is a unique feature compared to competitors.

Ransomware / Malicious Message Protection The builder includes a blacklist to prevent malicious or ransom-style messages, reducing the risk of misuse.

Portable Executable The tool creates a portable .exe file that requires no installation, allowing you to run it from a USB drive or deploy it on multiple machines easily.

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Qualys and Dev-offcode Windows Screen Locker

Qualys Reviews

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Dev-offcode Windows Screen Locker Reviews

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What are some alternatives?

When comparing Qualys and Dev-offcode Windows Screen Locker, you can also consider the following products

Nessus - Nessus Professional is a security platform designed for businesses who want to protect the security of themselves, their clients, and their customers.

Transparent Screen Lock - Password protect your workstation or server with "Transparent Screen Lock" while monitoring programs that are running.

AlienVault USM (from AT&T Cybersecurity) - AlienVault USM Anywhere delivers powerful threat detection, incident response, and compliance management for cloud, on-premises, and hybrid environments.

Windows BitLocker - This topic provides a high-level overview of BitLocker, including a list of system requirements, practical applications, and deprecated features.

Tenable.io - Tenable.io Cyber Exposure platform helps to protect any asset on any computing platform and eliminate blind spots.

XSecureLock - XSecureLock is an X11 screen lock utility designed with the primary goal of security.