Free and Portable Windows Software

Software Built for the Way You Actually Work

Every tool in the RJL Software collection was built to solve a specific problem that Windows does not handle well on its own. These are not bloated suites packed with features you will never use. Each program does one thing, does it well, and stays out of your way. That focused approach is why IT professionals, system administrators, and power users have relied on these tools for nearly three decades.

Most of these utilities started as internal tools - built to solve real problems in real IT environments. A sysadmin needed to retrieve a lost Windows product key before a deadline. A help desk team needed to push mandatory policy notices to 500 workstations without installing software on each one. A developer needed to test a firewall rule and had no easy way to listen on a port. Each of those problems became a focused utility, and over time that collection grew into the 30+ tools available today.

What sets this software apart is how it respects your system and your time. There are no ads baked into the interface. No telemetry phoning home. No bundled browser toolbars or "recommended" software snuck into the installer. In most cases, there is no installer at all - just a single executable you can run from anywhere, including a USB drive. When you are done, delete it and it leaves nothing behind. That is what portable software should be.

Browse Our Software Categories

The collection is organized into two categories. Utility software covers system administration, network tools, automation, and diagnostics - the tools IT teams reach for every day. Desktop software focuses on personalization: screen savers, wallpaper rotation, and desktop companions that make Windows feel more like yours.

Utility Software 28 tools

Boost productivity with a wide range of IT administration and system tools. Network messaging, login script utilities, CD management, system information, startup and shutdown managers, file search-and-replace, and much more.

Browse Utilities

Desktop Software 4 tools

Customize and enhance your Windows experience with screen savers, desktop companions, and wallpaper changers. Turn your photo collection into a screensaver, rotate wallpapers automatically, or add a playful animated buddy to your desktop.

Browse Desktop Tools

Who Uses RJL Software

These tools are used by a wide range of people, from solo IT consultants managing a handful of clients to enterprise teams supporting thousands of workstations. Here are some of the most common scenarios:

• IT Administrators - Deploy login scripts that inventory hardware, enforce messaging policies, toggle keyboard states, and automate startup sequences across hundreds of machines. Tools like Log Info, Message Manager Deluxe, and Windows Product Key Viewer are staples in enterprise IT toolkits.
• Developers and QA Engineers - Test firewall rules with Port Listener, resize browser windows to exact breakpoints with Resize Browser, and batch-process images for documentation with Resize JPEGs. Small, single-purpose tools that fit into any workflow.
• Help Desk and Support Teams - Keep a USB drive loaded with portable diagnostics. Retrieve product keys, check RAM specs, view system uptime, and search-and-replace across config files - all without installing anything on the user's machine.
• Home Users and Hobbyists - Turn a photo collection into a screensaver slideshow, rotate desktop wallpapers automatically, or add a fun animated companion to the desktop. Simple tools that make Windows more personal without any complexity.

What "Fully Portable" Means

Portable software is a fundamentally different approach to how programs should work. Instead of scattering files across your system, modifying the registry, and requiring administrator privileges to install, portable tools are self-contained. They run from wherever you put them and clean up after themselves. This matters because it means you can carry your entire toolkit on a USB drive, run it on any Windows machine you encounter, and leave no trace when you are done.

• No Installation Required - Runs directly from an .exe file or folder.
• Self-Contained - Stores settings, configurations, and dependencies in its own folder.
• No Registry Modifications - Does not change system settings or install drivers.
• Portable Storage - Can be copied to a USB drive and used on multiple computers.
• Leaves No Trace - Does not leave behind files or registry entries after use.

Nearly 30 Years of Continuous Development

RJL Software has been building Windows utilities since 1996. That is not a marketing claim - it is nearly three decades of shipping software, fixing bugs, responding to user feedback, and adapting to every major Windows release from Windows 95 through Windows 11. Tools that have been in active use for that long have had every edge case filed down and every common workflow refined.

Unlike many utility sites that offer repackaged open-source tools or abandoned shareware, every program in this collection is original software developed and maintained by RJL Software. When a new version of Windows changes how product keys are stored, or how the Messenger service works, or how screensavers are registered, these tools get updated. That kind of long-term commitment to maintenance is rare, and it is what separates software you can depend on from software you will have to replace next year.