The future of flight sim
add-on installation
One marketplace to discover, install, and update all your flight simulator addons. Built for flight simmers, by flight simmers.
Seamless Add-on Installation
With just one click, Streamline installs your flight sim add-ons in the right place and automatically handles any required dependencies—no manual steps needed.
Community Marketplace
Discover the best payware and freeware add-ons, handpicked for quality and compatibility. Find new experiences and enhance your flights with ease.
Truely cross simulator and platform
Find & manage addons for MSFS2020, MSFS2024, X-Plane 12 and X-Plane 11 all in one place. We support both freeware & payware addons.
100% Free for All Simmers
Streamline is completely free to use. Built to be compatible with Windows, MacOS and Linux, offering you a truly cross-platform, cross-simulator experience.
Frequently Asked Questions
Does Streamline have freeware?
Yes we do! In fact, Streamline's mission is to help flight simmers install & download freeware addons easily across all platforms.
What flight simulator does Streamline work with?
Basically any flight simulator that we have addons for! For now we have Xplane and Microsoft Flight Simulator addons, but we've developed streamline to be highly modular so that adding compatibility for a new simulator is as simple as uploading an addon for that simulator.
Is Streamline free?
Yes! Streamline is free and will always be. We pay the bills through donations, developer partnerships and payware addon sales commissions.
How can we upload addons to Streamline?
Just drop us a quick email at contact@streamlineaddons.com and we will get you onboarded!
Will my addons get deleted if I uninstall Streamline?
No, your addons will remain installed in your flight simulator.