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.
Join the Beta Program
We're inviting passionate flight simmers to help shape the future of add-on management. Get early access and exclusive benefits.
Download StreamlineFrequently 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?
X-Plane & Microsoft Flight Simulator. We are working on expanding this to all flight simulators.
Is Streamline free?
Yes! Streamline is free and will always be. Streamline makes money through donations and commercial developer partnerships.
How can we upload addons to Streamline?
As of now, you will have to contact us via email at contact@streamlineaddons.com. However, we are working on a new feature called Streamline Workshop, a platform for anyone to upload their addons. Addons which pass our moderation requirements will then be approved.
Can I transfer existing purchases into Streamline?
Yes you can! Just reach out to us via email at contact@streamlineaddons.com with the account email you used to purchase your existing addons and we will handle the rest.
Will my addons get deleted if I uninstall Streamline?
No, your addons will remain installed in your flight simulator.
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.
Download Streamline