ReactOS has a Lunoo score of 4.4/10. This score is based on AI-powered analysis of category fit, feature coverage, pricing signals, public reception, and recency.

Where does ReactOS rank on Lunoo?

ReactOS is ranked #29 in Lunoo's Best Operating System rankings with a score of 4.4/10.

How does ReactOS compare to competitors?

Lunoo provides objective, AI-powered comparisons. Use the comparison tool to see ReactOS side-by-side with any alternative.

zoom_in Click to enlarge

ReactOS

4.42

Poor

▲ ▼

language

description ReactOS Overview

ReactOS is an open-source, six-step microkernel operating system aiming to be binary compatible with Windows NT, allowing for the running of existing Windows applications and drivers on different hardware architectures.

help ReactOS FAQ

How good is ReactOS?

ReactOS scores 4.42/10 (Poor) on Lunoo, making it rated in the Operating System category. Ambitious Windows compatibility project with notable technical progress, but persistent instability, incomplete compatibility, and perpetual alpha sta...

What are the best alternatives to ReactOS?

See our alternatives page for ReactOS for a ranked list with scores. Top alternatives include: Haiku, Fedora Linux, openSUSE Tumbleweed.

How does ReactOS compare to Haiku?

See our detailed comparison of ReactOS vs Haiku with scores, features, and an AI-powered verdict.

Is ReactOS worth it in 2026?

With a score of 4.42/10, ReactOS is a solid option in Operating System. See all Operating System ranked.

swap_horiz

Looking for ReactOS alternatives? Compare top competitors ranked & scored

arrow_forward