Kazumi is a free, open-source anime streaming and aggregation app built with Flutter. It lets Windows users scrape, stream, and manage anime catalogs from multiple websites using custom XPath rules, featuring real-time Anime4K upscaling, Danmaku overlay comments, and cross-device playback synchronization.

Overview of Kazumi

During my testing on Windows, Kazumi launched instantly and handled 1080p feeds with minimal RAM footprint thanks to its optional low-memory caching mode. The built-in media-kit engine offloads video processing directly to the GPU, keeping CPU usage low even with real-time upscaling active. It cleanly solves the hassle of broken anime aggregators by letting you switch or repair video sources on the fly.

Core Features of Kazumi

Custom XPath rules let you build, import, and share scrapers for any anime site with just five lines of syntax.
Anime4K upscaling enhances lower-resolution streams in real time using your dedicated graphics card.
Danmaku comment support pulls interactive floating viewer comments directly via the integrated DanDanPlay platform.
SyncPlay watch-together protocol enables synchronized multi-user playback across shared public rooms.
Zero ad injection guarantees a clean viewing interface without tracking scripts, telemetry, or third-party banners.

System Compatibility

Windows 10 and Windows 11 (64-bit)
macOS 10.15+, Linux (x64 / Flatpak / AUR), Android 10+, and iOS 13+

Why Choose Kazumi?

Unlike bloated anime desktop clients packed with promotional pop-ups, Kazumi gives you complete control over your content scrapers and video players. Its lightweight GPL-3.0 codebase never collects personal telemetry or consumes unnecessary background resources.