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Built from scratch with Rust + GPUI for instant startup, minimal resource usage, and a modern native experience.
curl -sSfL https://vesper.devflare.de/install | shDetected: All Platforms
Designed with performance, safety, and customization in mind. Explore what sets Vesper apart.
Launch Minecraft in a flash! No waiting around, just hop in and play.
Install and manage mods with a click via Modrinth & CurseForge integration.
A focused, elegant interface crafted for clarity, speed, and ease of use — built with GPUI for GPU-accelerated rendering.
Sign in with your Microsoft account via secure browser-based OAuth2 flow.
Currently migrating the full UI to GPUI. Login page complete, more pages coming soon.
Built from the ground up with performance as the foundation. See how we compare to popular launchers.
⚠️ Performance targets based on Rust/GPUI architecture analysis — not yet benchmarked in production.
Native Rust binary vs Electron/Java overhead
Lightweight native UI vs heavy frameworks
Wide mod loader compatibility
*Performance metrics are projected targets based on architecture analysis, not production benchmarks.
Be among the first to experience the next generation of Minecraft launching. Shape the product with your feedback.
Experience sub-second launch times powered by Rust + GPUI.
Your feedback directly influences features and priorities.
Full source code access. Contribute, fork, or just learn.
Get new features before anyone else — no waiting.
Test and request UI themes before they ship publicly.
Direct line to the dev team via private Discord channel.
Free · No credit card · Cancel anytime
An open-source project crafted with care by people who love Minecraft and great software.
2+
Contributors
100%
Open Source
GPL-3.0
License
Built With
Vesper provides powerful tools and APIs for developers to create plugins, integrate mod loaders, and extend functionality.
No web views, no JavaScript bridges — everything is native Rust compiled to machine code
Full compatibility with Fabric, NeoForge, and Vanilla Minecraft
All code is public on GitHub. Audit it, contribute, or fork it for your own projects
Vesper is designed for seamless, fast performance—lightweight on resources, but tuned for modern desktop hardware.
Java 17 or 21 (required)
Vesper requires Java to run Minecraft. Download from adoptium.net
Windows 10/11 (64-bit)
Linux and macOS support coming soon
Intel Core i5 / AMD Ryzen 5 or better
Modern dual-core processor recommended
4 GB minimum, 8 GB recommended
More RAM allows for larger modpacks
1 GB available space
Plus additional space for Minecraft installations
Stable broadband connection
Required for multiplayer and mod downloads
Answers to what people usually want to know about Vesper and why it is different.
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View All FAQDownload Vesper for free. Available on Windows, macOS, and Linux. No account required.