firecracker

Alternative to VMware

Secure and fast microVMs for serverless computing.

36k 2.6k99 HN points

Apache-2.0

last commit 2026-09-01

containers minimalist open-source oversubscription rust sandbox serverless virtual-machine virtualization

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Secure and fast microVMs for serverless computing.

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Free alternative to VMware

firecracker is a free, open-source alternative to VMware. Here's why:

⚡️ Lightning-fast startup
🔒 Secure microVMs
☁️ Serverless optimized
📦 Container isolation
✨ Minimal resource use

See all open-source alternatives to VMware

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slug: firecracker