Life & fun · alternatives · 2026
24 alternatives to Ksm – a lightweight hypervisor for Windows (eptp vmfunc+idt shadow)
A fast, hackable and simple x64 VT-x hypervisor for Windows and Linux. Builtin userspace sandbox and introspection engine. - asamy/ksm
KSM is a lightweight hypervisor designed for Windows systems that uses extended page table pointers and virtual machine function instructions to optimize performance. It leverages interrupt descriptor table shadowing… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Ksm – a lightweight hypervisor for Windows (eptp vmfunc+idt shadow) launched in 2016; newer entries below may have overtaken it.
- 1
:racehorse: Extremely minimal vmm for linux written in C. Hopefully someday will spin linux-vm for you. - flouthoc/wiser
2021 · github.com · its alternatives →
- 2
"interesting" VM in C. Let's see how this goes. Contribute to tekknolagi/carp development by creating an account on GitHub.
2014 · github.com · its alternatives →
- 3
HVM1 (2022): a massively parallel, optimal functional runtime in Rust - HigherOrderCO/HVM1
2022 · github.com · its alternatives →
- 4
- 5
A Fully Homomorphic Encryption Brainfuck virtual machine - f-prime/arcanevm
2019 · github.com · its alternatives →
- 6
I've built this to make it easy to host your own infra for lightweight VMs at large scale. Intended for exec of AI-generated code, for CICD runners, or for off-chain AI DApps. Mainly to avoid Docker-in-Docker dangers and mess. Super easy to use with CLI / Python SDK, friendly to AI engs who usually don't like to mess with VM orchestration and networking too much. Defense-in-depth philosophy. Would love to get feedback (and contributors: clear & exciting roadmap!), thx
2025 · github.com · its alternatives →
- 7
hey guys. the other day i was migrating hosting providers and i just needed something not too heavy and convenient to spin up my backups for awhile and realised there is almost nothing out there. kimchi hasn't been updated for years and cockpit is heavy. so here's something i came up with in a couple hours because of a sudden urge, nothing fancy just basic creation with cloud init, lifecycle management and image/storage, but it's modern-ish and it compiles to a 8.4mb binary inclusive of the embedded web UI, CLI and API, and only dep is libvirt.
2025 · github.com · its alternatives →
- 8
HiddenVM — Use any desktop OS without leaving a trace. - aforensics/HiddenVM
2020 · github.com · its alternatives →
- 9
Create microVMs from OCI images. Contribute to slp/krunvm development by creating an account on GitHub.
2021 · github.com · its alternatives →
- 10
:racehorse: Extremely minimal vmm for linux written in C. Hopefully someday will spin linux-vm for you. - flouthoc/wiser
2021 · github.com · its alternatives →
- 11
Heap based scheme machine. GitHub Gist: instantly share code, notes, and snippets.
2025 · gist.github.com · its alternatives →
- 12
I wanted to see how fast an isolated code sandbox could start if I never had to boot a fresh VM. So instead of launching a new microVM per execution, I boot Firecracker once with Python and numpy already loaded, then snapshot the full VM state. Every execution after that creates a new KVM VM backed by a `MAP_PRIVATE` mapping of the snapshot memory, so Linux gives me copy-on-write pages automatically. That means each sandbox starts from an already-running Python process inside a real VM, runs the code, and exits. These are real KVM VMs, not containers: separate guest kernel, separate guest…
Mar 2026 · github.com · its alternatives →
- 13LV
Hello HN! We've been working on a new hypervisor https://kwarantine.xyz that can run strongly isolated containers. This is still a WIP, but we wanted to give the community an idea about our approach, its benefits, and various use cases it unlocks. Today, VMs are used to host containers, and make up for the lack of strong security as well as kernel isolation in containers. This work adds this missing security piece in containers. We plan on launching a free private beta soon. Meanwhile, we'd deeply appreciate any feedback, and happy to answer any questions here or on our slack…
2021 · its alternatives →
- 14
This is a project I made over the weekend. What if when you SSH'd into a machine, instead of giving you a user login, it would provision a new microVM just for you? It's like a little SimCity for VMs. This turned out to be a lot of fun, and I've wanted to make my own custom SSH server for a while now, with its fancy progress bars and color animations. The hardest part was definitely debugging VM setup, boot, and networking though! Compiling the Linux kernel with all the right configs was difficult. For a while I had issues with silent hangs on boot due to lack of available system entropy, on…
2025 · ekzhang.substack.com · its alternatives →
- 15
Statechart library and editor. Contribute to jonasblixt/ufsm development by creating an account on GitHub.
2018 · github.com · its alternatives →
- 16AV
Find information, resources and relevant links for liuchengxu.org. This domain may be for sale.
2017 · vim.liuchengxu.org · its alternatives →
- 17
A multitasking monolithic Kernel based x86 targeting Operating System written in C# from scratch aiming for high-level implementation of drivers in managed environment. - amaneureka/AtomOS
2017 · github.com · its alternatives →
- 18
2011 · l4dev.org · its alternatives →
- 19
Kodus▲145Hey everyone, Just wanted to share a quick update we just launched at Kodus. For those who don’t know it yet, Kodus is a code review agent that runs directly in your team’s Git workflow (GitHub, GitLab, Bitbucket… and now Azure DevOps as well). It helps maintain code quality and consistency by analyzing each PR based on your team’s own rules and repository standards. Support for Azure had been a common request — so if your team uses it, you can now plug Kodus right into your workflow and give it a try. Docs: https://docs.kodus.io/how_to_use/en/overview Repo:…
Oct 2025 · kodus.io · its alternatives →
- 20
Minimalist, dependency-free virtual machine sandbox for microcontrollers and other resource-constrained devices. Single C file, no dynamic memory allocations, asynchronous design, pure C99 - ringtailsoftware/uvm32
Dec 2025 · github.com · its alternatives →
- 21
Skim▲141I built Skim because I was super dissatisfied with all existing Windows clients. I mean, it's not a rocket science, there should be some lightweight modern solution, isn't it? So I decided to create a client that just, you know, MAKES SENSE and has design younger than dinosaurs. Key points: * Obsessed with installer size: it should be under 5Mb. * BYOK AI. Cowriter, agentic search, summarization and other AI stuff is powered by your own key for Anthropic/Openrouter, or you can connect your own OpenAI-compatible server (including local) * No bloat. It should be as contextual as possible:…
Jul 2026 · skim-tech.com · its alternatives →
- 22
2019 · github.com · its alternatives →
- 23
Contribute to libriscv/drogon-sandbox development by creating an account on GitHub.
2024 · github.com · its alternatives →
- 24
Virtink is a Kubernetes add-on for running Cloud Hypervisor virtual machines. By using Cloud Hypervisor as the underlying hypervisor, Virtink enables a lightweight and secure way to run fully virtualized workloads in a canonical Kubernetes cluster.
2022 · github.com · its alternatives →
Also compare
- Wiser – minimal hypervisor boots Linux VM, written in C alternatives
- A small virtual machine written in C alternatives
- High-order Virtual Machine (HVM) – A Parallel Functional Runtime alternatives
- HyperTerm alternatives
- ArcaneVM – A Fully Homomorphic Encryption Brainfuck Virtual Machine alternatives
- Katakate – Dozens of VMs per node for safe code exec alternatives
Ranked by how close each launch is in meaning, then by votes. Prices were read from each product’s own site when checked and can change. Refine with your own description →