Life & fun · alternatives · 2026
24 alternatives to Subgraph OS, the secure os
Adversary-resistant computing: an immutable, verifiable operating system with isolated workspaces, plus expert security services.
Subgraph OS is an immutable operating system designed for users facing sophisticated threats. It features a read-only base system protected by cryptographic verification that prevents unauthorized modifications… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Subgraph OS, the secure os launched in 2016; newer entries below may have overtaken it.
- 1
Hi HN, I’m Dvir, a young developer. Last year, I got rejected after a job interview because I lacked some CPU knowledge. After that, I decided to deepen my understanding in the low level world and learn how things work under the hood. I decided to try and create an OS in C and ASM as a way to broaden my knowledge in this area. This took me on the most interesting ride, where I’ve learned about OS theory and low level programming on a whole new level. I’ve spent hours upon hours, blood and tears, reading different OS theory blogs, learning low level concepts, debugging, testing and working on…
Oct 2025 · github.com · its alternatives →
- 2
VEKOS(Verified Experimental Kernel OS) is a Rust-based experimental kernel that focuses on runtime verification and security. Every filesystem operation and memory allocation generates cryptographic proofs that can be verified in real-time, ensuring system integrity. Think of it like a blockchain for OS operations rather than just storage verification. Key features: - Merkle tree-backed filesystem with operation verification - Memory manager with CoW and proof generation - Buddy allocator with zone-based memory management - Shell with VT100 support - Verified boot sequence with stage…
2024 · github.com · its alternatives →
- 3
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 →
- 4
To try it out, simply build the project yourself from source, or use attached bootable ISO image of the system (in Releases on Github) and run it in QEMU. https://blog.vxn.dev/rou2exos-rusted-edition
2025 · github.com · its alternatives →
- 5
A distributed, fast open-source graph database featuring horizontal scalability and high availability - GitHub - vesoft-inc/nebula: A distributed, fast open-source graph database featuring horizontal scalability and high availability
2020 · github.com · its alternatives →
- 6
Copper is an operating system for robots - build, run, and replay your entire robot deterministically. - Home · copper-project/copper-rs Wiki
2024 · github.com · its alternatives →
- 7
Dear HN community! Looking forward to hearing your feedback on ACE (assured confidential execution), technology that implements VM-based trusted execution environment (TEE) for embedded RISC-V systems with focus on a formally verified and auditable firmware. We target high-assurance systems that can benefit from compartmentalization and hardware-backed isolation. The key ingredient called security monitor (firmware) is implemented in Rust. The formal specification is defined as annotations directly in code and gets translated to Coq using RefinedRust automation. ACE design is now part of the…
2025 · github.com · its alternatives →
- 8
Keygraph▲6AI-native security OS for Compliance, IGA, MDM and AppSec.
Nov 2025 · keygraph.io · its alternatives →
- 9
GrapheneOS▲116Open source mobile OS focused on privacy and security.
2019 · grapheneos.org · its alternatives →
- 10
Sourcegraph 4.0▲106The code intelligence platform for modern devs
2022 · sourcegraph.com · its alternatives →
- 11
2014 · github.com · its alternatives →
- 12
Free cross-platform deniable encryption cryptoarchiver - GitHub - zorggomat/FractalCryptGUI: Free cross-platform deniable encryption cryptoarchiver
2021 · github.com · its alternatives →
- 13
Qubes OS▲58Security-oriented OS for single-user desktop computing
2022 · qubes-os.org · its alternatives →
- 14
A subversive boilerplate for cypherpunks everywhere. - StrongCryptoWarning/StrongCryptoDisclosure.md at master · tuxxy/StrongCryptoWarning
2018 · github.com · its alternatives →
- 15OT
In the past few days, there have been uncertainties and concerns about the LUKS (“Linux Unified Key Setup”) disk encryption, which is widely used on Linux. We publish our assessment of this here.
2023 · dys2p.com · its alternatives →
- 16
This project contains no code from Linux, BSD, Minix, or any other OS. Everything up until this point is written entirely from scratch, including a pure microkernel (that only implements multiprocessor priority scheduling, memory management, and interprocess communication), a work-in-progress implementation of the standard C library, and a variety of servers that provide drivers and other essential OS functionality. At the time of writing this post, the servers provide drivers for the keyboard, NVMe SSDs (that works on real hardware), a Unix-like virtual file system (with a single root…
2024 · github.com · its alternatives →
- 17
Hey HN! After 6 years of R&D, our small team is excited to share our project TideCloak - an IAM designed to help developers move fast without worrying about catastrophic breaches or overpowered admins with keys to the kingdom. Traditional IAMs rely on centralized authority - admins, root certificates, and decryption keys - which create glaring vulnerabilities in a breach. To address this, we’ve integrated Keycloak (Red Hat’s IAM) with a decentralized key architecture powered by our (academically validated) Ineffable Cryptography. Here’s the idea: keys are split across a decentralized network…
2024 · github.com · its alternatives →
- 18VO
Vanilla OS is an operating system built with simplicity in mind. It
Aug 2026 · vanillaos.org · its alternatives →
- 19
An open source cybersecurity protocol for syncing decentralized graph data. - amark/gun
2014 · github.com · its alternatives →
- 20
An open source cybersecurity protocol for syncing decentralized graph data. - amark/gun
2016 · github.com · its alternatives →
- 21
Hello HN, What is CambiOS? A microkernel OS built in Rust, that boots in QEMU under x86_64, AArch64, and RISC-V - targeting formal verification. Processes are assigned unforgeable cryptographic identity and IPC gates access to only allowed endpoints. What does it want to be? Ambitious. Cutting away latent security issues, corporate surveillance, centralized identity and data hosting, and OPEN. With the advent of the coding tools, building the things we want is a bit less of a lift. Could it replace Windows? Sure. That's where the idea was born. Secure and intuitive, in a nutshell. I've been…
Jun 2026 · github.com · its alternatives →
- 22AC
I built this toolkit with my colleague to dive deep into OS internals and automate the identification of privilege escalation vectors. Written in pure C without external dependencies, it explores everything from Linux capabilities and Docker escapes to Windows token manipulation and service permissions. We believe that the constant struggle between breaking and securing systems is the ultimate driver of software evolution. This tool is our contribution to that cycle, designed for researchers who want to understand how low-level misconfigurations can be discovered and audited across different…
Jan 2026 · its alternatives →
- 23
Rust crypto w/ zero default deps: BLAKE3, Ed25519/X25519, hashes, MACs, KDFs, AEADs, and checksums w/ full SIMD/ASM acceleration - GitHub - loadingalias/rscrypto: Rust crypto w/ zero default deps: BLAKE3, Ed25519/X25519, hashes, MACs, KDFs, AEADs, and checksums w/ full SIMD/ASM acceleration
Jun 2026 · github.com · its alternatives →
- 24BI
Self-hosted virtual machines for background coding agents.
Jun 2026 · bastion.computer · its alternatives →
Also compare
- MyraOS – My 32-bit operating system in C and ASM (Hack Club project) alternatives
- Vekos – a Rust OS with Built-In Cryptographic Verification alternatives
- A new hobby OS from “scratch” in C# alternatives
- A DOS-like hobby OS written in Rust and x86 assembly alternatives
- Nebula – a distributed graph database written in C++ alternatives
- Copper – Open-source robotics in Rust with deterministic log replay 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 →