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Dev tools · alternatives · 2026

24 alternatives to Kandelo – a POSIX-compatible multi-process WASM kernel for the browser

Kandelo is an open-source, Wasm-based multi-process kernel that runs POSIX programs in browsers and Node.js. Kandelo is still experimental, but it already runs a substantial range of existing software. Do you have use cases for this? We are trying Kandelo as a new foundation for WordPress Playground which runs server-side WordPress entirely in the browser. Kandelo also looks promising as a sandbox for running agents in the the browser and on the command line. On the side, we've been playing with porting games and desktop environments and even compiling runnable programs within Kandelo. Yet…

Kandelo is an open-source WebAssembly kernel that enables POSIX-compatible programs to run in web browsers and Node.js environments. Built as an experimental multi-process system, it can execute existing software… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.

  1. 1

    The open source Trello alternative. Contribute to kanbn/kan development by creating an account on GitHub.

    2025 · github.com · its alternatives →

  2. 2
    Kanwas▲441

    An open-source brain for your team

    May 2026 · kanwas.ai · its alternatives →

  3. 3
    Kanba▲332

    Open-source project management tool for modern teams

    2025 · kanba.co · its alternatives →

  4. 4

    Kando is a cross-platform open source pie menu which I am currently developing! It offers an unconventional, fast, highly efficient, and fun way of interacting with your computer! You can use it to launch applications, simulate keyboard shortcuts, open files, and much more. Let me know what you think about it!

    2024 · kando.menu · its alternatives →

  5. 5

    Hi HN! We're Gabriel & Viraj, and we're excited to open source TensorZero. To be a little cheeky, TensorZero is an open-source platform that helps LLM applications graduate from API wrappers into defensible AI products. 1. Integrate our model gateway 2. Send metrics or feedback 3. Unlock compounding improvements in quality, cost, and latency It enables a data & learning flywheel for LLMs by unifying: • Inference: one API for all LLMs, with <1ms P99 overhead • Observability: inference & feedback → your database • Optimization: better prompts, models, inference strategies • Experimentation:…

    2025 · github.com · its alternatives →

  6. 6IM

    The idea is actually quite simple. As a Japanese learner and a coder, I've always wanted there to be an open-source, 100% free for learning Japanese, similar to Monkeytype in the typing community. Unfortunately, pretty much all language learning apps are closed-sourced and paid these days, and the ones that are free have unfortunately been abandoned. But of course, just creating yet another language learning app was not enough - there has to be a unique selling point. And then I thought to myself: why not make it crazy and do what no other language learning app ever did by adding a gazillion…

    2025 · kanadojo.com · its alternatives →

  7. 7

    Massive local model speedup on Apple Silicon with MLX

    Apr 2026 · ollama.com · its alternatives →

  8. 8
    Kuzco▲216

    Open-source Swift package to run LLMs locally on iOS & macOS

    2025 · github.com · its alternatives →

  9. 9

    A large part of our (Real Kinetic's) business is helping organizations implement platform engineering, but we've found the existing tooling to be lacking. For IaC, Terraform state becomes a pain because TF treats infrastructure as "one-shot" commands. The Kubernetes controller model provides a nicer approach to managing infrastructure, but the tooling here is also lacking. For configuration management, Helm just doesn't really scale with complexity, nor does Kustomize. For resource orchestration, Crossplane is a step in the right direction but still has challenges and limitations. As a…

    2025 · koreo.dev · its alternatives →

  10. 10

    TL;DR: We built Kanbanq, a minimal task management app for indies and small teams. It keeps Trello’s simplicity but adds proper backlogs, sprints, real-time collaboration and public board sharing. Free while in alpha, feedback welcome --- I’ve been working on Kanbanq with a friend. It’s a minimal task management app we built after getting frustrated with Trello. It was great for simple boards, but it falls apart when you need backlogs (that are more than just a giant list) or want to work in sprints. Kanbanq keeps the same clean feel but adds backlog management (our unique feature), sprints,…

    2025 · kanbanq.app · its alternatives →

  11. 11
    ModelHub▲317

    The missing menu bar app for local LLMs on Mac.

    May 2026 · studio.consciousengines.com · its alternatives →

  12. 12

    Kernel in TypeScript. Contribute to intigos/possimpible development by creating an account on GitHub.

    2022 · github.com · its alternatives →

  13. 13

    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 →

  14. 14
    oqoqo▲325

    Most benchmarks today exist in curated environments and do not translate well to the real world. We built Oqoqo to bridge this gap. Oqoqo makes it super simple to build realistic evals and custom benchmarks for tasks users actually care about. Oqoqo can: - Reliably measure how agent friendly your product surfaces are against Codex, Claude Code, OpenClaw, Hermes, Pi, Opencode, Cursor, GitHub Copilot - Regression test MCP, CLI, skills, SDK, and any agent facing interface (we are continuously using Oqoqo to dogfood and improve our own MCP&#x2F;CLI) - Create and share custom benchmarks for how…

    Aug 2026 · oqoqo.ai · its alternatives →

  15. 15

    A self-hostable Wasm sandbox for JavaScript workers.

    Jun 2026 · kyushu.dev · its alternatives →

  16. 16WW
  17. 17

    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 &#x2F; 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 →

  18. 18MO

    Warning: this whole post is a blatant plug for my Open Source project https:&#x2F;&#x2F;github.com&#x2F;etiennesillon&#x2F;ModelRunner There is lot of discussion around no code platforms and why developers don’t like them. My view is that they can be very useful to quickly get through the boring parts of a project, like creating master data management screens for example. So I’ve built my own version which interprets models at run time and, it turns out, understands natural language queries too! Hi, my name is Etienne, I love coding and I’ve been doing it for a few decades now so I’d rather…

    2022 · modelrunner.org · its alternatives →

  19. 19

    📥 Turn your inbox into a kanban board. Contribute to Oxygem/Kanmail development by creating an account on GitHub.

    2020 · github.com · its alternatives →

  20. 20OA

    A lightweight engine for durable execution &#x2F; deterministic workflows I built with Rust, wasmtime and the WASM Component Model. Its main use is running reliable, long-running workflows that can automatically resume after failures. Looking for feedback on the approach and potential use cases!

    2025 · obeli.sk · its alternatives →

  21. 21
    Kerno▲132

    Hey HN! Anibal, Sean, Vlad, Maxi and Karim here we're the co-founders of Kerno (https:&#x2F;&#x2F;www.kerno.io&#x2F;). We're building a zero-hassle tool to help developers monitor and troubleshoot their services in a way that makes sense. No complex rollouts, no custom infra, no tons of instrumentation, no sidecars… none of that! Just a minimum effort, out-of-the box, highly contextualized and interactive experience so you and your team can focus on shipping! We basically scan your cluster resources, build usable abstractions on top of all the kubernetes craziness, identify monitor your…

    Dec 2025 · kerno.io · its alternatives →

  22. 22

    Lisp-based in-browser toy operating system. Contribute to AlexNisnevich/ECMAchine development by creating an account on GitHub.

    2012 · github.com · its alternatives →

  23. 23

    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&#x2F;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 →

  24. 24

    Sage is a Rust-like programming language built on a brainfuck-inspired VM with LLVM-like properties. https:&#x2F;&#x2F;github.com&#x2F;adam-mcdaniel&#x2F;sage Check out the web-demo to run the compiler in the browser, along with a graphical example using JavaScript interop! https:&#x2F;&#x2F;adam-mcdaniel.net&#x2F;sage Sage is designed to be portable, but also useful. To prove its usefulness, I used it to implement a user-space for a new operating system: SageOS https:&#x2F;&#x2F;github.com&#x2F;adam-mcdaniel&#x2F;sage-os The language also runs on embedded devices, like the flipper zero!

    2024 · github.com · its alternatives →

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