Life & fun · alternatives · 2026
24 alternatives to Opasm, an Assembly REPL
This is a fun repl for running arbitrary assembly commands, right now it supports x86, X86_64, arm, aarch64, but there's not a big reason that I can't add support for other qemu/capstone/unicorn/ keystone supported architectures, just have to do it
Opasm is a read-eval-print loop for writing and executing assembly code directly. It supports x86, x86_64, ARM, and AArch64 architectures, with potential for adding more through its use of QEMU, Capstone, Unicorn, and… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes.
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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 →
- 2
Repl.it▲399Code and deploy apps in any language right from your browser
2018 · replit.com · its alternatives →
- 3RD
2019 · redasm.io · its alternatives →
- 4
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 →
- 5
simple virtual machine and assembler. Contribute to ronsoros/rvm development by creating an account on GitHub.
2016 · github.com · its alternatives →
- 6
HVM1 (2022): a massively parallel, optimal functional runtime in Rust - HigherOrderCO/HVM1
2022 · github.com · its alternatives →
- 7
Readable macroassembler for CLR IL. Contribute to akalenuk/milasm development by creating an account on GitHub.
2023 · github.com · its alternatives →
- 8
Replicas▲239Hey HN! I'm Connor, creator of Replicas. I'm a heavy Codex/Claude Code user, and I wanted to hand off tasks to agents like I would to an engineer - kick something off before work, let it scaffold while I'm at lunch, even come back to a ready PR. The problem: existing alternatives use workspace VMs that are black boxes. I have no access to any of them - they can't run tests, read logs, or use tools like the Playwright MCP (which I use to verify agents actually fixed what they claim to fix). Replicas gives agents real cloud workspaces where they can: - Run your test suite and read the…
Jun 2026 · replicas.dev · its alternatives →
- 9OA
A lightweight engine for durable execution / 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 →
- 10
Hi HN! Ever wish you could just point your AI assistant at your terminal and say 'what's wrong with this output?' That's why I built iterm-mcp. It lets MCP clients like Claude Desktop directly interact with your iTerm2 terminal - reading logs, running commands, using REPLs, and helping debug issues. Want to explore data or debug using a REPL? The AI can start the REPL, run commands, and help interpret the results. This is an MCP server that integrates with Claude Desktop, LibreChat, and other Model Context Protocol compatible clients.…
2025 · github.com · its alternatives →
- 11
Hello, World! written in seemingly "gibberish" x86 assembly using obfuscation on the assembly and machine code -level - phoreverpheebs/gibberish
2023 · github.com · its alternatives →
- 12
`pip install replbuilder` Making a small tool for easier repl building, no more manual argument parsing. Perfect for creating ops tools and other context heavy cli operations.
2023 · github.com · its alternatives →
- 13
Assemble▲95One /go command for AI work that remembers — zero runtime
Apr 2026 · assemble.cohesium.ai · its alternatives →
- 14
Hey HN, I’ve built Open Codex, a fully local, open-source alternative to OpenAI’s Codex CLI. My initial plan was to fork their project and extend it. I even started doing that. But it turned out their code has several leaky abstractions, which made it hard to override core behavior cleanly. Shortly after, OpenAI introduced breaking changes. Maintaining my customizations on top became increasingly difficult. So I rewrote the whole thing from scratch using Python. My version is designed to support local LLMs. Right now, it only works with phi-4-mini (GGUF) via…
2025 · github.com · its alternatives →
- 15
I created this because sometimes I want more than rlwrap but less than emacs. icl aims to hit that middle sweet spot. It's a terminal application with context-aware auto-complete, an interactive object inspector, auto-indentation, syntax colouring, persistent history, and much more. It uses sly to communicate with the child lisp process and aims to be compatible with any sly-supporting implementation. I hope others find it useful!
Dec 2025 · github.com · its alternatives →
- 16
I recently created this project to teach assembly, and to have an assembly playground in the style of codepen/jsfiddle to embed in my blog posts. It's based on a wasm version of the blink x86-64 emulator, so everything runs client side with no backend server and with a runtime of only ~200Kb
2024 · x64.halb.it · its alternatives →
- 17
2016 · decompiler.org · its alternatives →
- 18
Bash4LLM is a single-file Bash wrapper for interacting with LLMs from the terminal. I created it because I wanted something simple that worked without installing Python, Node, or any other runtime. It uses only Bash, curl, and jq. You can send prompts, start a small chat, process files line by line, stream output, and save session metadata in JSON format. I tried to make it safe and predictable: no use of the system /tmp, no use of eval. Groq is supported by default, and other providers can be added with dedicated Bash scripts in the extras/providers/ folder. Example: echo…
Jun 2026 · github.com · its alternatives →
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G'day, HN! I'm one of the maintainers of `llm`. I've been working alongside a trusty group of contributors to bring this project to life, and we're now at a point where we're ready to share it with the world. Large language models (LLMs) are taking the computing world by storm due to their emergent abilities that allow them to perform a wide variety of tasks, including translation, summarization, code generation, and even some degree of reasoning. However, the ecosystem around LLMs is still in its infancy, and it can be difficult to get started with these models. `llm` is a one-stop shop for…
2023 · github.com · its alternatives →
- 20
We heard your requests for Haskell and today we're excited to finally announce Haskell as yet another language we support. We've decided to put our focus...
2017 · repl.it · its alternatives →
- 21
2015 · github.com · its alternatives →
- 22
Merry Christmas, everyone! Now you can compile Haskell code on Windows 11 ARM. It will run full speed if you use UTM/QEmu on Apple silicon. :-) It's a very draft version, but it works well. Any ideas?
2024 · gitlab.haskell.org · its alternatives →
- 23
Everything that would be here is in the README. I hope this gets big, it has tons of potential.
2013 · github.com · its alternatives →
- 24XV
2015 · gedrap.github.io · its alternatives →
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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 →