nowfound

Alternatives

Products that do what MarsCode does

GPT4-powered cloud IDE & extensions

  1. 1WA
  2. 2

    A version of GPT-5 better at agentic coding

    Sep 2025

  3. 3
    Fynix664

    AI-powered development, from idea to execution

    2025

  4. 4
    Arvin303

    The 1st code interpreter extension powered by GPT-4, free

    2023

  5. 5
    Zencoder 766

    Integrated, customizable, and intuitive coding agent

    2025 · zencoder.ai

  6. 6

    Cloud agent for parallel dev tasks, powered by Codex-1

    2025

  7. 7
    Autocode291

    Build app-to-app API workflows with automatic codegen

    2020

  8. 8
    opencode395

    Your terminal's AI agent, with any model you want

    2025

  9. 9
    1Code575

    Open source Cursor-like UI for Claude Code

    Jan 2026

  10. 10

    The open-source coding autopilot

    2023

  11. 11BD

    Hi HN, we’re Nick and Drew, and we’re building boxes.dev – the first cloud-only agentic dev environment (ADE) that gives every Codex and Claude Code agent its own cloud computer. We’re two engineers who previously built Gem (co-founder/CTO and first hire), and we spent the last year coding almost exclusively using Codex and Claude Code. It’s been a huge change to how we code, and it’s been exhilarating seeing the models keep getting better – but we eventually realized that developing on localhost was holding us back: - Git worktrees are clunky to set up and use for parallelizing work -…

    Jun 2026 · boxes.dev

  12. 12

    Open-source, lightning speed autonomous AI coding agent

    2025

  13. 13
    Grass291

    Gives your coding agent a dedicated VM that's ready 24/7

    Apr 2026

  14. 14

    Fast and efficient models optimized for coding and subagents

    Mar 2026

  15. 15

    Announcing GPT-4.1, GPT-4.1 mini, & GPT-4.1 nano in the API

    2025

  16. 16GE

    Hello Hacker News community, Wanted to share a project I started working on during my spare time and was then discovered by many in the open source community last week. GPT Engineer’s mission: Be the open platform for devs to tinker with and build their personal code-generation toolbox. I believe it's key for us devs to engage in how building software can and will change. You can find more info about the flexible technical "philosophy" to make it work well, and the community we want it to become on github: https://github.com/AntonOsika/gpt-engineer The project is still in…

    2023

  17. 17

    An ultra-fast model for real-time coding in Codex

    Feb 2026

  18. 18G3

    2022 · musings.yasyf.com

  19. 19PA

    Hey HN, I'm building Plandex (https://plandex.ai), an open source, terminal-based AI coding engine for complex tasks. I built Plandex because I was tired of copying and pasting code back and forth between ChatGPT and my projects. It can complete tasks that span multiple files and require many steps. It uses the OpenAI API with your API key (support for other models, including Claude, Gemini, and open source models is on the roadmap). You can watch a 2 minute demo here: https://player.vimeo.com/video/926634577 Here's a prompt I used to build the AWS…

    2024 · github.com

  20. 20
    GPT-5.6340

    A new standard for intelligence and efficiency

    Jul 2026 · openai.com

  21. 21
    GoCodeo220

    An AI coding agent extension for VSCode

    2025

  22. 22

    Generate, refactor & debug with GPT-4. All inside VSCode

    2023

  23. 23MA

    I've been exploring the (not so=) amazing potential of AI in coding and have compiled a list of tools. From AI-powered IDEs to code generators, this resource is my contribution to the community. I'm still on the fence about including txt2sql projects, as their functionality seems too basic to me. And I'm personally maintaining this, so your feedback is wellcome.

    2025 · aicode.danvoronov.com

  24. 24G4

Ranked by how close each launch is in meaning, then by votes. Refine with a description →