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Dev tools · alternatives · 2026

24 alternatives to Lucid Train

Build system design for new and existing codebase

Lucid Train generates architecture diagrams directly from a codebase and passes them to a coding agent as specifications for building or modifying systems. It runs entirely offline using local models on a desktop app… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Prices are shown for the 2 we have checked on their own sites, 2 of them free or with a free tier.

  1. 1
    Lucid▲196

    Create design systems

    2018 · lucid.style · its alternatives →

  2. 2

    In the past I've used declarative diagram generation tools like Mermaid.js a lot for quickly drawing up things but for presentations or deliverables I find that I have to then move the generated diagrams over to a tool like Lucidchart which allows full control of the organization and customization. Therefore I am now working on this to combine the benefits of both into just one tool which can do both functions. The project is certainly in the early stages but if you find yourself making architecture diagrams I'd love to hear your thoughts on the idea or even a Github issue for a feature…

    Oct 2025 · github.com · its alternatives →

  3. 3

    Use generative AI to create future-facing videos

    2022 · studio.d-id.com · its alternatives →

  4. 4
    SimplAIfree tier, from $5/mo▲589

    Hey HN, I've been building SimplAI for the past several months — it's a platform for building, testing, and deploying LLM-powered agents and multi-step workflows. The problem I kept running into: spinning up an AI agent pipeline means stitching together prompt management, tool calling, memory, evals, and deployment — often from scratch every time. SimplAI tries to be the layer that handles all of that so you can focus on what your agent actually does. What it does: - Visual + code-first workflow builder for chaining LLM calls, tools, and APIs - Built-in prompt versioning and A/B testing…

    2025 · simplai.ai · its alternatives →

  5. 5

    Visualize code for faster onboarding, planning, and reviews.

    2021 · its alternatives →

  6. 6
    Boxes.devfree tier, from $19/mo▲112

    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 · its alternatives →

  7. 7
    Fusion▲297

    One codebase for engineers, designers, PMs, and marketers. Everyone works from one source of truth, on brand and in code, with no handoffs to clean up.

    2025 · builder.io · its alternatives →

  8. 8
    Contral▲154

    Contral is the IDE that teaches while you build — and the extension that drops the same teaching layer onto Cursor, Copilot, Claude Code, Codex, Cline, Kilo Code, Windsurf, Antigravity. Vibecode at full speed and actually understand every line that ships. Recursive coding agent built in.

    Mar 2026 · contral.ai · its alternatives →

  9. 9
    DexCode▲94

    Your AI Agent builds the Deck & you never leave the terminal

    Mar 2026 · co-r-e.github.io · its alternatives →

  10. 10

    Virtual whiteboard powering collaborative teams

    2020 · lucid.co · its alternatives →

  11. 11
    CodeGuide▲126

    Generate PRDs, specs and wireframes your AI understands.

    Mar 2026 · codeguide.dev · its alternatives →

  12. 12

    Visualize and understand your cloud environment

    2021 · lucid.co · its alternatives →

  13. 13
    Replicas▲239

    Hey 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 →

  14. 14

    Agent tooling for generative LEGO models building, built with Astra and Opus 5.5, powered by Jev - anteloc/ldraw-nova

    20d ago · github.com · its alternatives →

  15. 15

    Hi HN, I’m Michael, I built AgentGrid with my friend Souren because we were tired of losing our coding sessions and couldn't keep track of what was actually being built across our many projects. Our approach was to use an infinite canvas desktop app for the TUIs we already know and love, mainly claude + codex. We drew inspiration from Figma and Railway. Overtime we added image nodes, notes, terminals, coding editors, source control, etc. I wasn't sure about it at first. It took me a month to give the first version Souren built a real try. What got me was an Apple System Update I've been…

    Jul 2026 · agentgrid.sh · its alternatives →

  16. 16LA
  17. 17
    LUCID▲95

    Visualize GraphQL dataflow, React components & state changes

    2019 · its alternatives →

  18. 18
    Agen▲138

    AI changed the way we code, but we're still using the old processes, and we've become the bottleneck, the AI is waiting for us - to reply, to open our laptops, to review the code, and so on. We're building the future of AI software development. The agents are autonomous, they run in sandboxes, automatically fix the pipelines, and deliver you the final, working code. You can use live preview to see the changes they made. Working across multiple repositories, all within the same session. This is the future - you don't need an IDE, and you don't have to run anything locally.

    Mar 2026 · agenhq.com · its alternatives →

  19. 19

    Hi HN folks, I'm a co-creator of the Dapr CNCF project and co-founder of Diagrid. Today we announced a free-to-use web app that takes any form of workflow diagram (UML, BPMN, scribble in your favorite drawing tool or even on paper) and generates code that runs in any IDE and that can be deployed to Kubernetes and other container based systems, based on Dapr's durable execution workflow engine. This essentially allows you to run durable workflows in minutes and leaves out the guesswork for how to structure, code and optimize a code-first workflow app. I'm happy for you to give this a try and…

    2025 · workflows.diagrid.io · its alternatives →

  20. 20

    The easiest design tool on the web.

    2015 · marq.com · its alternatives →

  21. 21

    Archsense is a software architecture visualization tool that aims to improve software development processes by providing accurate and up-to-date architecture representations directly from the source code. It helps developers, team leaders, and architecture professionals gain a comprehensive understa

    2023 · archsense.dev · its alternatives →

  22. 22

    Give your agent tools to create beautiful, codebase-aware UI

    Apr 2026 · aidesigner.ai · its alternatives →

  23. 23

    Today we’re releasing a full AI app builder in Srcbook. We released our TypeScript notebook a few months ago (https://news.ycombinator.com/item?id=41291700) and the response was encouraging, but we kept hearing that people wanted to build interactive apps. Today we are releasing just that. You can think of it as an open-source and local version of vercel’s v0. We actually think of it as something in between an IDE and that, because we believe the code matters and don’t shy away from that: you can view and edit the code in a full editor, but prompt your way forward if that's…

    2024 · github.com · its alternatives →

  24. 24
    Amaroad▲71

    Build AI slide decks without leaving your terminal

    Jun 2026 · amaroad.com · 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 →