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Life & fun · alternatives · 2026

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UML2 SP is a UML profile designed for creating object-oriented simulation models in scientific research. Built as a streamlined version of the standard Unified Process profile, it supports use-case, analysis, and… Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. UML2 SP: Object-oriented simulation language launched in 2018; newer entries below may have overtaken it.

  1. 1

    A collaborative UML editor; build with etherpad and plantuml - AlexITC/collabuml

    2023 · github.com · its alternatives →

  2. 2

    TAKTIK88 menghadirkan perpaduan strategi, gaya bermain, dan nuansa sultan paling prestisius. Temukan informasi menarik, inspirasi taktik, serta pengalaman digital berkelas dalam satu tempat.

    2020 · collabuml.com · its alternatives →

  3. 3

    Hi, clang-uml is an open-source C++ to UML diagram generator, driven by YAML configuration files. The main idea behind the project is to easily maintain up-to-date diagrams within a code-base or document legacy code. The configuration file for clang-uml defines the types and contents of each generated diagram. The diagrams can be currently generated in PlantUML and JSON formats. Main features: - class, sequence, package and include diagrams - up to C++17 with support for C++20 concepts - visualization of template specialization relationships - declarative diagram content filtering based on…

    2023 · github.com · its alternatives →

  4. 4QS

    2013 · app.umlbin.com · its alternatives →

  5. 5

    The Modeling Language to rule them all

    2017 · oreilly.com · its alternatives →

  6. 6

    A lightweight UML class designer

    2022 · umlboard.com · its alternatives →

  7. 7

    MoE vision-language, now easier to access

    2025 · github.com · its alternatives →

  8. 8
    OnUml▲13

    AI-powered UML diagram generator for free

    2025 · onuml.com · its alternatives →

  9. 9

    The programming language for agents. Contribute to BoundaryML/baml development by creating an account on GitHub.

    2024 · github.com · its alternatives →

  10. 10

    Super simple design, prototyping and collaboration

    2016 · marvelapp.com · its alternatives →

  11. 11

    Hi HN, I built MOL, a domain-specific language for AI pipelines. The main idea: the pipe operator |> automatically generates execution traces — showing timing, types, and data at each step. No logging, no print debugging. Example: let index be doc |> chunk(512) |> embed("model-v1") |> store("kb") This auto-prints a trace table with each step's execution time and output type. Elixir and F# have |> but neither auto-traces. Other features: - 12 built-in domain types (Document, Chunk, Embedding, VectorStore, Thought, Memory, Node) - Guard assertions: `guard answer.confidence > 0.5 : "Too low"` -…

    Feb 2026 · github.com · its alternatives →

  12. 12
    RAML 1.0▲260

    The simplest way to design APIs

    2015 · raml.org · its alternatives →

  13. 13

    🧜‍♀️ RESTful rendering pipeline for generating sequence and UML diagrams using Mermaid for Markdown docs (Diagrams as a Service) - Schachte/Mermrender

    2019 · github.com · its alternatives →

  14. 14

    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 →

  15. 15

    Create beautiful user flow charts, sitemaps and wireframes

    2020 · antforfigma.com · its alternatives →

  16. 16OO

    Hi! One of the creators here. Very proud to finally be able to show you what we've been working on for over a year now. Curious to hear your thoughts! Objectiv is open-source (APLv2) product analytics infrastructure. It's built around a generic but strict event taxonomy, open/common data- and infra tools (currently PG, snowplow, working on bigquery with more to come), and the analyses are done using our pandas-like, SQL speaking modeling library called Bach. As a result, we’re moving towards a vision wherein models can be shared openly, independent of product, platform[1] or data…

    2022 · objectiv.io · its alternatives →

  17. 17

    I spent the past 2 weeks making this toy programming language. I basically forked the Go scanner/parser, and changed the syntax to have functions return a single value. This enable proper Result/Option type to be used as well as propagating errors with an operator. I also wanted to have short "type inferred" anonymous functions to be able to use functions like Map/Reduce/Filter, without having to use 100 characters to specify the types.

    2025 · github.com · its alternatives →

  18. 18

    Create diagrams without touching your mouse. Generate informal, class, sequence, state, gantt, user journey or entity-relationship diagrams using only the keyboard.

    2021 · gleek.io · its alternatives →

  19. 19DS
  20. 20

    UML model and code examples of design patterns for Crystal. The model is created with Astah. - takaakit/design-pattern-examples-in-crystal

    2021 · github.com · its alternatives →

  21. 21

    A practical guide to object oriented design

    2016 · sandimetz.com · its alternatives →

  22. 22
    RAML▲62

    A Standard for API modeling, documentation and exploration

    2014 · raml.org · its alternatives →

  23. 23

    A minimalist type-inferred programming language with procedural macro support - murisi/L2

    2017 · github.com · its alternatives →

  24. 24

    From English prompt to deployed ML model with human approval

    Jun 2026 · orchestra-ml.vercel.app · 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 →