Dev tools · alternatives · 2026

24 alternatives to Terrastruct

A diagramming tool for systems, like software architecture

Below are 24 products that do a similar job, ranked by how close each is in meaning and then by launch-day votes. Terrastruct launched in 2020; newer entries below may have overtaken it.

1. 1TA
   Terrastruct – A Diagramming Tool for Systems▲187

   2020 · terrastruct.com · its alternatives →

2. 2
   Terrastruct▲132

   The diagramming tool for developers

   2023 · d2lang.com · its alternatives →

3. 3
   Terrastruct▲4

   Visualize software architecture

   2021 · d2lang.com · its alternatives →

4. 4
   Diagrams.net▲216

   Open source technology stack for building diagrams

   2021 · drawio.com · its alternatives →

5. 5
   Diagrams for Mac▲196

   A diagram editor for visualizing structures and processes

   2020 · diagrams.app · its alternatives →

6. 6
   GitDiagram▲342

   GitDiagram is an open-source micro dev-tool that I made this past week Given any public GitHub repository it generates diagrams in Mermaid.js with Claude 3.5 Sonnet I extract information from the file tree and README for details and interactivity (you can click components to be taken to relevant files and directories) Also, you can replace "hub" with "diagram" in any repository URL to access its diagram I created this because I wanted to contribute to open-source projects but quickly realized their codebases are too massive for me to dig through manually, so this helps me get started I do…

   2025 · gitdiagram.com · its alternatives →

7. 7
   the:gist▲299

   Automating Notion shouldn't be expensive and complicated

   2021 · its alternatives →

8. 8
   Plectica▲291

   Easily diagram anything, together

   2019 · plectica.com · its alternatives →

9. 9
   Isoflow▲506

   Create beautiful cloud diagrams in minutes

   2020 · isoflow.io · its alternatives →

10. 10
    Ilograph – interactive architecture diagrams as code▲92

    The web version of Ilograph: interactive multi-perspective system architecture diagrams

    2020 · app.ilograph.com · its alternatives →

11. 11TA
    Terra, a JS framework for cellular automata and biological simulations▲121

    2014 · rileyjshaw.com · its alternatives →

12. 12
    Archfy▲235

    Simple way to visualize your product architecture

    2024 · its alternatives →

13. 13
    GCP Architecture Diagramming Tool▲96

    Visually build and deploy your cloud architecture

    2022 · cloud.google.com · its alternatives →

14. 14SA
    Strukt – a visual shell for tabular data▲191

    2017 · freerobotcollective.com · its alternatives →

15. 15GP
    GitHub project structure visualizer▲141

    2016 · veniversum.github.io · its alternatives →

16. 16
    Programmatically Generate Diagrams for GitHub Readmes▲220

    🧜‍♀️ 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 →

17. 17
    Arcentry▲121

    Map, explain, and monitor cloud infrastructure in one interactive diagram.

    2018 · arcentry.com · its alternatives →

18. 18
    tld▲3

    software architecture and codebase diagramming

    Jun 2026 · tldiagram.com · its alternatives →

19. 19
    Unstruk Data Portal▲69

    Search, visualize and analyze spatial and unstructured data

    2022 · portal.unstruk.ai · its alternatives →

20. 20
    IcePanel▲99

    Explain complex software systems

    2023 · icepanel.io · its alternatives →

21. 21
    GitMap – Interactive map of top 10,000 repos clustered into ecosystems▲79

    2016 · oracleofnj.github.io · its alternatives →

22. 22DA
    Disc, a project visualisation tool for your node/browserify modules▲28

    2013 · hughsk.github.io · its alternatives →

23. 23OD
    OneModel – Diagramming tailor-made for Software Engineers▲98

    OneModel is a diagramming tool tailor-made for software engineers. Create beautiful architecture diagrams quickly and easily. Collaborate with team members on a live canvas. Embed your diagrams in Notion or with IFrames.

    2022 · onemodel.app · its alternatives →

24. 24
    Digger – Open Source Terraform automation and collaboration tool▲91

    Digger is an open source IaC orchestration tool. Digger allows you to run IaC in your existing CI pipeline ⚡️ - GitHub - diggerhq/digger: Digger is an open source IaC orchestration tool. Digger allows you to run IaC in your existing CI pipeline ⚡️

    2023 · github.com · its alternatives →

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 →