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TALA Layout Engine for D2 Diagrams Goes Open-Source

MonitoringAI & TechOtherFirst tracked 2026-09-08Last changed 2026-09-08

Current outcome

Terrastruct's TALA layout engine, optimized for D2 software architecture diagrams, has been open-sourced. Previously a separate commercial and proprietary component, TALA is now available on GitHub and can be activated via the D2_LAYOUT environment variable. D2 users previously had to pay for or skip TALA, despite many finding its output markedly better than D2's default layout or ELK. Open-sourcing makes this layout engine freely available to the community and invites outside contributions, which could accelerate its improvement and broaden adoption. TALA is a separate install from D2, preserving D2 itself as fully free and open-source software, and it is invoked by setting the D2_LAYOUT environment variable rather than being the default renderer. It powers all diagrams in D2 Studio, and Terrastruct invites users to file bugs and feature requests as GitHub issues.

Progress timeline

1 material updates
  1. #01
    Initial2026-09-07 23:37 · publication time

    TALA Layout Engine for D2 Diagrams Goes Open-Source

    Terrastruct's TALA layout engine, optimized for D2 software architecture diagrams, has been open-sourced. Previously a separate commercial and proprietary component, TALA is now available on GitHub and can be activated via the D2_LAYOUT environment variable. D2 users previously had to pay for or skip TALA, despite many finding its output markedly better than D2's default layout or ELK. Open-sourcing makes this layout engine freely available to the community and invites outside contributions, which could accelerate its improvement and broaden adoption. TALA is a separate install from D2, preserving D2 itself as fully free and open-source software, and it is invoked by setting the D2_LAYOUT environment variable rather than being the default renderer. It powers all diagrams in D2 Studio, and Terrastruct invites users to file bugs and feature requests as GitHub issues.

    Source evidence: alixanderwang

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