D2 provides Visual Studio Code support for authoring and previewing D2 diagram files. It is catalogued under Diagramming & whiteboards on PulseGate.

D2 is a B2B2C product built for developers and technical writers using Visual Studio Code.

What platforms does D2 run on?

D2 runs on the web, Windows, macOS, and Linux.

Is D2 still maintained?

Unverified. D2 has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.

What projects are similar to D2?

Similar projects tracked by PulseGate include Ideamerit Designer, Histogram Maker, and Venn Diagram Shader.

D2 is developed by Terrastruct.

Back to the index

D2

Name: D2
Author: Terrastruct

visualstudio.comDiagramming & whiteboards

The D2 Visual Studio Code extension adds language support for .d2 files, including syntax highlighting, diagram-related keybindings, Markdown injection, and themes. It helps developers and technical writers create D2 diagrams within VS Code.

FreeWebWindowsmacOSLinux

Visit visualstudio.com

Overview

5 features

D2 sits in PulseGate's Diagramming & whiteboards category. It provides Visual Studio Code support for authoring and previewing D2 diagram files. It is built as a B2B2C product for developers and technical writers using Visual Studio Code. It is available for free. It runs on the web, Windows, macOS, and Linux.

Behind D2 is Terrastruct, and it first shipped in 2022. Key capabilities include D2 Syntax Highlighting, Diagram Preview, and Markdown Injection.

D2 Syntax Highlighting
Diagram Preview
Markdown Injection
Keybindings
Color Themes

Built with & integrations

Runs on

BrowserWindowsmacOSLinux

Trust & compliance

Verified signals

HTTPSFree tierStore-verified publisher

Indexing history

What PulseGate has recorded for this listing

Indexed27 Aug · 09:52 UTC
D2 verified against its public source
Source: PulseGate · Open

Frequently asked questions about D2

What is D2?: D2 provides Visual Studio Code support for authoring and previewing D2 diagram files. It is catalogued under Diagramming & whiteboards on PulseGate.
Who is D2 for?: D2 is a B2B2C product built for developers and technical writers using Visual Studio Code.
Does D2 have a free plan?: Yes — D2 is free to use.
What platforms does D2 run on?: D2 runs on the web, Windows, macOS, and Linux.
Is D2 still maintained?: Unverified. D2 has not been re-checked since it entered the index, so there is no finding either way — and only a positive finding would say otherwise.
What projects are similar to D2?: Similar projects tracked by PulseGate include Ideamerit Designer, Histogram Maker, and Venn Diagram Shader.Ideamerit Designer Histogram Maker Venn Diagram Shader
Who develops D2?: D2 is developed by Terrastruct.
When did D2 launch?: D2 first shipped in 2022.

At a glance

Platforms: Web
Languages: English
Built for: developers and technical writers using Visual Studio Code
Model: B2B2C
Solves: Provides Visual Studio Code support for authoring and previewing D2 diagram files.

Registered as

VS Code Marketplace: terrastruct.d2

Developer

Terrastruct

Index record

Identity confidence: High · 91.5
Indexed: 27 Aug 2026
Lifecycle: Alive
Last seen: 27 Aug 2026

Identity audit (12)

Slug: d2-visualstudio-com
Lifecycle state recorded: 27 Aug 2026
Verification state: Indexed for public listing
Listing state: Listed: yes
Index status: Included in index
Latest evidence snapshot: 27 Aug 2026
Timeline basis: Indexed-at chronology. This listing's first-seen date was written by the catalog backfill, not observed here, so it is not treated as a sighting.
Name from: Derived from the project's own page and URL.
Category from: Assigned by a language model.
Languages from: Detected by a language model from page content.
Last updated: 27 Aug 2026
Canonical URL: https://marketplace.visualstudio.com/items?itemName=terrastruct.d2

Ship this? Send a correction — no account, and you get a link to follow it.

Also in Diagramming & whiteboards

Same category — not a similarity match