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Merlay

visualstudio.comDiagramming & whiteboards

No liveness check has reached it yet; it is registered on the VS Code Marketplace and has been in the index since 23 Sep 2026. How this is checked

Merlay is a Visual Studio Code extension for editing Mermaid diagrams through a visual overlay interface. It supports Mermaid-based flowcharts and diagram workflows alongside Markdown, helping developers and technical writers modify diagrams without relying solely on source syntax.

Inferred · not functionally tested

FreeWebWindowsmacOSLinux
Visit visualstudio.com

Overview

5 features

Purpose: Helps developers edit Mermaid diagrams visually instead of writing all diagram syntax manually.

Inferred · not functionally tested

Audience: developers and technical writers using Mermaid in VS Code

Inferred · not functionally tested

Functions: collaboration

Inferred · not functionally tested

Interfaces: API: unknown · MCP: unknown · CLI: unknown · Self-hosting: unknown

Recorded constraints: pricing: free · license: Proprietary · platforms: WEB · deployment: browser, windows, macos, linux

Constraint provenance is unknown; confirm requirements with the publisher.

Record sources: unknown.

Merlay is a Diagramming & whiteboards project. Inferred · not functionally tested: It helps developers edit Mermaid diagrams visually instead of writing all diagram syntax manually. Inferred · not functionally tested: Merlay is a B2B product aimed at developers and technical writers using Mermaid in VS Code. Basis unknown · not verified: Merlay is free to use. Basis unknown · not verified: It ships for the web, Windows, macOS, and Linux.

Behind Merlay is dev-hashemi, and it first shipped in 2026. Inferred · not functionally tested: Among its 5 catalogued features are visual diagram editing, mermaid support, and overlay editing.

Summary written by a language model from the project’s public pages.

Tasks: Inferred · not functionally tested

  • Visual diagram editing
  • Mermaid support
  • Overlay editing
  • Flowcharts
  • Markdown integration

Topics: Inferred · not functionally tested

Tags
mermaid-editordiagram-overlaysflowchart-authoringvscode-extension

JSON profile · Text profile · Access guide

Built with & integrations

Runs on
BrowserWindowsmacOSLinux

Trust & compliance

Public signals
HTTPSFree tierStore listing found

Indexing history

1

What PulseGate has recorded for this listing

  1. Indexed22 Sep · 22:51 UTC
    Merlay seen via VS Code Marketplace
    Source: VS Code Marketplace · Open

Frequently asked questions about Merlay

What is Merlay?
Inferred · not functionally tested: Merlay helps developers edit Mermaid diagrams visually instead of writing all diagram syntax manually. It is catalogued under Diagramming & whiteboards on PulseGate.
Who is Merlay for?
Inferred · not functionally tested: Merlay is a B2B product built for developers and technical writers using Mermaid in VS Code.
Is Merlay free?
Basis unknown · not verified: Yes — Merlay is free to use.
What platforms does Merlay run on?
Basis unknown · not verified: Merlay runs on the web, Windows, macOS, and Linux.
Is Merlay still maintained?
Unverified. Merlay 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 are alternatives to Merlay?
Similar projects tracked by PulseGate include Mermaid Graphical Editor, Mermaid Editor, and Mermaid Visualizer.Mermaid Graphical EditorMermaid EditorMermaid Visualizer
Who develops Merlay?
Merlay is developed by dev-hashemi.
How long has Merlay been around?
Merlay first shipped in 2026.

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