DiagramGPT

Modality: Text, Image, Code
Last Updated: March 6, 2026
Pricing: Freemium, Paid options from Free tier available, Billing frequency: Monthly
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Overview

DiagramGPT by Eraser is an AI tool powered by OpenAI's GPT-4 that generates professional technical diagrams, including entity relationship diagrams (ERDs), cloud architecture diagrams, sequence diagrams, flowcharts, and BPMN, from plain language prompts or code snippets. It outputs editable diagram-as-code, which users can refine in the Eraser whiteboard platform designed for engineering teams, supporting features like real-time collaboration, GitHub integration, VS Code extensions, and exports in PNG, SVG, PDF, and markdown formats. Ideal for architecture planning, whiteboard interviews, documentation, wireframing, brainstorming, and system design visualization, it offers a free sandbox for quick starts and paid plans via Eraser for advanced use.

Pros & Cons

Pros

  • Generates technical diagrams quickly from plain language or code
  • Supports multiple diagram types including ERDs, cloud architecture, and sequence diagrams
  • Outputs fully editable diagram-as-code format
  • Integrated with Eraser for collaboration and editing
  • Useful for whiteboard interviews, documentation, and brainstorming
  • GitHub integration and VS Code extension for developer workflows
  • Free sandbox available without login

Cons

  • Limited to specific diagram types currently
  • Depends on Eraser tool for full editing capabilities
  • Requires learning new diagram-as-code syntax
  • No offline mode mentioned
  • Limited integration options beyond GitHub and VS Code
  • Not all features fully released or optimized
  • Proprietary tool, not open source
  • Potential improvements needed for accuracy and customization
Q&A
What is DiagramGPT by Eraser? +

DiagramGPT by Eraser is an AI tool developed for generating technical diagrams. It uses user inputs provided in code or plain language to generate diagrams in a diagram-as-code format. The tool employs OpenAI's GPT-4 to classify user input and generate diagrams.

What types of diagrams can DiagramGPT currently draw? +

DiagramGPT currently can draw entity relationship diagrams, cloud architecture diagrams, sequence diagrams, flowcharts, and BPMN diagrams.

How can I edit diagrams generated by DiagramGPT? +

You can edit diagrams generated by DiagramGPT using Eraser, a docs and diagram tool built specially for engineering teams. Once you click on 'Save and Edit Diagram', you can modify the diagrams using Eraser's diagram-as-code syntax.

What are some use cases of DiagramGPT? +

DiagramGPT can be used in several scenarios such as architecture diagrams, whiteboard interviews, documentation, wireframing, and brainstorming.

How does DiagramGPT classify user input? +

DiagramGPT applies the technology of GPT-4 to classify user inputs. Upon receiving an input, it uses this AI technology to determine the type of diagram that best fits the input description.

What resources and integrations does Eraser provide for DiagramGPT users? +

Eraser provides a gallery of resources, templates, integrations like GitHub and VS Code, and design resources through designDocs.dev.

Can I get early product or API access to DiagramGPT? +

Yes, early product or API access to DiagramGPT can be requested via the website.

How can DiagramGPT be used in whiteboard interviews? +

DiagramGPT can be utilized in whiteboard interviews by generating technical diagrams based on the provided prompts, allowing for detailed visualization of ideas and systems.

What benefits can engineering teams get from using DiagramGPT? +

Engineering teams can benefit from generating technical diagrams efficiently for architecture, documentation, and brainstorming, saving time and boosting productivity.

How can I share my feedback about DiagramGPT? +

You can share feedback via email at [email protected] or [email protected], Twitter @eraserlabs, or the Slack community.

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