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Schema Visualizer vs ToDiagram

Focuses on visualising API schemas, while ToDiagram handles arbitrary JSON/YAML/CSV data and offers AI drafting.
Schema VisualizerVisualize your data schema and APIsToDiagramTransform data to diagrams

Side by side

What it is
Schema Visualizer:Schema Visualizer creates interactive diagrams of JSON, XML, Proto, GraphQL, Prisma and OpenAPI schemas with real-time collaboration.
ToDiagram:ToDiagram turns JSON, YAML, CSV, XML and Mermaid data into interactive diagrams you can edit, search and export.
Best for
Schema Visualizer:Collaborative schema diagrams with GitHub sync
ToDiagram:Instant visualisation of messy data
Who it’s for
Schema Visualizer:Developers, architects, analysts and teams needing visual schema documentation.
ToDiagram:Developers, data teams, designers and anyone who works with structured data.
Pricing
Schema Visualizer:Freemium
ToDiagram:Freemium
Plans
Schema Visualizer:Community 0€/user/month · Pro 5€/user/month
ToDiagram:Free $0 · Pro $10/ month per month · Teams $12/ month per person per month per person
Works with
Schema Visualizer:GitHub, Hubql CLI
ToDiagram:Chrome Extension
DevHunt upvotes
Schema Visualizer:17
ToDiagram:2
Launched on DevHunt
Schema Visualizer:Apr 2024
ToDiagram:Jul 2025

Schema Visualizer features

  • Auto diagram generation. Generate visual diagrams from JSON, XML, Proto, GraphQL, Prisma and OpenAPI files automatically.
  • Real-time collaboration. Co-create, discuss and share schema diagrams with team members and external partners.
  • Markdown documentation. Add markdown notes to diagrams to keep documentation up-to-date with code changes.
  • GitHub two-way sync. Connect repositories via the Hubql GitHub app to push and pull schema changes.
  • CLI preview links. Use the Hubql CLI to generate preview links for data models and APIs locally.
  • Workspace limits. Community plan limits to 1 workspace editor and 150 lines per file; Pro lifts those limits.
Schema Visualizer on DevHunt →Alternatives

ToDiagram features

  • Live data-to-diagram. Paste JSON, CSV, YAML, XML or Mermaid and see an auto-generated graph rendered in the browser.
  • Two-way sync editing. Edit the diagram to update the source data and edit the data to redraw the diagram instantly.
  • Fuzzy search. Search keys, values or paths in large payloads and highlight matching nodes.
  • AI Copilot. Describe a system in plain text and get a draft diagram that you can edit immediately.
  • Export options. Download diagrams as PNG, JPEG, SVG or animated high-res images.
  • MCP integration. Connect to Claude, Cursor, VS Code and other MCP-compatible agents to generate diagrams on demand.
  • Custom themes. Swap palettes for nodes, edges and backgrounds with a single click.
  • JSON Schema validation. Attach a schema to get real-time validation errors highlighted on the diagram.
ToDiagram on DevHunt →Alternatives

Based on each tool's website and DevHunt data. Details may change; check the official sites.