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Prisma Schema Diagram

Convert Prisma model blocks into an ER-style schema diagram.

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Move this preview into a nearby workflow for conversion, debugging, or export.

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How to use

  1. 1Paste source or load a sample.
  2. 2Review the rendered preview or structured output.
  3. 3Copy code, export images, or download generated files.

Common use cases

AI-generated diagram validationDeveloper docs and README workflowsArchitecture, monitoring, and config review

Related tools

SQL to ER Diagram

Convert CREATE TABLE SQL into a Mermaid ER diagram.

JSON Schema Visualizer

Inspect JSON Schema properties, types, required fields, and composition groups.

JSON Schema Form Preview

Turn JSON Schema properties, required fields, enums, and formats into a form preview.

FAQ

What is Prisma Schema Diagram for?

Convert Prisma model blocks into an ER-style schema diagram.

Does it require an account?

No. The tool page can be used directly in the browser.

Prisma Schema Diagram is designed for developer documentation, AI-generated diagram validation, and engineering configuration visualization.

It helps convert source text, config, or AI output into a previewable and exportable result.

Demo: visualize Prisma models for review

Prisma models contain fields, relations, indexes, and enum choices. A diagram helps teams inspect domain shape before migrations are generated.

  • Check @relation fields and foreign keys together.
  • Review @@unique and @@index near the model they protect.
  • Use the diagram to explain model relationships to frontend and product teams.
model User {
  id Int @id @default(autoincrement())
  email String @unique
  posts Post[]
}
model Post {
  id Int @id
  author User @relation(fields: [authorId], references: [id])
  authorId Int
}

Migration checklist: diagrams do not replace Prisma migrate

The visual preview helps explain schema intent, but migration safety still depends on generated SQL, existing data, and rollout strategy.

  • Review required field additions against existing rows.
  • Check relation deletes and cascade behavior.
  • Compare the diagram with migration SQL before production rollout.
npx prisma migrate diff
npx prisma migrate dev
npx prisma generate

Review checklist for Prisma Schema Diagram

Use Prisma Schema Diagram when you need to inspect source content visually before it becomes documentation, a pull request note, an incident write-up, or a handoff artifact. Convert Prisma model blocks into an ER-style schema diagram.

Before exporting, check that labels are readable, relationships match the source, generated examples do not contain private data, and the preview still makes sense after you edit the input.

Limits and troubleshooting

If the preview fails, reduce the input to the smallest complete example, confirm the format syntax, and then add sections back one at a time. Many rendering failures come from partial files, indentation mistakes, missing diagram headers, or copied snippets that depend on hidden context.

Treat the preview as a review surface rather than a source of truth. Generated diagrams, converted files, dashboards, and rule examples should be checked before they are used in production documentation or operations.

Example inputs to test

  • Blog: model User { id Int @id email String posts Post[] } model Post { id Int @id title String author User @relation(fields: [authorId], references: [id]) authorId Int }
  • Shop: model Product { id Int @id name String orders Order[] } model Order { id Int @id product Product @relation(fields: [productId], references: [id]) productId Int }
  • Auth: model User { id Int @id email String sessions Session[] } model Session { id Int @id user User @relation(fields: [userId], references: [id]) userId Int }

Tool maturity

Advanced preview

Advanced parser

This tool extracts useful structure and relationships from developer input. Complex edge cases should still be checked against the source.

The maturity label is not a quality score. It tells visitors whether the tool is best for stable export, deeper debugging, quick parsing, or AI-assisted generation.