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Interactive workbench

Schema Diff Checker

Compare two schemas and summarize table, field, and relationship changes.

What changed between these two schema versions, and is the migration scope obvious to reviewers?

Schema and dataDeterministic logicText + JSON exportchange reviewdb migrationsrelease validation
Open matching Architecto feature

How to use it

  • Set the assumptions on the left until they match the workload you are reviewing.
  • Validate the structured result, metrics, and recommendations before exporting.
  • Copy or export the artifact directly into the design doc, ticket, runbook, or review packet.

What you leave with

  • A human-readable change summary with adds, removals, and updates.
  • Change counts you can drop into release notes and review packets.
  • A compact export suitable for tickets and migration approvals.

Tool inputs

Schema Diff Checker

Compare two DDL or DBML inputs and highlight table, field, and relationship changes.

Shortcut keys: Ctrl/Cmd + Shift + C copies the current output, and Ctrl/Cmd + Shift + S saves a revision snapshot.

Result

Schema diff summary

1 additions, 0 removals, 0 modifications

1 changeschanges detected

Total changes

1

Combined table, field, and relationship changes across the two inputs.

Additions

1

New tables, columns, or constraints introduced in the target schema.

Modifications

0

Changed columns or relationships that need migration review.

Removals

0

Dropped structures that may require data-migration or rollout planning.

Filter line-level matches before you export or share the result.

0 matches0 saved snapshotsSchema change report

Schema change report

1 additions, 0 removals, 0 modifications

- [add] Add column "status" (text) NOT NULL to "users"

FAQ

Questions teams ask before they adopt this workflow.

When should teams use Schema Diff Checker?

This tool is most useful when the team needs a fast, reviewable answer before moving into a larger design, documentation, or governance workflow.

Who usually benefits most from Schema Diff Checker?

Architects, platform teams, and technical leads get the most value because they need a clear artifact they can copy into reviews, runbooks, tickets, and stakeholder updates.

How does Schema Diff Checker connect back to Architecto?

The free surface reduces friction. Once the team needs richer diagrams, review automation, or documentation outputs, the matching Architecto feature takes over without changing the workflow language.

Related workflow paths

Keep moving with the next tool, guide, or product module.

Continue in Architecto

Use the exported artifact from Schema Diff Checker as the first review input, then move into Architecture Diff when the team needs a deeper design, diagram, or review workflow.

Open matching module

Related modules

Schema Diff Checker | Architecto