Convert DBML table definitions and refs into a Mermaid ER diagram.
Move this preview into a nearby workflow for conversion, debugging, or export.
Convert DBML table definitions and refs into a Mermaid ER diagram.
No. The tool page can be used directly in the browser.
Clear table names, primary keys, Ref lines, and table groups make the ER diagram easier to read and review.
Use a focused subset when writing documentation. Full schemas are better for internal review after removing private names or sensitive comments.
DBML to ER Diagram converts Database Markup Language table definitions and refs into Mermaid ER diagrams for schema documentation and review.
It helps backend and product teams discuss relationships, cardinality, join tables, nullable refs, and tenant boundaries without reading every DBML line.
Use it for focused schema sections, AI-generated DBML validation, and onboarding docs where a visual data model is easier to scan.
DBML is already readable, but an ER preview helps product and backend reviewers see table relationships, ownership, and join tables faster.
Table users { id int [pk] email varchar }
Table orders { id int [pk] user_id int }
Ref: orders.user_id > users.idThe diagram should help reviewers ask whether a relationship is one-to-one, one-to-many, or many-to-many, and whether the table design supports the product rule.
Table memberships { user_id int org_id int role varchar }
Ref: memberships.user_id > users.id
Ref: memberships.org_id > organizations.idDBML diagrams are useful outside pure database review. They help product and platform teams see which entity owns a relationship and where tenant or account boundaries appear.
Table accounts { id int [pk] }
Table projects { id int [pk] account_id int }
Table project_members { project_id int user_id int role varchar }
Ref: projects.account_id > accounts.idUse DBML to ER 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 DBML table definitions and refs into a Mermaid ER 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.
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.
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.