DB Planner vs dbdiagram.io
Both tools render DBML as entity relationship diagrams. The difference is what happens when your schema grows and your team grows with it: DB Planner is built around modular multi-file schemas, code export, and collaboration that does not sit behind a premium tier. Here is the honest feature-by-feature picture, including where dbdiagram.io wins, as of July 2026.
| Feature | DB Planner | dbdiagram.io |
|---|---|---|
| DBML as the schema source of truth | Yes | Yes |
| Multi-file schemas | Yes, references resolve across every file in a project with no import lines needed | No, one DBML file per diagram |
| Real-time collaboration | Included on team plans at $5 per seat | Limited on Personal Pro, full workspace on Team |
| Organizations and roles | Owner, admin, and member org roles, plus editor and viewer roles per project | Shared team workspace on the Team plan |
| SQL import | Postgres, MySQL, and MSSQL | Postgres, MySQL, MSSQL, Oracle, and Snowflake |
| Code export | C# models (EF annotations or POCO), SQL for three dialects with compatibility warnings, DBML | SQL and images, no C# models |
| Notes on the canvas | Seven-color draggable, resizable sticky notes, plus markdown table and column notes written in the DBML | Sticky notes and plain-text notes |
| Built-in DBML editor | CodeMirror with syntax highlighting, in-editor find, and parse errors with line numbers | Yes |
| Price for a team of three | $15 per month | $100 per month (Team plan, three licenses included) |
When dbdiagram.io is enough
For a solo developer sketching a small schema, dbdiagram.io is quick and pleasant, and its DBML syntax is the same language DB Planner speaks. Diagrams port between the two easily.
When teams switch to DB Planner
The switch usually happens for one of three reasons: the schema outgrew a single file, the team wants real-time editing without a $100 per month team tier, or the schema needs to leave the board as code. DB Planner handles all three: a schema can span as many DBML files as it needs, with references resolving between them automatically, collaboration is included at $5 per seat, and exports generate C# models, dialect-checked SQL, and DBML.
What the two cost
As of July 2026, dbdiagram.io Personal Pro is $14 per month, and the Team plan, which is where the collaborative workspace lives, is $100 per month with three user licenses included and $7 per month for each one after that. DB Planner Pro is $5 per month, with organization seats at $5 each, so a three-person team pays $15 per month and a fourth person costs $5 rather than $7.
Those are monthly rates on both sides. dbdiagram.io discounts annual billing to $8 and $75 per month; DB Planner bills monthly. See the full DB Planner pricing breakdown.
Want the wider landscape? Read our roundup of dbdiagram.io alternatives, or see the full DB Planner feature list.
Questions people ask about switching
Can I import my dbdiagram.io schema into DB Planner?
Yes. Both tools use DBML, so you can paste a dbdiagram.io file straight in. Files containing dbdiagram-style use * from './file' lines work as they are: those lines are recognized and ignored, because DB Planner resolves every file in a project together and does not need them.
What can DB Planner do that dbdiagram.io cannot?
Modular schemas split across multiple DBML files with references resolving between them and no import lines to maintain, export to C# model classes as well as SQL and DBML, and markdown notes attached to individual columns.
Which is cheaper for a small team?
DB Planner, for a team of three: $15 per month, billed as $5 for the owner’s Pro plan plus $5 per additional seat. dbdiagram.io puts collaborative work on a higher tier. Both figures are monthly rates; dbdiagram.io discounts annual billing.
Is dbdiagram.io still the better choice for some people?
Yes. For a single person sketching one diagram that fits comfortably in a single file, dbdiagram.io is a mature tool that does that well and needs no account setup. The reasons to switch are team size, schema size, and export needs.