Should I vibe code
Collaborative diagrams, whiteboards, databases, and project planning
A whiteboard whose shapes carry fields is a database with a canvas on top. That is two products, not one.
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Their verdict, the Starter price and the build-time estimate come from their entry, MIT-licensed. Checked 2026-08-04.
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Our verdict, the regret score and everything below it. Editorial and unsponsored — nobody can pay to be moved.
The honest answer
why the verdict is what it is
The canvas is not the hard part and has not been for years — sit on tldraw or Excalidraw and you have shapes, selection, zoom and connectors by Saturday lunchtime. Creately's actual pitch is stranger than that. Its shapes carry structured fields, and the same items show up again as a table, a kanban board and a timeline, which means the product is a small database wearing a whiteboard. Rebuild it and you inherit two problems at once: the document model for concurrent editing, which you choose on day one whether you notice or not, and a schema layer where a card is simultaneously a rectangle at some coordinates and a row with a status and an owner. Neither is dangerous. Both are the kind of work that eats months and never announces itself in a demo. Build the canvas, enjoy it, and take the second editor seriously as the moment the project changes species.
What actually breaks
not "if". the specific failures.
- The moment a shape has fields. A rectangle is a position; a task is a row with an owner and a status, and now every edit is two writes that must not disagree
- The second view. Once a kanban board and a canvas render the same item, moving a card in one has to move something in the other, and "which one is the truth" is a question you answer badly at first
- Concurrent editing, which last-write-wins survives right up until two people are in the same board and one of them silently loses an afternoon
- Undo across views, because reversing a drag on the canvas and reversing a status change on the board are not the same operation and users think they are
- Big boards. Six hundred shapes with attached records, a trackpad, and a renderer that redraws everything on pointer move
- Export, which is where a whiteboard-database really shows itself: a PNG loses the data, a CSV loses the layout, and only your own JSON has both
- Shape libraries. Creately ships thousands of stencils across UML, BPMN, network and org charts, and that is a content backlog rather than an engineering one
Is that you?
the verdict is a default, not a law
- It is a personal canvas for your own thinking and nobody else opens it
- The diagrams are generated from text in version control — Mermaid, D2, Graphviz — and your tool is a renderer rather than a store
- You need one specific view of your own data and you build exactly that, instead of a general whiteboard that happens to have fields
- A team's project plan would live in it in a format only your renderer can read
- Two people will edit one board and you have not chosen a document model
- The boards would be the only copy of anything, because a canvas tool with no export is a data-loss story with rounded corners
- You are attracted to the stencil libraries, which are years of drawing work and none of it is code
If you build it anyway
the checklist, then the prompt that enforces it
- Decide the document model before the first shape — a CRDT such as Yjs or Automerge, or explicitly single-editor with a lock. Deferring this is choosing last-write-wins by accident.
- Separate the record from the rendering. An item's data and an item's geometry are different concerns and want different tables, or you will never be able to add the second view.
- Build on tldraw or Excalidraw rather than writing hit-testing, selection and pan-zoom yourself. Those are weeks of work and theirs already feels better than yours will.
- Ship export before the editor: SVG for the picture, versioned JSON for the structure, CSV for the records, with a test that reloads an export into an identical board.
- Persist on change, not on save. Whiteboards get closed by a crashed tab, never by a save button.
- Connectors bind to anchors on shapes, never to coordinates, and reroute when a shape moves.
- Default sharing to private and make "anyone with the link" a deliberate two-step action, because these boards hold roadmaps and org charts.
- Cap the shapes per board with a visible warning rather than letting a large board become a frozen tab and a support conversation.
I am building a collaborative whiteboard where shapes also carry structured data and appear in board and table views. Constrain this before the fun part.
1. Answer first: will two people ever edit one board at the same time? If yes, pick the
document model now — Yjs, Automerge or explicit locking — and build on it. If I say
"collaboration later", tell me that is a rewrite rather than a feature.
2. Model the item and its geometry separately from the start. Data on one side, position and
styling on the other, joined by a stable id. If you inline the fields into the shape,
the second view will be impossible without a migration.
3. Pick one source of truth per attribute and write it down. When a card moves on the kanban
board, exactly one write happens and the canvas re-reads it. No two-way sync between
views.
4. Build export before the editor. SVG for the picture, versioned JSON for the whole board,
CSV for the records. Write a test that reloads an exported file into an identical board
and fails loudly if it does not.
5. Use tldraw or Excalidraw as the canvas foundation. Do not write pointer maths, hit
testing, selection or zoom from scratch. If I ask for a custom canvas, push back with an
estimate.
6. Persist on change through a local buffer, not on a save button. Then show me what happens
when the tab dies mid-drag.
7. Undo is per-user and scoped to that user's own operations, and it must behave sensibly
when the operation was a field edit rather than a drag.
8. Connectors attach to anchors and reroute on move. Show me a box dragged across two other
boxes before you show me any theming.
9. Sharing defaults to private. "Anyone with the link" is two deliberate clicks with a
visible warning — these boards hold roadmaps.
10. Enforce a shape budget per board with a warning at the threshold instead of letting the
tab freeze.
11. Deliberately out of scope: shape libraries for UML and BPMN, presence avatars, comments,
version history, timeline and Gantt views, AI generation. Put them in the README.
12. Finish by telling me which of these you skipped and what Creately charges per user to
have already solved them.That one keeps you out of trouble. For the prompt that actually builds it, canivibecodeit.com has one.
their build prompt ↗Or don’t build it
the boring option, and the way back out
There is a second editor, or the boards are load-bearing for a team that did not choose your code. Eight dollars a user is a genuinely cheap way to not own a distributed-systems problem, and the stencil libraries alone represent more drawing than you will ever do. Buy it especially if what attracted you was the data layer, because that is the part where a homemade version quietly becomes a worse Notion with worse sync.
$8/mo is cheaper than your weekend.
Three artefacts per board, written by the app itself and testable: an SVG that renders anywhere, a versioned JSON that round-trips into an identical board, and a CSV of whatever structured records the shapes carry. If all three exist and the reload test passes, shutting down is a zip file. The stronger version of the same idea is to keep the source of truth as text — diagrams as Mermaid or D2 in the repo, records in a real database — so the canvas is a view rather than a store and can be thrown away without asking anyone's permission.
Infinite-canvas SDK with selection, undo and multiplayer semantics already worked out, though the licence wants a watermark or a paid key.
Open-source whiteboard with shapes, collaboration and export to PNG or SVG, and a good place to start if you only need the canvas.
Long-running open-source diagram editor with the enormous stencil libraries that make this category expensive to reproduce.
Questions
Is this just the Whimsical entry again?
The multiplayer half is, and the advice there holds: pick a document model on day one or accept a rewrite. What Creately adds is the data layer — shapes carrying fields that also appear as tables and boards — and that is a separate build with its own trap. It is the difference between drawing a process and modelling it, and modelling it means you now own a schema, a migration story and the question of which view wins.
Where does a homemade version actually beat the product?
When the diagram is generated rather than drawn. If your architecture, your org chart or your workflow already exists as data somewhere, rendering it on a canvas you control is genuinely better than maintaining the same picture by hand in a subscription tool — and it stays correct on its own. The homemade version loses the moment a human is expected to drag things around collaboratively.
Every week, someone ships something they shouldn’t have.
New verdicts, the worst thing that landed in the trap, and the occasional incident report. No other email, ever.
Multiplayer is not a feature you bolt on later. It is a document model, and you picked one on day one.
Boxes and arrows is an afternoon. Arrows that stay attached when you move the box is a career.
Fourteen people in a live workshop is not a feature called multiplayer. It is a distributed system with an audience.
last reviewed 2026-08-04 · verdict is editorial and unsponsored · shared entry data from canivibecodeit under MIT · not legal advice