AI diagram generator
One AI diagram generator for every kind of diagram.
Builderii’s AI draws nine kinds of diagram from a prompt and changes the ones already on your board. It decides what goes in; Builderii’s layout engines decide where, so every diagram comes out tidy and editable.
Works in your browser · No card · Free while it’s new
What you get
Every diagram your team draws.
Sequence diagrams
Actors, services and databases with lifelines and sync, async and reply messages.
Sitemaps
A page tree with each page’s sections, from the home page down.
Database diagrams
Tables with typed columns and keys, joined from each foreign key. Paste SQL or Prisma; export CREATE TABLE.
Roadmaps
Lanes, dated bars, milestones, dependencies and a Today line. Drag a bar to reschedule it.
Mermaid
Flowchart, sequence and mind map code to native shapes and back, in a two-way pane.
Brainstorms
Themed columns of sticky notes that keep their places and votes when they change.
How it works
Pick a kind, describe it.
Press /
The AI bar opens with chips for app screens, flowcharts, mind maps, sequence diagrams, sitemaps, brainstorms, roadmaps, databases and Mermaid.
Describe it
“OAuth sign-in between the browser, our API and Google”, or “a schema for a bookstore with orders and reviews”.
Get a clean diagram
Laid out by Builderii, made of native shapes you can edit.
Change it by asking
Select part of it and ask. Edits land in place as one undo step.
On the canvas
Real boards, made in Builderii.
Questions
Good questions.
Which diagrams can the AI draw?
App screens, flowcharts, mind maps, sequence diagrams, sitemaps, brainstorms, roadmaps, database diagrams and Mermaid.
Can it change a diagram I already have?
Yes. With part of a diagram selected, the AI bar switches to its kind and changes it in place. Turn on Review AI changes to accept or reject each change.
Can I bring SQL or Prisma?
Paste or import SQL CREATE TABLE statements or Prisma models for a database diagram, and export SQL back for the page or the selection.
Is it free?
Yes. Builderii is free while it’s new, with every feature on and 500 AI jobs a month per person. Viewers and commenters will always be free, and paid plans will publish their AI allowances.
Keep reading
More ways to use Builderii.
What do you want to build?
Start with a prompt, a template or a blank board. It’s free.