Describe your app in plain English and Kozo designs a normalized, indexed, migration-ready Postgres schema in seconds.
“A SaaS app with teams, projects, and billing”
3NF schema
Migration-ready
4 tables
teams · projects · users · invoices
Keys & constraints
PK / FK · NOT NULL · unique
Indexed FKs
Hot columns covered
Generated in
6.2 seconds
Type what your app does and watch Kozo lay out the tables, keys, and relationships — then flip to the migration SQL when you’re ready to ship.
PROMPT
A SaaS app with teams, projects, and billing
Multi-tenant: scope rows by team
Projects belong to a team
Invoices track billing per team
FIG. 01 · PROMPT TO PRODUCTION
“Prompt panel, generated ER diagram, and the migration SQL — from a single sentence.”
Postgres-first DDL, plus exports for the ORMs and query builders your team already ships. Generate the schema once — take it wherever you build.
Plus raw Postgres DDL, ActiveRecord, GORM, Ecto, and plain SQL migrations — MySQL output is on the roadmap.
WHAT YOU GET FROM EVERY GENERATION
Across SaaS, e-commerce, social, and analytics.
Normalized, keyed, and indexed — every time.
Postgres DDL, Prisma, Drizzle, SQLAlchemy, and more.
Prompt to production-ready schema in under a minute.
Every feature is shaped around a real moment in your workflow — describing the app, reviewing the model, hardening it, and exporting it into your codebase.
DESCRIBE YOUR PRODUCT
A marketplace where sellers list products and buyers leave reviews
KOZO ASKS
Describe your product. Kozo asks the right questions and infers entities, fields, and types — no DDL knowledge required.
3NF tables, primary and foreign keys, junction tables for many-to-many, and sensible defaults — the model a senior data engineer would draw.
Indexes on foreign keys and hot columns, unique and check constraints, and NOT NULL where it actually matters — performance and integrity baked in.
Copy-paste Postgres DDL, or export Prisma, Drizzle, and SQLAlchemy models. The schema arrives in the shape your codebase already expects.
Valid Postgres DDL · run it as a migration
Prisma · Drizzle · SQLAlchemy models
One-click copy, no cleanup needed
See tables and relationships laid out so you can spot a missing join or a dangling reference before you ship — not in production.
SaaS multi-tenant
Proven starter
E-commerce
Proven starter
Social feed
Proven starter
Analytics events
Proven starter
Start from proven schemas — SaaS multi-tenant, e-commerce, social, analytics, and more — then describe the differences instead of starting from a blank page.
Every schema Kozo generates is graded the way a senior reviewer would grade it — so you ship a model that’s correct, not just plausible.
Higher is better
Checks for third normal form — no repeating groups, no partial or transitive dependencies. Many-to-many gets a junction table, not a comma-separated column.
Higher is better
Verifies every relationship has a foreign key, every table a primary key, and that unique, check, and NOT NULL constraints guard the columns that need them.
Higher is better
Confirms indexes cover foreign keys and hot query columns, and flags wide tables or missing composite indexes before they become slow queries in production.
THE CHECK
Across all three dimensions, this schema scores 92/100 — production-ready. Every check is explained, so you know exactly what to fix.
No schema knowledge required. No diagramming tools. No migrations to hand-write. Describe, generate, ship.
Type what your app does, in plain English. No DDL, no diagrams, no blank-page paralysis — just the product in a sentence or two.
Kozo designs the tables, keys, indexes, and relationships — normalized to 3NF, with constraints and indexes where they matter. In seconds.
Grab the migration SQL or ORM models — Prisma, Drizzle, SQLAlchemy — and ship. Run it as a migration as-is, or save the version to your library.
Hand-modeling tables, writing keys, remembering indexes, and authoring migrations takes hours — and one missed constraint ships a bug. Kozo does it in seconds, normalized and indexed, every time.
WHAT KOZO HANDLES FOR YOU
Normalized to 3NF automatically
Every FK indexed by default
Constraints you would have forgotten
Migration SQL ready to run
Free covers side projects and the occasional schema. Pro is for the developers who model new data every week and want every export format.
For solo devs and side projects that need a schema now and then.
Try the demoCancel anytime. Unlimited schemas, every export format.
For developers who model new data every week.
Start Pro →FAQ · STRAIGHT ANSWERS
Everything you’d want to know about databases, exports, privacy, and pricing. Tap a question to expand.
Postgres-first DDL, with exports for Prisma, Drizzle, and SQLAlchemy. MySQL output is on the roadmap.
READY WHEN YOU ARE
Describe your app, get a normalized, indexed, migration-ready Postgres schema in seconds. Free for 10 schemas a month. No card required.
Your prompts and schemas are scoped to your account — never used to train models.