Services · ShadowDB

In development

Your database schema, drawn and checked.

ShadowDB — the DBML Visualizer in Fyboard's Shadow Eye toolset — turns DBML, Prisma or SQL into a diagram you can read: tables and their relations, laid out for you. Trace the JOIN between any two tables, check the schema's health, and export it in 14 formats.

Join the waitlist All services

DBML, Prisma or SQL in
PostgreSQL, MySQL and MariaDB connections
14 formats out

01DBML
02Prisma
03PostgreSQL
04MySQL
05SQLite DDL

01 · At work

Paste a schema, get the diagram.

DDL pasted, its dialect detected, and four tables laid out with their relations — in ShadowDB's own window.

Shadow Eye · ShadowDB

Shadow DB

Database Reality Engine

431.00x

All

Schema Database View Generate

No tables yet

Import a schema or connect a database

users2

idserial

emailtext

orders3

idserial

user_idint

statustext

order_items3

idserial

order_idint

product_idint

products3

idserial

skutext

pricenumeric

Import

Database Connection

Connect to database

Import Schema

Import schema file

Export

Export Schema

SQL, ORM, GraphQL, Markdown…

Editor

DBML Editor

Show DBML editor

Import Schema

DBML, Prisma, SQL — PostgreSQL, MySQL, SQLite

Quick Paste (Auto-detect)

Paste your schema here for auto-detection...

CREATE TABLE users (id SERIAL PRIMARY KEY, email TEXT UNIQUE);

CREATE TABLE products (id SERIAL PRIMARY KEY, sku TEXT, price NUMERIC);

CREATE TABLE orders (

id SERIAL PRIMARY KEY,

user_id INT REFERENCES users(id),

status TEXT NOT NULL

);

CREATE TABLE order_items (

id SERIAL PRIMARY KEY,

order_id INT REFERENCES orders(id),

product_id INT REFERENCES products(id)

);

Detected: PostgreSQL

CancelImport

Illustrative schema

02 · Path

From a relation to its JOINs.

01Start from a relationOpen a table, find the relation in its Relations tab and press + Path; Show Path in Graph lights the route on the diagram.
02The SQL, writtenShadowDB writes the LEFT JOINs along the path — switch to Edit to extend it by hand, then copy it.
03Relations and impactThe same drawer shows a table's relations, what depends on it, and its columns.

Shadow Eye · ShadowDB

Shadow DB

Schema Database View

users2

idserial

emailtext

products3

idserial

skutext

pricenumeric

orders3

idserial

user_idint

statustext

order_items3

idserial

order_idint

product_idint

users21 PK0 FK1 rels

Relations1Path1ImpactColumns

Filter relationships...

Inbound1(1 tables)

orders1

N:1user_id → id Path

Outbound0(0 tables)

No outbound relations

Relationship Path Navigator Clear

Path Preview2 tables

usersuser_id→idorders

1N:1orders.user_idusers.id

Show Path in Graph (2 tables)

SQL QueryAutoEdit Copy Copied!

-- Relationship path from users

-- Tables: users → orders

SELECT

users.*,

orders.*

FROM users

LEFT JOIN orders

ON orders.user_id = users.id;

-- Relationship path from users

-- Tables: users → orders

SELECT

users.*,

orders.*

FROM users

LEFT JOIN orders

ON orders.user_id = users.id

LEFT JOIN order_items

ON order_items.order_id = orders.id

LEFT JOIN products

ON order_items.product_id = products.id;

03 · Health

A schema that checks itself.

0116 lint rulesMissing primary keys, foreign keys without an index, inconsistent naming and more — each with where and why.
02Fix what can be fixedAuto-fixable issues have a Fix button; the score moves as you go.
03More ways to lookA heatmap, data flow, impact and coupling, type inconsistencies, and a diff against DBML you paste in.

Shadow Eye · ShadowDB

Shadow DB

5391

Schema Database View

users2

idserial

emailtext

orders3

idserial

user_ididxint

totalnumeric

audit_log3

idserial

actiontext

user_idint

OrderItems3

idserial

order_idint

product_idint

products2

idserial

skutext

Visualizations

Data Flow

Heatmap

Schema Diff

Analytics

Schema Health

Advanced

Impact & Coupling

Type Inconsistencies

Schema Health

0error0warning1info

16 rules checked

Issues1RulesSettings

Missing primary key on audit_log

Error · Structure

Fix Fixed

Foreign key without index: orders.user_id

Warning · Performance

Fix Fixed

Inconsistent naming: OrderItems

Info · Naming

04 · Out

Out in 14 formats.

01SQL for four databasesPostgreSQL, MySQL, SQLite and SQL Server.
02Your ORM's languagePrisma, TypeORM, Sequelize and Drizzle — plus DBML, GraphQL and JSON Schema.
03Docs and diagrams as textMarkdown, PlantUML and Mermaid. Preview any format, then download or copy it.

Shadow Eye · ShadowDB

Shadow DB

Schema Database View

users2

idserial

emailtext

orders3

idserial

user_idint

statustext

order_items3

idserial

order_idint

product_idint

products3

idserial

skutext

pricenumeric

Import

Database Connection

Import Schema

Export

Export Schema

Editor

DBML Editor

Export Schema14 formats

Formats

DBMLPostgreSQLMySQLSQLiteSQL ServerPrismaTypeORMSequelizeDrizzle ORMGraphQLJSON SchemaMarkdownPlantUMLMermaid

Mermaid

Mermaid ERD Diagram

Copy Download

Table users {

id serial [pk]

email text [unique]

}

Table orders {

id serial [pk]

user_id int [ref: > users.id]

status text

}

model users {

id Int @id @default(autoincrement())

email String @unique

orders orders[]

}

model orders {

id Int @id @default(autoincrement())

user_id Int

users users @relation(fields: [user_id], references: [id])

export const users = pgTable("users", {

id: serial("id").primaryKey(),

email: text("email").unique(),

});

export const orders = pgTable("orders", {

id: serial("id").primaryKey(),

userId: integer("user_id").references(() => users.id),

status: text("status"),

});

erDiagram

users ||--o{ orders : "user_id"

orders ||--o{ order_items : "order_id"

products ||--o{ order_items : "product_id"

users {

serial id PK

text email

}

orders {

int user_id FK

05 · Connected

Or point it at a database.

Connect PostgreSQL, MySQL or MariaDB and the diagram is read from it
An SQL query panel with table autocomplete while connected
Browse and edit rows, bulk edit, import a CSV
Saved connections kept in your browser

06 · Plainly

What it does, and what it doesn't yet.

01
In development
ShadowDB is part of Shadow Eye, which isn't open on fyboard.com yet. You can join the waitlist.
02
The schema isn't saved yet
A pasted schema lasts until you reload; saved views keep the layout and focus, not the schema.
03
Text out, not pictures
Exports are the 14 text formats; a PNG, SVG or PDF of the diagram isn't built yet.
04
One look at a time
A connection reads the database when you connect — it doesn't follow changes live.

07 · Questions

Asked and answered.

Do I need to write DBML?

No. Paste Prisma or SQL DDL and ShadowDB detects the dialect, or connect a PostgreSQL, MySQL or MariaDB database.

Can I export the diagram as an image?

Not yet. You can export the schema in 14 text formats, including Mermaid and PlantUML, which draw it elsewhere.

How does a database connection work?

ShadowDB connects through Fyboard's server to read the schema from your database; it doesn't change anything unless you create a table or edit rows yourself.

When can I use it?

It's in development. Join the waitlist and we'll tell you when Shadow Eye opens.

ShadowDB · a Fyboard service

Draw your schema.

Part of Shadow Eye, beside Deep Trace and the JSON Viewer. In development — join the waitlist to hear when it opens.

Join the waitlist All services

Services · ShadowDB

In development

Your database schema, drawn and checked.

Join the waitlist All services

DBML, Prisma or SQL in
PostgreSQL, MySQL and MariaDB connections
14 formats out

01DBML
02Prisma
03PostgreSQL
04MySQL
05SQLite DDL

01 · At work

Paste a schema, get the diagram.

DDL pasted, its dialect detected, and four tables laid out with their relations — in ShadowDB's own window.

Shadow Eye · ShadowDB

Shadow DB

Database Reality Engine

431.00x

All

Schema Database View Generate

No tables yet

Import a schema or connect a database

users2

idserial

emailtext

orders3

idserial

user_idint

statustext

order_items3

idserial

order_idint

product_idint

products3

idserial

skutext

pricenumeric

Import

Database Connection

Connect to database

Import Schema

Import schema file

Export

Export Schema

SQL, ORM, GraphQL, Markdown…

Editor

DBML Editor

Show DBML editor

Import Schema

DBML, Prisma, SQL — PostgreSQL, MySQL, SQLite

Quick Paste (Auto-detect)

Paste your schema here for auto-detection...

CREATE TABLE users (id SERIAL PRIMARY KEY, email TEXT UNIQUE);

CREATE TABLE products (id SERIAL PRIMARY KEY, sku TEXT, price NUMERIC);

CREATE TABLE orders (

id SERIAL PRIMARY KEY,

user_id INT REFERENCES users(id),

status TEXT NOT NULL

);

CREATE TABLE order_items (

id SERIAL PRIMARY KEY,

order_id INT REFERENCES orders(id),

product_id INT REFERENCES products(id)

);

Detected: PostgreSQL

CancelImport

Illustrative schema

02 · Path

From a relation to its JOINs.

01Start from a relationOpen a table, find the relation in its Relations tab and press + Path; Show Path in Graph lights the route on the diagram.
02The SQL, writtenShadowDB writes the LEFT JOINs along the path — switch to Edit to extend it by hand, then copy it.
03Relations and impactThe same drawer shows a table's relations, what depends on it, and its columns.

Shadow Eye · ShadowDB

Shadow DB

Schema Database View

users2

idserial

emailtext

products3

idserial

skutext

pricenumeric

orders3

idserial

user_idint

statustext

order_items3

idserial

order_idint

product_idint

users21 PK0 FK1 rels

Relations1Path1ImpactColumns

Filter relationships...

Inbound1(1 tables)

orders1

N:1user_id → id Path

Outbound0(0 tables)

No outbound relations

Relationship Path Navigator Clear

Path Preview2 tables

usersuser_id→idorders

1N:1orders.user_idusers.id

Show Path in Graph (2 tables)

SQL QueryAutoEdit Copy Copied!

-- Relationship path from users

-- Tables: users → orders

SELECT

users.*,

orders.*

FROM users

LEFT JOIN orders

ON orders.user_id = users.id;

-- Relationship path from users

-- Tables: users → orders

SELECT

users.*,

orders.*

FROM users

LEFT JOIN orders

ON orders.user_id = users.id

LEFT JOIN order_items

ON order_items.order_id = orders.id

LEFT JOIN products

ON order_items.product_id = products.id;

03 · Health

A schema that checks itself.

0116 lint rulesMissing primary keys, foreign keys without an index, inconsistent naming and more — each with where and why.
02Fix what can be fixedAuto-fixable issues have a Fix button; the score moves as you go.
03More ways to lookA heatmap, data flow, impact and coupling, type inconsistencies, and a diff against DBML you paste in.

Shadow Eye · ShadowDB

Shadow DB

5391

Schema Database View

users2

idserial

emailtext

orders3

idserial

user_ididxint

totalnumeric

audit_log3

idserial

actiontext

user_idint

OrderItems3

idserial

order_idint

product_idint

products2

idserial

skutext

Visualizations

Data Flow

Heatmap

Schema Diff

Analytics

Schema Health

Advanced

Impact & Coupling

Type Inconsistencies

Schema Health

0error0warning1info

16 rules checked

Issues1RulesSettings

Missing primary key on audit_log

Error · Structure

Fix Fixed

Foreign key without index: orders.user_id

Warning · Performance

Fix Fixed

Inconsistent naming: OrderItems

Info · Naming

04 · Out

Out in 14 formats.

01SQL for four databasesPostgreSQL, MySQL, SQLite and SQL Server.
02Your ORM's languagePrisma, TypeORM, Sequelize and Drizzle — plus DBML, GraphQL and JSON Schema.
03Docs and diagrams as textMarkdown, PlantUML and Mermaid. Preview any format, then download or copy it.

Shadow Eye · ShadowDB

Shadow DB

Schema Database View

users2

idserial

emailtext

orders3

idserial

user_idint

statustext

order_items3

idserial

order_idint

product_idint

products3

idserial

skutext

pricenumeric

Import

Database Connection

Import Schema

Export

Export Schema

Editor

DBML Editor

Export Schema14 formats

Formats

DBMLPostgreSQLMySQLSQLiteSQL ServerPrismaTypeORMSequelizeDrizzle ORMGraphQLJSON SchemaMarkdownPlantUMLMermaid

Mermaid

Mermaid ERD Diagram

Copy Download

Table users {

id serial [pk]

email text [unique]

}

Table orders {

id serial [pk]

user_id int [ref: > users.id]

status text

}

model users {

id Int @id @default(autoincrement())

email String @unique

orders orders[]

}

model orders {

id Int @id @default(autoincrement())

user_id Int

users users @relation(fields: [user_id], references: [id])

export const users = pgTable("users", {

id: serial("id").primaryKey(),

email: text("email").unique(),

});

export const orders = pgTable("orders", {

id: serial("id").primaryKey(),

userId: integer("user_id").references(() => users.id),

status: text("status"),

});

erDiagram

users ||--o{ orders : "user_id"

orders ||--o{ order_items : "order_id"

products ||--o{ order_items : "product_id"

users {

serial id PK

text email

}

orders {

int user_id FK

05 · Connected

Or point it at a database.

Connect PostgreSQL, MySQL or MariaDB and the diagram is read from it
An SQL query panel with table autocomplete while connected
Browse and edit rows, bulk edit, import a CSV
Saved connections kept in your browser

06 · Plainly

What it does, and what it doesn't yet.

01
In development
ShadowDB is part of Shadow Eye, which isn't open on fyboard.com yet. You can join the waitlist.
02
The schema isn't saved yet
A pasted schema lasts until you reload; saved views keep the layout and focus, not the schema.
03
Text out, not pictures
Exports are the 14 text formats; a PNG, SVG or PDF of the diagram isn't built yet.
04
One look at a time
A connection reads the database when you connect — it doesn't follow changes live.

07 · Questions

Asked and answered.

Do I need to write DBML?

No. Paste Prisma or SQL DDL and ShadowDB detects the dialect, or connect a PostgreSQL, MySQL or MariaDB database.

Can I export the diagram as an image?

Not yet. You can export the schema in 14 text formats, including Mermaid and PlantUML, which draw it elsewhere.

How does a database connection work?

ShadowDB connects through Fyboard's server to read the schema from your database; it doesn't change anything unless you create a table or edit rows yourself.

When can I use it?

It's in development. Join the waitlist and we'll tell you when Shadow Eye opens.

ShadowDB · a Fyboard service

Draw your schema.

Part of Shadow Eye, beside Deep Trace and the JSON Viewer. In development — join the waitlist to hear when it opens.

Join the waitlist All services

Your database schema, drawn and checked.

Paste a schema, get the diagram.

From a relation to its JOINs.

A schema that checks itself.

Out in 14 formats.

Or point it at a database.

What it does, and what it doesn't yet.

In development

The schema isn't saved yet

Text out, not pictures

One look at a time

Asked and answered.

Draw your schema.

Your database schema, drawn and checked.

Paste a schema, get the diagram.

From a relation to its JOINs.

A schema that checks itself.

Out in 14 formats.

Or point it at a database.

What it does, and what it doesn't yet.

In development

The schema isn't saved yet

Text out, not pictures

One look at a time

Asked and answered.

Draw your schema.