Free and open first

Best Database Documentation Tools in 2026

Keeping database structures understandable starts with choosing documentation features that match what you need to record and share. Compare database coverage, data dictionaries, lineage, and schema history, then consider deployment and single sign-on as part of workflow fit. MySQL, dbdocs, and dbForge Studio for PostgreSQL are among the options shown. The listed free-plan availability and paid starting price offer cost context, while the feature comparisons can help you focus on the databases and documentation details that matter in your work.

27 apps
Research read 23 Sept 2026
How the order is worked out

1

Azimutt

Free plan Open source APIExtensionLinux+2

Azimutt combines schema diagrams, exploration, analysis and documentation, with several deployment options.

9.3 Free plan · paid from €7/mo (annual) Visit site
2

DBDock

Free plan Open source APILinuxMac+3

Choose DBDock if you want a free, self-hosted CLI for database backups, restores, or MongoDB and PostgreSQL migrations.

9.2 Free plan Visit site
3

dbdocs

Free plan LinuxMacWeb+1

dbdocs provides a DBML-based route from schema definitions to browsable, shareable documentation. Review the default public access and plan-level privacy options before publishing project details.

7.5 Free plan · 7-day trial Visit site
4

DBX

Free plan APILinuxMac+3

DBX brings connection management, SQL, schema tools, and automation together across a wide range of data systems.

7.4 Free plan Visit site
5

DbSchema

Free plan LinuxMacWindows

DbSchema brings database modeling, queries, documentation, and schema synchronization into a desktop application.

7.3 Free plan · 15-day trial Visit site
6

DbSketch

Free plan LinuxMacWindows

DbSketch covers schema documentation from four database types, with several output formats and per-diagram settings.

7.3 Free plan Visit site
7

DataDocs

Free plan Web

Choose DataDocs if your team needs searchable, AI-generated documentation for PostgreSQL or MySQL and wants schema changes reflected in it.

7.2 Free plan Visit site
8

dbt Semantic Layer

Free plan APIExtensionWeb

dbt Semantic Layer gives teams a shared, code-managed way to define and query metrics across supported tools.

7.2 Free plan · paid from $100/user/mo Visit site
9

LLMSchema

Free plan LinuxMacSelf-hosted+1

LLMSchema provides selectable Markdown schema documentation in formats useful to coding workflows. Its stated development focus makes it a poor fit for production-critical documentation.

7.2 Open source Visit site
10

MySQL

Free plan APILinuxMac+2

7.2 Free plan Visit site
11

SchemaCrawler

Free plan APILinuxMac+2

SchemaCrawler provides a broad set of schema discovery, documentation, comparison, and diagramming options at no software cost.

7.1 Free plan Visit site
12

SchemaSpy

Free plan LinuxMacSelf-hosted+1

Choose SchemaSpy if you want free, shareable database documentation generated from metadata, with diagrams, statistics, and anomaly checks.

7.1 Free plan Visit site
13

Taavik

Free plan APILinuxSelf-hosted+2

Choose Taavik if your team wants generated database documentation, schema change history, and shared read-only queries across its supported databases.

7.0 Free plan · paid from €39/user/mo Visit site
14

tbls

Free plan LinuxMacSelf-hosted+1

tbls combines database documentation with linting, schema comparison, and coverage measurement in a free CLI. Check its SQL Server requirements if that is your data source.

7.0 Free plan Visit site
15

ErdDocs

Free plan Web

Choose ErdDocs if you need browser-based diagrams and schema documentation from exported relational schemas, especially if the free plan's 25-table drawing limit is enough.

6.9 Free plan · paid from $9 Visit site
16

Dataedo

Free trial ExtensionSelf-hostedWeb+1

Dataedo brings cataloging, lineage, and quality tools together, with several deployment choices and a 14-day trial. Its listed plans have a three-editor minimum and start at $18,000 a year.

6.5 From $18,000/yr · 14-day trial Visit site
17

Toad Data Modeler

Free plan Windows

6.5 Pricing on request · 30-day trial Visit site
18

dbForge Studio for SQL Server
by Devart
Free plan WindowsMacLinux

6.4 Free plan · paid from $249.95/yr · 30-day trial Visit site
19

Altova DatabaseSpy

Free trial Windows

DatabaseSpy brings query work, schema design, and data editing into a Windows database client, with charting in Enterprise Edition.

6.2 30-day trial Visit site
20

DBScribe

Free trial Windows

DBScribe turns database schemas into documentation in several formats, with customization options for the SQL Server edition.

5.9 From $39 · 30-day trial Visit site
21

ER/Studio Data Architect

Free trial Windows

ER/Studio Data Architect combines modeling, reverse engineering, schema comparison, and dictionary tools in a self-hosted Windows product.

5.7 14-day trial Visit site
22

SQL Assistant

Free trial APIWindows

SQL Assistant combines SQL coding assistance, database administration tools, and integrated AI across many database systems.

5.7 From $240.31 · 14-day trial Visit site
23

TechWriter for Databases

Free trial Windows

TechWriter for Databases focuses on turning supported database structures into editable reference documentation.

5.4 From $179 Visit site
24

SQL Data Dictionary

Paid Windows

SQL Data Dictionary focuses on turning SQL Server schemas into detailed, exportable documentation.

5.0 Visit site
25

drizzle-docs-generator

Paid

Pick drizzle-docs-generator if you use Drizzle ORM and want schema-derived Markdown or DBML, including extracted comments and relation details.

4.8 Open source Visit site

#1Places #1, #2, #3, #4, #5 on this list can be bought by the makers of the software on it. See the price

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