Extended properties editors

List of tools that allow editing of SQL Server extended properties.
Direct - read and save extended properties from SQL Server database.
Repository - edit metadata in separate repository and enable synchronization.
Custom fields - whether tool enables editing custom extended properties, apart MS_Description.

Dataedo

https://dataedo.com

Dataedo enables you to catalog, document and understand your data with Data Dictionary, Business Glossary and ERDs. It enables to document your relational databases and share documentation in interactive HTML.

Generate documentation:
Type:	Repository
Extended properties:	Custom fields
Commercial:	Commercial
Free edition:

Go to vendor website

Elasoft SqlSpec

https://elsasoft.com/

SqlSpec is a database documentation tool that will generate easy-to-read database documentation for almost all platforms. It has both GUI and command line interface. It enables you to generate entity-relation diagrams.

Generate documentation:
Type:	Direct
Extended properties:	Just MS_Description
Commercial:	Commercial
Free edition:

Go to vendor website

DTM Schema Reporter

http://www.sqledit.com/sr/index.html

DTM Schema Reporter is a documenting tool for database schema. This utility helps technical writers, developers, and database administrators create a database schema report within seconds. With DTM Schema Reporter the user can analyze and audit database structure, create schema documentation, train your employees, create a hard copy of the structure snapshots, etc.

Generate documentation:
Type:	Direct
Extended properties:	Just MS_Description
Commercial:	Commercial
Free edition:

Go to vendor website

xSQL Documenter

http://www.xsql.com/products/database_documenter/

xSQL Documenter provides comprehensive, uniform, and easily navigable database documentation in HTML and compiled CHM format. xSQL Documenter allows you to edit extended properties on a live server from the generated documentation. It provides the ability to define your own extended properties on columns, indexes, triggers, parameters, etc that appear integrated into the documentation.