A few articles about free SQL Server tools and utilities that are worthy of a DBA bookmark.
- Microsoft SQL Server Utilities and Tools By Konstantin Taranov
- Free SQL Server tools azure tools and community tools from red-gate.com
- Training Resources for SQL Noobs’ by Kendra Little
- Free SQL Server Tools for Every DBA from idera.com
- SolarWinds.com Software Free Tool Downloads
- Free SQL Server tools by SQLShack.com
- SentryOne.com Plan Explorer
Please note: I have NOT tested the usefulness of the tools and utilities listed in the above articles.