DBeaver - DBeaver - Universal Database Manager and SQL Client.
OSRM - Utilities, Application Utilities, and Mapping APIs
DataGrip - Tool for SQL and databases
pgRouting - Repository contains pgRouting library. Development branch is "develop", stable branch is "master" - pgRouting/pgrouting
HeidiSQL - HeidiSQL is a powerful and easy client for MySQL, MariaDB, Microsoft SQL Server and PostgreSQL. Open source and entirely free to use.
Google Maps - Find local businesses, view maps and get driving directions in Google Maps.