SQL Developer - Oracle SQL Developer is a free, development environment that simplifies the management of Oracle Database in both traditional and Cloud deployments.
phpMyAdmin - phpMyAdmin is a tool written in PHP intended to handle the administration of MySQL over the Web.
DBeaver - DBeaver - Universal Database Manager and SQL Client.
Sequel Pro - MySQL database management for Mac OS X
DbVisualizer - DbVisualizer is the universal database tool for developers, DBAs and analysts.
Amazon Athena - Amazon Athena is an interactive query service that makes it easy to analyze data in Amazon S3 using standard SQL. Athena is serverless, so there is no infrastructure to manage, and you pay only for the queries that you run.