Adminer - Database Management in Single PHP file

•    PHP

Adminer (formerly phpMinAdmin) is a full-featured database management tool written in PHP. Conversely to phpMyAdmin, it consist of a single file ready to deploy to the target server. Adminer is available for MySQL, PostgreSQL, SQLite, MS SQL, Oracle, SimpleDB, Elasticsearch and MongoDB

SQL Workbench - DBMS-independent SQL query tool

•    Java

SQL Workbench is a DBMS-independent, cross-platform SQL query tool. Its main focus is on running SQL scripts (either interactively or as a batch) and export/import features. It could compare the data of two database and generate the necessary SQL statements to migrate one to the other.

Presto - Distributed SQL query engine for big data

•    Java

Presto is an open source distributed SQL query engine for running interactive analytic queries against data sources of all sizes ranging from gigabytes to petabytes. It allows querying data from relational / nosql databases. A single Presto query can combine data from multiple sources, allowing for analytics across your entire organization. It is developed by Facebook.

DBeaver - Universal SQL Manager and SQL Client

•    Java

DBeaver is a multi-platform database tool for developers, SQL programmers, database administrators and analysts. It supports all popular databases: MySQL, PostgreSQL, SQLite, Oracle, DB2, SQL Server, Sybase, Teradata, MongoDB, Cassandra, Redis, etc. Its feature include metadata editor, SQL editor, rich data editor, ERD, data export/import/migration, SQL execution plans, etc.

Eclipse SQL Explorer - SQL client

•    Java

Eclipse SQL Explorer is a thin SQL client that allows you to query and browse any JDBC compliant database. It supports plugins with specialized functionality for individual databases (Oracle, DB2 and MySQL) and can be extended to include specialized support for other databases. It is available as standalone client as well as Eclipse plugin.

FlameRobin - Database Administration Tool for Firebird

•    C++

FlameRobin is lightweight cross platform database administration tool for Firebird RDBMS.

SQuirreL SQL - Universal SQL Client

•    Java

SQuirreL SQL Client is a graphical Java program that will allow you to view the structure of a JDBC compliant database, browse the data in tables, issue SQL commands etc. SQuirreL's functionality can be extended through the use of plugins.

RockMongo - MongoDB Administration Tool in PHP

•    PHP

RockMongo, a MongoDB administration tool, written in PHP5, is Best in PHP world, more like PHPMyAdmin.

SQLbuddy – Microsoft SQL Server Management Tool

•    CSharp

SqlBuddy is a tool for use with Microsoft SQL Server and MSDE, written in csharp/ DotNet (.NET), to facilitate SQL script writing. It is serves a slightly different purpose that of Query Analyser, in that it is aimed to *help* the user write SQL. It helps to explore the database schema, Organise SQL code and snippets, To expose the in-built SQL Server functionality (functions, procedures etc) to the developer.

AnyDbTest

AnyDbTest is the first and only automated DB unit testing tool available using XML as test case. AnyDbTest is just designed for DBA/DB developers. It supports all kinds of popular database, such as Oracle, SQL Server, MySQL, and PostgreSQL etc.