Adminer - Database management in a single PHP file
Adminer Editor - Data manipulation for end-users

https://www.adminer.org/

Supports: MySQL, MariaDB, PostgreSQL, SQLite, MS SQL, CockroachDB, Oracle, MongoDB, Elasticsearch (plugin), SimpleDB (plugin), Firebird (plugin), ClickHouse (plugin)
Requirements: PHP 5.3+

adminer/index.php - Run development version of Adminer
editor/index.php - Run development version of Adminer Editor
editor/example.php - Example customization
plugins/readme.txt - Plugins for Adminer and Adminer Editor
adminer/plugin.php - Plugin demo
adminer/sqlite.php - Development version of Adminer with SQLite allowed
editor/sqlite.php - Development version of Editor with SQLite allowed
adminer/designs.php - Development version of Adminer with adminer.css switcher
compile.php - Create a single file version
lang.php - Update translations
tests/katalon.html - Katalon Automation Recorder test suite

If downloaded from Git then run: git submodule update --init