SQL Fiddle - A tool for easy online testing and sharing of database problems and their solutions.
Laravel Voyager - The missing Laravel admin
DB Fiddle - An online tool for testing, sharing and collaborating on SQL snippets
FireCMS - An open source CMS/admin panel based on Firestore
ExtendsClass SQL Online - Online SQL playground for testing and sharing SQL snippets. SQLite, MySQL and PostgreSQL.
Laravel Kit - Desktop Laravel admin panel app with no configuration needs