OuterBase

OuterBase runs in your browser and gives you a spreadsheet-like interface for exploring and editing databases. It connects to PostgreSQL, MySQL, Supabase, and SQLite, letting you browse tables, run raw SQL queries, and modify data without touching the command line. It includes a built-in SQL editor with autocomplete and the ability to save queries for later reuse.

It's aimed at non-technical team members and analysts who need to work directly with data but aren't comfortable with database clients. Compared to writing SQL by hand or using expensive enterprise tools, OuterBase lowers the barrier to entry while keeping the power users' SQL queries available when needed. Free tier covers most small-team use cases.