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The app

Editor, grid, sidebar.
Nothing you don't need.

One window per connection: the schema tree on the left, Monaco in the middle, results underneath. Both splits are draggable and the arrangement comes back after a restart. Every image below is a capture of the shipped app.

huginndb · chinook.db · sqlitequery.sql
HuginnDB SQL workspace with the autocomplete list open over a SELECT statement and a results grid of 347 rows below it
The SQL workspace. Schema-aware autocomplete offering a table mid-query, Run on Ctrl+Enter, and 347 rows back in the grid underneath.
huginndb · Employee · side editorplain text
A HuginnDB data grid with the cell context menu open and the side editor showing the selected value
Right-click a cell and open it in the side editor — a syntax picker, Format, and Discard or Save, right next to the grid.
huginndb · chinook.db · sqlitewelcome
HuginnDB main window with the schema explorer showing an SQLite database expanded to eleven tables, beside the welcome pane
The window on open: the schema explorer with chinook.db expanded over SQLite, and the Ctrl+K palette and Ctrl+, preferences hints where you can see them.
huginndb · preferencesmcp
HuginnDB MCP preferences panel showing the connector binary path and a per-connection write policy dropdown open on Read-only, Data and Full
Preferences → MCP: the resolved connector binary, the connections you choose to expose, and the write policy for each one — Read-only, Data, or Full.

Multi-window when you want it

Pop a connection's whole workspace — or a single query tab — out into its own OS window. Saved queries keep a local library with names, descriptions and tags.

Shortcuts

Ctrl+Enter
Run the current query
Double-click
Expand the focused cell
F11
Fullscreen the cell editor
Esc
Exit fullscreen or close the editor