pixeltable package and uses the same daemon that backs the pxt CLI.
Opening the dashboard
Runpxt dashboard from a terminal:
The dashboard binds to
127.0.0.1 only and is not accessible from other machines on the network. For remote access to tables and queries, see HTTP Serving.What you can do
The dashboard is a read-only inspector. You browse and debug your data visually; all mutations (inserts, schema changes, etc.) happen through the Python SDK or CLI.Browse the catalog
The left sidebar has a sticky Local / Cloud catalog switcher. You browse one active catalog at a time: the in-process local home by default, or a hosted database you attach with apxt://org:db URI. The tree under the switcher shows that catalog’s directories, tables, views, snapshots, and replicas. Each entry shows its kind (icon next to the name), version (vN when present), and error marks when relevant. Click a table to open it, or a directory for a summary and child list.
Large catalogs get a Filter… field under the switcher to narrow the tree by name. That is separate from global search: Cmd/Ctrl + K (search icon in the sidebar header) finds directories, tables, and columns across attached catalogs.
Inspect table data
The main table view has three tabs:- Data - paginated rows with typed columns, sortable by indexed columns, with configurable page sizes. Cells render inline previews for images, video, audio, and documents.
- Lineage - shows the table’s position in the pipeline: its base table, derived views, and column-level dependency graphs.
- History - version list with change types (inserts, updates, deletes) and timestamps.
Filter and search rows
A filter panel lets you narrow down the current page:- Free-text search across all columns (debounced)
- Faceted filters: text contains, numeric ranges, datetime ranges, boolean/enum checklists
- Errors-only mode: server-side filter that shows only rows with computation errors, useful for debugging failed computed columns
Preview media
Images and videos render inline in the data grid. Click any media cell to open a lightbox with keyboard navigation (arrow keys for prev/next). For image-heavy tables, a gallery view displays thumbnails in a grid with a detail overlay per row.Explore the pipeline
The Lineage page (lineage icon in the sidebar header, next to Search) shows a full-instance pipeline graph built with React Flow. Every table and view appears as a node, with edges showing relationships (base table, iterator, query dependencies). Click any node to open a detail drawer with:- Row count and version info
- Column breakdown (insertable, computed, stored)
- Embedding index definitions
- Computed column expressions with dependency graphs
- Version history
Export data
Download the current table as CSV (up to 100,000 rows) from the table view.Copy SDK snippets
The table view includes a Copy button that generates the Python SDK code for opening the current table, making it easy to switch from visual inspection to scripted work.Configuration
Set the port before invoking any
pxt command:
Keyboard shortcuts
Troubleshooting
Port already in use: If another process occupies port 22089, set a different port viaPXT_PORT=3000. The daemon refuses to start on a bound port and the CLI surfaces the bind error.
Daemon not responding: Check pxt daemon status for a quick health report. If the daemon is stuck, pxt daemon stop then pxt daemon start cycles it.
Static files missing: The React app ships as pre-built static files inside the pixeltable package. If you installed from source, ensure the dashboard was built (npm run build in the dashboard/ directory).