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Template·Text & Data
Summarise by Group
Aggregate a column - sum, mean, count. The one-node version of a GROUP BY for quick reporting. Runs in-process - no model, no key, no cost.

The workflow
Workflow Editor
Nodes in this workflow
3 nodes · 3 types- Aggregatenodetool.data.Aggregate
- Import CSVnodetool.data.ImportCSV
- Outputnodetool.output.Output
How to run it
- 01
Download NodeTool Studio
Install the free desktop app for macOS, Windows, or Linux. It runs on your own machine, no account required to start.
- 02
Open the Summarise by Group template
Browse the built-in template library inside Studio and open this workflow onto the canvas. Every node is already wired up.
- 03
Add your keys
Connect any model providers this workflow calls with your own API keys, or point it at local models.
- 04
Run and remix
Hit Run to execute the graph and watch results stream in. Swap models, edit prompts, or rewire nodes to make it yours.
Run Summarise by Group on your machine
Free, open source, and yours to run. Download Studio, open the template, and run it with your own keys.








