CSV Tools is a Processing plugin for QGIS that adds algorithms to deal with CSV files.

• Project repository and homepage: https://github.com/ygversil/qgis-plugin-csv-tools

Currently, the following algorithms are provided:

• load a CSV file as a vector layer,
• export a vector layer as a CSV file,
• Compute difference between layers.

The last one works by converting both layers to CSV, and computing diff between the two CSV files. Of course it does only make sense for layers with same columns, so that the difference shows added, removed or modified lines.

These algorithms can become the building blocks of more complex workflows.

As an illustration you can use the Load CSV algorithm in the graphical modeler to automatically, and moreover quickly, extract data from a large Postgis table, given an extent for example. This is faster than loading the table directly in QGIS with an SQL filter because it uses the PotgreSQL COPY command. And the resulting model shows an easier user interface (just draw an extent, click run, and you get the data).

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.