Connecting end points of a line in QGIS

Question

I have this line. You can't see the rest of the line in the picture but It's only one line and I want to connect the two ends to close it and convert it into a polygon. I don't know how to connect it. I'm using QGIS 3.10

ahmadhanb · Accepted Answer

You need to use Vertex tool from the toolbar to move the vertex of the line to connect it to the other vertex. Click on Toggle editing and the vertex tool will be enabled.

Make sure to enable snapping in order to close the line correctly.

Stu Smith · Answer

Alternatively, you may prefer to add a new line between the endpoints, as opposed to pinching them together.  In this case, start editing the line layer and add a new line segment by utilizing the Add Line Feature button.
After saving the edit, the line layer displays as a loop, although it is not yet a polygon.  It will also have an additional feature in its attribute table (for a total of two), due to the new line.  You must reduce the number of line features to one, via the Vector > Geoprocessing > Dissolve tool.
Convert the dissolved line loop to a polygon with the Vector > Geometry Tools > Line to Polygons tool.  Voila! you now have a polygon layer with a single attribute record.

Connecting end points of a line in QGIS

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