Make Layer Valid

It is accessible through:

Tools > Make Layer Valid...


The Make Layer Valid is used to try to correct the geometries of a layer. Valid/corrected geometries are saved in the first output file. Those that still invalid after this process are saved in the second output file (it can be empty at the end). Thus, the user can safely observe and decide what to do with these geometries.


Under the "Operation" tab :


Under the "Options" tab :

Once all the input parameters were set, to execute the operation:
The vertical tab Report give you a summary of the operation.