I wish to process a river network - for the assessment of hydrological potential. RivEX is one addin (not free) which could be used with ArcGIS.

Is there any alternative to this?

closed as primarily opinion-based by Vince, whyzar, BERA, nmtoken, csk Jun 5 '18 at 19:17

Many good questions generate some degree of opinion based on expert experience, but answers to this question will tend to be almost entirely based on opinions, rather than facts, references, or specific expertise. If this question can be reworded to fit the rules in the help center, please edit the question.

  • Welcome to GIS SE. As a new user, please take the Tour, which explains how our "Focused question / Best answer" model operates. Software recommendation requests aren't a good fit for our Q&A model. There is Software Recommendations, but either way, you'd need to provide many more details than "process a river network" to get a useful answer. – Vince Jun 5 '18 at 10:11