What is the best Free Hex map making tool?

[Puxido]

I'm going to make a open world campaign soon so I need (or rather desire) a hex map making tool. I have a small budget, so free would be preferred. Now, I don't want randomly generated terrain, I want full control over the terrain, and the only free ones I could find seem to have a limit on how big the board is, so I would desire freedom on size of the map.

 

[Morrus]

hexographer.com

Free, easy to use, 80s graphics.

 

[Wangalade]

Hexographer is good.
But I would also recommend rpgmanager.net, it is not just a hex mapper, but also a campaign manager. You can personalize things such as weather, random encounters, a calendar, and you can also keep track of where the party is on the map