Best way to earn credits?

The best way to earn credits is buying the credits mega pack. One click and instant 525k.

Even that has been nerfed though, before one was able to earn up to 1.5m credits when it procced 3x but not anymore.

Yes, but there has to be a way to earn enough credits to level up your characters without using real money. As someone who does purchase crystals monthly, I have a problem with the lack of credit availability. I can imagine that f2p people feel they are falling behind.

The main point about Credits is to manage them carefully...
When you reached Level 50, you start to choose wisely how to spend them.

Your Credit Earnings come from:
- GW (Mainly ): every GW achieved gives you around 450k,
- Daily Quest: that's short, but you'll have some 200k every day,
- Credit Challenge: 250k 3-times a week,
Missions / Cantina are not relevant for earning credits...

Your main needs will be: leveling up, starring up and gearing.

By that statements, my strategy was this:
- leveling toons: your daily earnings through Quest/GW allow you to level up 5 toons until Level 70 without missing one Level Up,
- starring toons: your Credit Challenge will give you the credits to star up your 5 main toons,
- gearing toons: Missions / cantinas give you the credits needed.
After level 60+, it will take 2 days at least (3 on the last levels) to level up.
So, you will be able to level up some others toons on that days.

With this plan, you will have the credits necessary to reach Level 70 with 5 toons Lvl 70 and 7* (if you can grind the shards).
And probably a good bench, but 5 level below your main teams.

They really need to boost credits...in LS/DS seems like a good place. I'm thinking 10x what they give now. They sell every frickin resource either directly or indirectly.

Key card battles. 100k per battle. A couple energy refreshes and you can have 1 million in a day.

Oh wait they did away with that. Never mind.