If there’s one thing every good designer knows, it’s that the simplest websites can be the toughest to create. It’s a cruel irony. But the effort to craft a clean, sophisticated online experience is effort well spent. The reason? Our brains don’t like clutter. There’s a limit to the amount of information we can process at any given time. So when user experiences are simple and well-organized, their message becomes immeasurably more impactful.

It isn’t just conjecture. Time and again, scientific research has shown that users prefer simple websites. And it takes them just fractions of a second to make the judgment. A 2012 study by Google found that users judge a website as “beautiful” or “ugly” in just 0.02-0.05 seconds, and that visually complex websites are consistently rated worse. A Harvard study also found that when it comes to first impressions, users simply don’t like visual complexity in their online experience.

Of course it isn’t enough for your website just to be “simple.” That simplicity has to be profound. Maximally minimal. It’s needs to be selectively impactful so as to compel your audience with the least amount of information possible. This is why “simple” is difficult. Authentic brands—that is, brands that truly know who they are—have a huge advantage when facing the challenge, though.

In an online world of unnecessary complexity, simple websites stand out. Their distinction leads to more engaged customers, and more engaged customers lead to higher sales. At the end of the day, that’s why simple websites are simply better. Here are 38 of our favorites.

1. AYR
simple websites 20

2. RTA Studio
simple websites 09

3. IL-HO
simple websites 08

4. Thru You Too
simple websites 03

5. Anja Rubik
simple websites 02

6. Guillaume Bouvet
simple websites

7. Quincy Requin & Associates
simple websites

8. Flavinsky
simple websites

9. MASHVP
clean and simple websites 35

10. Joris Rigerl
clean and simple websites

11. NUTSANDWOODS
clean and simple websites 04

12. Piet Oudolf
clean and simple websites 07

13. Jova Construction
clean and simple websites

14. ZERO: Countdown to Tomorrow
clean and simple websites

15. A Spacecraft for All
clean and simple websites

16. B14
clean and simple websites 30

16. ETQ
clean and simple websites 12

17. HYS
ignyte-website-design-agency-13

18. Mixed Residence
ignyte-website-design-agency-10

19. BCODE
ignyte-website-design-agency-29

20. Adidas Originals
ignyte-website-design-agency-28

21. Carl Philippe Brenner
ignyte-website-design-agency-27

22. Thomas Ciszewski Photography
ignyte-website-design-agency-26

23. Newton Running
ignyte-website-design-agency-25

24. Goat
ignyte-website-design-agency-14

25. Heineken: The Legendary Posters
ignyte-website-design-agency-23

26. Decade: Size Records
ignyte-website-design-agency-24

27. Plastic Bionic
ignyte-website-design-agency-22

28. Sokke Austad
ignyte-website-design-agency-21

29. McColl Center
ignyte-website-design-agency-00

30. ADO Arena
ignyte-website-design-agency-06

31. Rouge Society Gin
ignyte-website-design-agency-19

32. BMoCA
ignyte-website-design-agency-18

33. 100 ANS DE TOUR
ignyte-website-design-agency-39

34. IND Architects
ignyte-website-design-agency-17

35. Eric Carter
ignyte-website-design-agency-16

36. BVD
ignyte-website-design-agency-15

37. Rally Interactive
ignyte-website-design-agency-40

38. Melanie F
ignyte-website-design-agency-41

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A prolific blogger, speaker, and columnist, Brian has more than a decade of experience in design and branding. He’s written for publications including Forbes, Huffington Post, and Brand Quarterly.