This is a slightly hidden cafe in Salt River. The WiFi was fast if I remember correct. The food is really good and really cheap. There are some nice outdoor seats as well. They have a small shop inside where they sell products from local township businesses, which is really cool.

This place is operated by the Imagin Bank. Technically, you may need an Imagin Bank account, but the entrance staff were welcoming and did not check with me. I didn't even buy a coffee I think. According to a Google Maps review, the wifi is unusable, but I did not have any issues with it. The staff helped me out to connect it. The place is roomy and has plenty of power outlets. If you go upstairs, there is ample space to chill and relax like sofas and some books to read. I cannot recall the exact speed of the wifi, but I do remember having no trouble working.

This cafe is run by Syra coffee, which is a popular chain of cafe in Spain. The building is a coworking space / startup community called itnig, but the cafe is open to public with a plenty of seats. The WiFi is workable but not the fastest. Also, there are not so many comfortable seats to sit for the entire day, especially if you're alone. If you can't get the table seats, you only get the high stools or the weird mattress seats. There's not many power outlets as well. Also, in the after noon, the sun light gets bit too much and can get quite hot inside.

A small cafe near Beimen station, just beside The North Gate landmark. If you want to stay and work, be sure to go to the second floor, which is bright with lots of natural light. Clean, minimal interior. I especially like the large worktable, and the counter seats overlooking the street. Plenty of coffee, tea, and desserts on offer!

Delftse Poort is a large office complex right next to Rotterdam central station. The ground floor public spaces are open to anyone, and you can find some really nice spots to sit and work from. Some tables are marked as "Tenants only", which cannot be used. However, if you see a sign saying "Flexible working" then you can use the space. There is also a small cafe if you head up using the escalators. Restrooms are located upstairs as well. Fast WiFi, comfortable chairs, and power outlets.

A fairly large coffee company location not too far from Rotterdam central station. First floor has a large worktable and counter seats. There is also seating on the second floor. Several restrooms available on the top floor. The WiFi was extremely slow though.