You build a profile and bid on client projects (hourly or fixed-price) using paid "Connects", or get invited to jobs. Clients pay through Upwork, which deducts a freelancer service fee before you withdraw.
You list fixed-price service packages ("gigs") that buyers order directly. Fiverr keeps 20% of each order, and the rest clears to your balance for withdrawal.
You list yourself as a tutor for online or in-person lessons and set your own hourly rate. Wyzant keeps a 25% platform fee and pays you the rest by direct deposit twice a month.
Pay ranges come from the platforms' own pages and reputable reviews, and vary by project, location and skill. Some links are referral links and are labelled where they appear; they never change what we list or the order we list it in.