If you want to trade forex but do not want to install trading software, buy indicators and subscribe to paid financial news services, you can get along with the following setup.
Many brokers offer a web-based trading platform such as a hosted Metatrader 4 or 5 solution that you can use. All you have to do is go to the hosted trading solution website, login and place your trades. If, for example, you are using Pepperstone in the UK, they offer a link to their WebTrader platform right on their homepage. You can add some standard indicators to the charts and they will show up again if you login the next time for as long as your login settings were somehow saved. If you delete your cookies and browser history and have to login from scratch, you will have to add the indicators again.
Web-based Currency Strength Meter
One of the indicators I use a lot is a currency strength indicator or also called currency strength meter. Such an indicator cannot be found in the WebTrader hosted solutions offered by brokers such as Pepperstone and you cannot add custom indicators to their hosted WebTrader solution. So, I found this website with a currency strength meter instead, that can be used to get a good indication of potential strong/weak currency pair combinations to investigate further. In the below example, the USD is weak and the AUD appears strong, which would then be a potential currency pair to investigate further in the WebTrader solution offered online by the broker.
Web-based Currency Strength Meter.